Aug 23, 2020 · I’ve looked at promaxx 317 rect port heads as well. Dec 22, 2005 · ProMaxx BBC Head Review Jump to Latest 21 - 40 of 111 Posts. Steel Retainers Jun 13, 2023 · Showing what I’m doing now on the promaxx 317Contact info:Weingartnerracing@gmail. I have used lots of the LS and sbf ones and the quality of them is great. Machined and assembled in the USA. The Maxx 317 is truly a rare breed in today’s market. Also pay attention to the bore size that the heads were tested on. Shock the competition without breaking the bank by ordering a pair of PROMAXX Performance Shocker Series big block Chevy cylinder heads. 383. This new casting is CNC Ported 185cc to make up to 50 Hp over stock heads. Please select a quantity of 2 on the following page to order a pair of cylinder heads FLOTEK’s medium sized 290cc oval port cylinder head with 112 combustion chamber is recommended for moderate street or street/strip big block Chevys with displacements up to 509 cubic inches, operating at or below 6500 RPM. The 185cc series 1 heads are perfect for that budget build. I ordered a pair thru Jegs and thanks to their current promotion of $100 off orders of $1000 or more, my cost was about $1150 to my door for a pair of bare heads. 300 valves. cstraub · Vendor. The quality is what I care about and am willing to put my name behind. 25 out of 5 stars. This head will change the industry. 6/5. These heads are very ch Jun 20, 2023 · Both Square ports around 320 or so cc. 600 the Summit head was like 260 cfm or so and had a big deltas from . ProMaxx Performance began business by revolutionizing the CNC cylinder head market. 360cc Intake Ports. 00. So the real big difference was in the exhaust port flow. Some comparable heads are double the cost of one Shocker 325 CNC. 1 5 of 6 Go to page. The AFR is a "roval" head and most aftermarket intakes are oval ports. 00 Select options This product has multiple variants. The Summit head picked up 50 hp and 30 tq over OEM. Joined Dec 22, 2005 · 10,236 Posts. comEmail: w Nov 16, 2006 · Replace the heads with aluminum (rect. 320cc Intake Ports. Does anyone have any first hand experience with these heads? They are 869 bucks plus the shipping. Jun 13, 2016 · 496 bbc head selection. Compare price, Compare Quality, Compare performance. A friend did go 6. PROMAXX Performance Freedom Series Small Block Chevy Cylinder Heads 2169 PMX-2169. This head has produced over 550 hp on pump gas and mild cam . The Shocker CNC 340cc BBC is a professional designed cylinder head using the latest CNC porting tools. 3. 88'' Exhaust Valves. For a hydraulic roller engine of 450-600HP in an aluminum head is the ProMaxx 317 BBC head with Inconel exhaust valves for about $1700 per pair assembled. Shop Now at the Guaranteed Lowest Price! $5 off $49 / $25 off $249 / $55 off $499 / $110 off $999* - Use Promo Code: SUMMER The Shocker CNC Series is our top of the line performance cylinder head. Timely shipped from Promaxx. 575", then that flow at 0. 030 over block, 4340 stroker crank and 6. 700" of lift. I know these arent AFR heads but they dont cost as much either. 88'' Exhaust Valve Sizes. I think the Brodix RR BB-3 XTRA O's are a bit out of my planned budget. 600'' Max Lift. Sep 18, 2018 · I have experience with just about every head. The heads feature one Feb 27, 2019 · If the opportunity presents itself and they fit your build, I'd take a good long look at ProMaxx 317 heads. The Maxx 290 is truly a rare breed. If you do ported promaxx heads the 3xtra as cast heads are about same price. Freedom Series cylinder heads feature one-piece Jul 22, 2014 · so maybe this is old news but promaxx apparently acquired the company that acquired patriot cylinder heads, which made very economical high performance aluminum cylinder heads here in the USA, they also CNC machine stock heads in addition to making their own castings for big blocks, small blocks and small fords. 600" won't mean much to you. I hadn't considered them previously, because I was originally researching heads for my 502 and was looking for smaller chamber cc's to match the 502 pistons. ProMaxx Performance Products. 317cc intake runners great for street, street/strip, power tour, or smaller cubic inch competition (427-525ci). Even the ''as cast'' heads utilize ultra-smooth new runner and chamber designs that produce ''CNC'd type'' flow numbers. how to make bbc power. This video reviews the Promaxx Performance Freedom Series aluminium cylinder head that you can buy from outlets such as Summit Racing. 300 valve and better valve job - I'd buy them bare and have somebody that knows what they're doing install 2. With ultra-smooth Grade A 356-T6 aluminum castings that are precision CNC-machined, these small block Chevy heads deliver awesome air speeds with super-efficient chamber designs to produce the power and torque you need for the street or strip. There is NO AS CAST head on the market that can outflow these heads PERIOD! We have done our homework and produced what we believe is the best as cast head-on at an affordable price. The MAXX Series is taking the affordable performance cylinder head to the next level. IK® Series Cylinder Heads/23° Race-Rite® Small PROMAXX Performance Freedom Series Big Block Chevy Cylinder Heads. 600", but if your lift at the valve is 0. If I was a 540 or 572, then rec. It is the customers responsibility to verify proper piston to head clearance. Oct 2, 2008 · Merlin Cast Iron 269cc BBC Cylinder Head, Merlin III Cast Iron 320cc BBC Cylinder Head World has a couple of BB heads that are perfect for the budget builder. guy paid 5k for complete engine. Ive never seen aluminum bbc and sbc side by side before, so i thought id put it out there for everyone! The 190 SBC is our 183cc runner head that has been CNC ported to match a 1206 Felpro gasket to pick up flow numbers for that little extra. Go out and shock the competition. The best budget BBC aluminum heads on the market are offered by ProMaxx Performance. 6. 88 valves and 11/32 guides. i almost bought a blown 496. you want to use. The Shocker CNC 325cc BBC is a professional designed cylinder head using the latest CNC porting tools. Yes, the ProMaxx heads are a copy, but so is just about every other head on the market. I show flow numbers and dyno numbers. A 290cc port would be too big. Capable of flowing Kit Includes:ProMaxx Performance 320 Series Aluminum Cylinder Heads for Big Block Chevy - 723-2214ARP High Performance Head Bolt Kit - 070-135-3603JEGS Intake Manifold Gaskets - 555-210100Fel-Pro Round Port Exhaust Header Gaskets - 375-1412Fel-Pro Wire Ring Head Gasket (2) - 375-1017-1JEGS STOCK REPLACEMENT. ports) sometime next year and shave the head to get to 10. While at the ProMaxx Performance booth at the 2019 PRI Show, we learned this cylinder head company has options for everyone. The intake runners and exhaust ports are partially CNC machined, while the combustion chambers are offered with partial or full CNC machining with a bowl blend; this torque monster is capable of flowing 354 CFM at 0. Shop Now at the Guaranteed Lowest Price! $5 off $49 / $25 off $249 / $55 off $499 / $110 off $999* - Use Promo Code: SUMMER ProMaxx Performance Cylinder Heads available: Big Block Chevrolet (BBC) Cylinder Heads available in 320cc & 360cc at different valve sizes. ProMaxx Performance promised not only plenty of flow but at a significant savings over their competitors. It not only out performs the competition; it is at a price that Mopar owners cannot believe. 119cc Combustion Chamber. When selecting a cylinder head, it is better to stay on the smaller side. Independent flow bench testing shows over 375 cfm. Going fast doesn’t have to break the bank, so get a pair of XXTREME Series Heads today. The ProMaxx 723-2211 cylinder head uses standard exhaust manifold or any header. Casting, ports, all de-burred edges etc. I personally owned a set of BBc ProComp heads, that on the same 500+ inch BBc in a dragster, OUTPERFORMED these AFR 335 The XXTREME Series is our newest line performance cylinder head. This head will support big power at a price that can't be beat. 4323 Get the Best Performance with ProMaxx Performance 340 Series Aluminum Cylinder Heads Big Block Chevy 9343 parts at JEGS. PROMAXX Performance Maxx Series big block Chevy cylinder heads are custom designed to satisfy demands of the big block Chevy world, while retaining high-quality craftsmanship and reasonable prices. Find PROMAXX Performance Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! Jul 7, 2024 · I don’t have any personal experience with the pw BBC ones. If it is a Chinese clone of the current GM BBC head, then it is an Edelbrock knock-off. Mar 21, 2016 · Re: Promaxx 317 BBC head for 496 build Post by vortecpro » Mon Mar 21, 2016 10:31 pm Bob Hollinshead wrote: Mark has alot of years sorting out what works to make big power with these oval ports-I doubt he's interested in sharing his head porting details and I don't blame him LOL. 98 1. Taking the affordable performance cylinder head to the next level. (Sold in Pairs) $ 1,564. We made sure to install the Fel Pro intake gaskets with care. He flows them and also dynos the heads: Even though the bigger AFR flowed more peak, they made dramatically less hp and tq. (Sold in Pairs) $ 2,367. Compare to any brand, this head makes power! Mar 8, 2016 · I agree with you Adger, I too think to go conservative and not go too big. Call for more info 800. Obviously don't pick a camshaft until you've got the head and its specs. Part Number: PMX-9319 Estimated Ship Date: Sep 25, 2024 The Shocker 370cc full CNC ported is the Big Dog in our BBC line. 350 titanium intake valves on a fully cnc'd head that as delivered runabout $2800 complete for a pair will undercost and perform better than the AFR head. Unlike most of our competitors, we don’t offer different quality CNC designs. They also include a completed 5-angle valve job from ProMaxx. com Mar 1, 2008 · Check out this 496 Chevy Big Block Engine get tested with Edelbrock Performer RPM Cylinder Heads and Dart Cylinder Heads other cylinder heads are TFS, Brodix, GM and Pushrod, Featured in Car Craft Ultra-smooth 356-T6 Aluminum Casting; Competition 5 angle valve job; Hand Bowl Blending; Precision designed Runners; Large Spring pockets; 200cc intake runner 1 hour ago · Find PROMAXX Performance Freedom Series Big Block Chevy Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! PROMAXX Performance Freedom Series big block Chevy cylinder heads offer exceptional quality at an unbelievable price. 12. 5cc domed. The street manners should still be good. Product images may differ from actual product appearance. 781's with nothing more than a 2. Free Mount & Balance for Many Wheel & Tire Packages - Contact us for Details! ProMaxx, Maxx 290 Oval Port, Chevrolet Big Block Aluminum Heads: 290cc/110cc, Assembled, Mechanical Roller (up to . The Maxx 171 SB Mopar heads have finally given SB Mopar enthusiasts a choice. 120 in. The 340 heads will flow over 415 cfm and the 370 heads will flow over 450 cfm, so your engine will never be starved for air. Jun 3, 2023 · I give real dyno numbers comparing Promaxx 317cc BBC heads to AFR Enforcer BBC heads. Jul 19, 2019 · Big block chevy heads are massive to begin with. $1,564. 5 out of 5 stars. Jan 14, 2018 · 1. Representative Image. Shop Cylinder Heads at Summit Racing. Feb 14, 2019 · The ProMaxx head is a Steven headbut I would not say that all Steven BB Chev heads are "Pro Maxx" heads. Part Number: 320 Series Aluminum Cylinder Heads; Big Block Chevy; As-Cast; 320cc Intake Ports; ARP 135-3603 - High Performance Head Bolt Kit Big Block Chevy Late Bowtie Aluminum, World Prod. 350 valve, this head will support big cubic inches and Big power that will not break the bank and will shock your competition and ours. Cylinder Heads, Aluminum, Bare, 121cc Chamber, 370cc Intake Runner, Chevy, Big Block, Pair. These affordable heads are available in both as-cast and CNC-ported versions and multiple configurations. Nov 13, 2022 · I give a review of the Promaxx CNC ported bbc 325cc head with flow numbers. Ray Best pass 8. MAXX 317 BBC (Sold in Pairs) Shop the Best available ProMaxx Project X Series Small Block Chevy Aluminum Cylinder Heads parts at the Guaranteed Lowest Prices! High Performance Parts Delivered Fast. 4. ProMaxx's full CNC port head is quite good as well. Now the exhaust the OEM BBC head flowed like 200 cfm or so at . Free Shipping - Estimated to ship direct from manufacturer on 08/29/24 , pending manufacturer availability. Casting quality, machine work very good. The 2 V 4. Flow numbers as specified. ProMaxx Performance 7071 ProMaxx Performance CHR621N Cylinder Head for Cummins Diesel 6. they have gotten better. I didn’t go this route because I need a standard exhaust port location, so I’ll probably go with Brodix 24* head. An As Cast head that is just as efficient as competition's CNC ported pieces. Website: www. Part Number: PMX Find PROMAXX Performance Freedom Series Small Block Chevy Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! PROMAXX Performance Freedom Series small block Chevy cylinder heads offer exceptional quality at an unbelievable price. 250 intake. 00 – $ 2,580. Jun 1, 2017 · I have been looking on Skip Whites web site and am considering a set of promaxx 185 64cc aluminum cyl heads for a hyd roller 383. Small Block Chevrolet (SBC) Cylinder Heads available in a large range of valve sizes to suit 185cc, 190cc, 195cc, 215cc & 225cc Intake port volumes to either a 64cc or 72cc Exhaust port volume. See more product details. Flowing over 415 cfm, this head The Shocker 200 CNC ported Ford FE is exactly what the FE community has needed. Pistons are forged Diamond 21. 25 to 1 static c/r ProMaxx BBC 317 cast as port heads. Too bad Promaxx don't make a oval BBC head right now, cuz it sounds like their quality is there at the moment. He has the flow numbers posted on his website. Heads are designed for 3/8" pushrods. Custom designed to meet the demands of the BBC world, while keeping the quality high and the price reasonable. Part Number: PMX-2169 Estimated Ship Date: Today ProMaxx Performance Products, Maxx 290 Oval Port, Chevrolet Big Block Aluminum Heads . 4 days ago · Get the Best Performance with ProMaxx Performance 317 Series Aluminum Cylinder Heads Big Block Chevy 9317 parts at JEGS. Same engine same dyno same day. Making great power at a price that cannot be matched. S. 700"), Pair : Check for Availability Sep 1, 2009 · Patriot’s Freedom Series heads meet the demands of the BBC world, while keeping the quality high and the price reasonable. 1 4 of 6 Go to page. I highly recommend and a thanks to the Promaxx people! Aug 26, 2020 · FULL DYNO RESULTS-340 PROMAXX VS 345 AFR-CHEAP VS BRAND NAME? CHECK OUT THIS VIDEO COMPARING THE FULL CNC PROMAXX 340 BBC HEADS AGAINST THE AS-CAST AFR 345 H Sep 25, 2014 · BBC CYLINDER HEADS PAIR. Free Shipping - PROMAXX Performance 9290 with qualifying orders of $109. aluminum should use closed cooling but if a lot of freshwater use or good flushing after use aluminum will be fine. Part Number: PMX-92002HR. Jun 20, 2020 · Billy G's personal 496 build for his 1969 Camaro. chinese VALVES are not to be trusted. At PROMAXX, we provide our XXTREME series at prices that make our competition cringe. Aluminum performance cylinder head 315-cc rectangular intake ports ProMaxx 9215S Project X Aluminum Cylinder Head Features: Cast from 356-T6 ultra-smooth aluminum with larger valve spring pockets and runners designed to be both accurate and precise Straight spark plug angle uses a 14 mm . 385 forged rods. 315cc FloTec heads. Our new ultra smooth casting made of Grade A 356-T6 aluminum is precision CNC machined to create the perfect platform for our new runner and chamber designs. ProMaxx Performance Head Spring Kit Bbc/sbc. Flowing over 328 cfm through only a 210cc runner will make the power you need from your big cubic inch small block Ford. PROMAXX Performance Cylinder Heads 92002HR SBC CYLINDER HEADS PAIR. 00) Maxx 351 4V Cleveland (SOLD IN PAIRS) quantity. The porting of performance cylinder heads has long been an essential part of attaining maximum horsepower. ProMaxx Performance Products, Maxx 290 Oval Port, Chevrolet Big Block Aluminum Heads . The first one is the assembled Merlin oval port cast iron head, with a 269cc intake volume, a 119cc combustion chamber, 2. Part Number: PMX-2168 Estimated Ship Date: Tomorrow PROMAXX Performance Freedom Series Big Block Chevy Cylinder Heads. Top End Combos; LS Compatible Heads Menu Toggle. An As Cast head that is just as efficient as competition’s CNC ported pieces. The ProMaxx MAXX Series Big Block Chrysler Aluminum Cylinder Heads are taking affordable performance street and strip cylinder heads to the next level. This head flows 385cfm @. The new SBC heads and the new FE head are both very nice pieces. 360 Series Aluminum Cylinder Heads. 00 – $ 2,879. Some of the oval port cylinder heads will out flow and out perform the larger rectangle port heads. So, if this is a Chinese copy of an actual GM design, it would be at least 45 years old. buy bare castings and put manley or ferrea valves in with compcams or better springs, locks, etc. May 26, 2019 · deal with the cheaper china made heads is that people want to go fast for little $$ as they can, yes the name brand heads are bad ass and very nice but the companys have priced them selves almost out of the game , its just plain insane, freaking $3000 for a decent set of heads and get into the nicer trick heads , hell $7000-10,000 for heads, so Jan 25, 2023 · You can make a really nice set of heads for a lot less than a new set of alum heads. You can contact me at The heads feature one-piece stainless steel intake and exhaust valves, CNC bowl-blended intake runners, and combustion chambers. Chevy High Performance used these to build their 675 hp 496. They specialize in cylinder heads for small block Chevy, big block Chevy, and small block Ford. chinese castings used to be junk. It is not a ProMaxx head unless I'm mistaken. There is no other choice for your FE. pushrods with 0. Our casting is fully CNC ported by Keith Craft Racing, making it a definite player in high performance at a price that will destroy the competition. Yes (+ $ 20. The Ford FE Maxx 170 has made upgrading or reviving your FE motor affordable. PROMAXX Performance Maxx Series Big Block Chevy Cylinder Heads 9319 PMX-9319. 25 valves/pocket porting/are capable of flowing 330 cfm to 350 cfm this is enough to build over 600 hp and around 600 pounds torque Apr 21, 2015 · Lifting the aluminum AFR BBC heads, very cool. Mar 10, 2019 · Take a look at the ProMaxx 370cc Shocker series heads. pro comp heads, an intake valve head popped off in his driveway at idle. ProMaxx is working on an Oval Port head in the 280cc range, a 337cc, and 367cc. The Shocker 370cc full CNC ported is the Big Dog in our BBC line. This NHRA-legal aluminum cylinder head is a replacement for the L88 Big-Block cylinder heads used on 1968-1971 Corvettes and 1969 Camaros. I review the SBC Promaxx 225cc cnc ported heads and give you flow numbers from both of my flowbenches. Merlin, Iron Dart, Pro-1 and Pro Top Line Heads The Shocker 210 CNC SBF heads are tops in the industry. Sep 29, 2015 · ProMaxx BBC Head Review Jump to Latest 102K views 110 replies 40 participants last post by steelcomp Oct 31, 2016 This item is not sold as a pair, this is a single cylinder head. ALL PERFORMANCE SERIES HEADS SOLD IN PAIRS! Series One 175 SBF (Sold in Pairs) $ 979. . screw-in rocker arm studs and guideplates for 3/8 in. Apr 23, 2021 · speedmaster is a chinese head. 700" lift. Flotek had a 290cc, 315cc and 320cc head and Promaxx had a 317cc head. wall thickness. Our small port, high velocity 265cc cylinder heads are a cost effective choice compared to re-worked factory big block chevy cylinder heads. 650" lift. pushrods. The ProMaxx heads respond to the same things that any production head respond to; some attention to detail. Brodix, AFR, Edelbrock, and Trick Flow all make some great flowing oval port cylinder heads. These are some of the nicest castings I've had the opportunity to handle. Find Parts and Accessories Promaxx bbc heads KEYWORD and get Free Shipping on Orders Over $109 at Summit Racing! MAXX 290 BBC CYLINDER HEAD PR. Product Q&A View Now. That went out the window going to a 540. 5° Small Block Chevrolet Compatible Heads Menu Toggle. Part Number: PMX-9291. 00 – $ 3,683. $5 off $49 / $25 off $249 / $55 off $499 / $110 off $999* - Use Promo Code: SUMMER. Compare to any brand, this head makes power! Oct 16, 2012 · GM now uses the Edelbrock designed & produced head(s) & intake(s) for BBCs. May 24, 2016 · Sporting 572 cubes, this stroker needed plenty of airflow to feed all those extra inches. Jan 2, 2019 · Thanks Scott, I appreciate the input. Shop Now at the Guaranteed Lowest Price! Free Shipping over $199* MAXX 317 BBC. Independent flow bench testing shows over 400 cfm with 2. Jun 18, 2023 · I dyno tested a set of AFR 265, Brodix RR270, and Promaxx 290 heads. 7/16'' Rocker Arm Studs. 345cc head is WAY to big for a 496. Flowing over 450 cfm with a 2. ProFiler as-cast airflow rates rival the CNC street ported version of the AFR head, putting those two at the top of a flow test comparison list. I wouldn't think weight is a big issue. As-Cast. Dec 5, 2020 · The foundry is a modern, high tech foundry that casts all sorts of different parts. They're machined from high-quality aluminum and most come assembled with the finest parts (bare heads are also available). Lifting the iron BBC heads, not so much. Discussion 4 days ago · Get the Best Performance with ProMaxx Performance 317 Series Aluminum Cylinder Heads Big Block Chevy 9317 parts at JEGS. I give real flow numbers and review the Promaxx BBC 317cc head. It features professionally designed runners and chambers meticulously designed in the U. Nov 1, 2022 · I review and flow a Promaxx Project x 200cc head. PROMAXX Performance Freedom Series Small Block Chevy Cylinder Heads 2168 PMX-2168. Go. I also tried different intakes to see how they compare wi Upgrade your Small Block Chevy to aluminum heads with ProMaxx Project X Series Cylinder Heads. Mar 4, 2016 · Re: Promaxx 317 BBC head for 496 build Post by Adger Smith » Tue Mar 08, 2016 8:07 pm I just sold a set of the Race Rites to a customer with a 468 BBC and was impressed with them. Move up to the Voodoo 60205 cam, single plane intake (like Victor Jr. Depending on your budget you go with the new ProMaxx 317cc head or an AFR305/315 head. 750 in. Sold as a pair, all ProMaxx performance cast aluminum cylinder heads will outflow the competition, period! Nov 6, 2020 · Mike, awhile back I was also seeing what’s out there for budget heads and came across Flotek and Promaxx, both import castings I think. Scott I know you know very well the quality and Hp potential of the "CHINA' head. 00 – $ 1,565. The ProMaxx look very interesting. 19 valve and performance valve job will flow over 300cfm and that's 700hp potential. 300 intake compared to the AFR 335 with 2. Patriot’s BBC heads come as cast with a 320cc intake runner, US made bronze guides, and a 5 angle valve job. If you don’t see what you are looking for, we may have a reman unit of your head. Mar 12, 2016 · Re: Promaxx 317 BBC head for 496 build Post by Bob Hollinshead » Sun Mar 13, 2016 5:16 am vortecpro wrote: 496 9. Features 100% CNC machined intake runners , exhaust ports and combustion chambers; capable of flowing 375 CFM at 0. $2,580. The Maxx 200 is the ultimate “as cast” head available that produces CNC type flow number, flowing over 280cfm. These PROMAXX Performance Freedom Series rectangular port 320cc intake runners with hand-blended valve bowls are good for the street or strip. Maximum quality, maximum performance, and minimum pricing--PROMAXX Maxx Series SBC cylinder heads take affordable power to the next level. 300x1. 600 lift with a 317cc port! 2. Our combustion chamber shapes are very critical to flow and altering the cylinder head can adversely affect flow and power production. That’s what we call getting Maxxed Out! Our medium sized 290cc oval port cylinder head is recommended for moderate street or street/strip big block chevys with displacements up to 509 cubic inches, operating at or below 6500 RPM. Now go out and shock the competition. These heads out flow the competition at a price that cannot be touched. MAXX 290 BBC CYLINDER HEAD PR PROMAXX Performance Cylinder Heads 9290 PMX-9290. Manufactured from high-quality aluminum, they are assembled with the finest components. Both Flotek and Promaxx can make big power as well. Nov 20, 2023 · I show the flow difference between a ported and stock promaxx 290 head and the horsepower difference between the two heads. 600"), Pair 317cc/119cc, Assembled - Hydraulic Roller (up to . Oct 1, 2019 · Say an engine that's not in heads up class or going for ever hundredth, and looking for 1000 or less Hp, they there a very good and respectable option IMO. ), Holley or Demon carb. More than one head porter has reported 400cfm+ from the ProMaxx 317cc runner head with nothing but a 2. Detailed Description: ProMaxx Performance Maxx 317 Chev BB Aluminum Heads Made right here in the USA. 212 60'. Part Number: PMX-9290. 3 days ago · These heads out flow the competition at a price that cannot be touched. Ships February 1st Mar 18, 2024 · Find PROMAXX Performance Cylinder Heads bbc heads KEYWORD and get Free Shipping on Orders Over $109 at Summit Racing! Save up to 10% on the Powersports Parts you Need! Vehicle/Engine Search Vehicle/Engine Search Make/Model Search Oct 28, 2019 · Get the Best Performance with ProMaxx Performance 200 Series Aluminum Cylinder Heads Small Block Chevy 9200 parts at JEGS. 10. 87 at 150. C 320cc ProMaxx heads Tame-ish Solid roller cam Twin S475 turbos Shocker 325 OVAL PORT BBC CNC. 600"), Pair In Stock Aug 20, 2019 · Find a serious good head builder with a flow bench get a set of 049/781 heads built and ported the cost of building the cast heads may not appeal compared to Aluminum aluminum is shiny the stock heads with big 2. In the long run it is better for everyone. With over 30 years of racing experience, at nearly every level bracket; pro Mod and Prostock. Dec 19, 2008 · ProMaxx BBC Head Review Jump to Latest 81 - 100 of 111 Posts. This new foundry that ProMaxx is working with makes nice stuff from everything we have been sent. Part Number: 723-9319T. Specializing in big block chevy ,small block chevy, big block ford and small block ford. they’re a good head for the money. Rings and pistons are set up for nitrous but I don’t plan on it for now. (Sold in Pairs) $ 2,948. comEmail: weingartnerracing@gmail. From Chads site. Promaxx Performance continues to evolve with the Project X lineup and has raised the bar on the competition. ProMaxx Maxx 317 Chev BB Aluminum Heads Made right here in the USA. he got 500 for his 5k engine. 300 lift on. Big Block Chevy. wengines. These assembled PROMAXX 320 BBC aluminum cylinder heads for 1966-2000 big block Chevy V8 engines will help you shave weight on a budget. A certain head may have killer flow at 0. Free Shipping over $199* Jun 4, 2023 · Well here is Eric's video comparison between BBc ProMaxx 317 with 2. Will make over 500 hp in a pump gas 383. Our mission is to provide the best performing cylinder heads on the market, at a price that cannot be beat. com PROMAXX Performance Shocker Series Big Block Chevy Cylinder Heads 9370. 30'' Intake / 1. C. do cheap aluminum bbc heads work? how much power do speedmaster bbc heads make? can the afr 265 heads m • 210cc Intake runner • Ultra-smooth casting • 356-T6 Aluminum • Multiple valve sizes • Flows over 295 CFM • 5 angle valve job • Hand Bowl blended Detailed Description: ProMaxx Performance Maxx 317 Chev BB Aluminum Heads Made right here in the USA. Because the stock exhaust ports are in the stock location, you don't have to Feb 13, 2024 · Eric Weingartner wasn't all that impressed with ProMaxx's CNC ported heads, they just don't flow the air that they should for the size. S. ProMaxx Performance HEAD MAXX BBC 317 ASSM. The Maxx 225cc SBC head is our largest "as cast" head in our line up, flowing close to 300 cfm @ . Joined Dec 19, 2008 · 4,526 Posts #81 ProMaxx Performance Maxx 317 Chev BB Aluminum Heads, 317cc/119cc, Assembled, Hydraulic Roller (up to . RPM airgap intake MSD distributor curved by Feb 19, 2018 · ProMaxx is a good value for the money. See All 15 Photos. 350" valves and tweak them a bit Mar 18, 2015 · anybody here run the promaxx (former patriot) heads? specifically the 2117 or 2121 225cc runner versions? thinking of picking some up for a budget solid flat tappet 350 shoot for maybe 500 crank hp, rev to 6800-7000, single plane intake, 4150 holley 750DP Cylinder Heads Menu Toggle. Estimated Ship Date: Sep 23, 2024. Optimized for High Performance Designed specifically for naturally aspirated engines, Jesel’s Sportsman Aluminum Series Shaft Rockers are crafted from high quality 2024 aluminum. 450 cfm out of a 2. PROMAXX Performance Products specializes in all types of automotive cylinder head for any budget, carrying Performance cylinder heads, diesel cylinder heads and stock replacement cylinder heads. Part Number: 723-2254. Kit Includes:ProMaxx Performance 320 Series Aluminum Cylinder Heads for Big Block Chevy - 723-2214ARP High Performance Head Bolt Kit - 070-135-3603JEGS Intake Manifold Gaskets - 555-210100Fel-Pro Round Port Exhaust Header Gaskets - 375-1412Fel-Pro Wire Ring Head Gasket (2) - 375-1017-1JEGS Launched in 2001, these rockers have quickly become the go to choice for replacing inefficient stud rocker assemblies in both OEM and aftermarket cylinder heads. peanut port vs aluminum heads. FLOTEK's medium-sized 290cc oval port cylinder heads are designed for 3/8 in. Find PROMAXX Performance Project X Small Block Chevrolet Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! PROMAXX Performance Project X small block Chevrolet cylinder heads have the right stuff to perfectly fit your budget build with abundant power. Bare, 2/pkg. I share the results from them. Freedom heads also include 7/16 in. 400" as a valid way to compare heads and it has worked well for me. 505 BBC. These heads outflow the competition at a price that cannot be touched. We specialize in all types of cylinder heads, from diesel to performance. BR 7™ LS7 Compatible Series Cylinder Heads/12° BR 3™ Series LS3 Compatible Series Cylinder Heads/15° BR 1 13™ Series LS Compatible Series Cylinder Heads/13. Add to cart. Sold 3/2018 Flotek 290 bbc head, anyone Find Brodix Cylinder Heads Race-Rite Oval Port Cylinder Heads for Big Block Chevy and get Free Shipping on Orders Over $109 at Summit Racing! Brodix Cylinder Heads Race-Rite oval port cylinder heads for big block Chevys bolt on directly in place of your stock heads, so you can reuse your intake manifold and pistons. Part Number: PMX-9370. Nov 4, 2013 · The heads will be sitting on a seasoned, studded 454 . The As-Cast heads utilize ultra-smooth A356-T6 aluminum castings, new runner and chamber designs to produce CNC ported type flow numbers! The 210cc intake runner design heads flow over 295cfm! Producer and Seller of aluminum aftermarket cylinder heads, intake manifolds and engine accessories. Our performance line has become a passion. Whether you are looking for a se Jun 11, 2023 · I give dyno comparisons between a set of Promaxx 290 oval (roval port) heads vs Promaxx 317 heads. FLOTEK High Performance Cylinder Heads 1712 Read Street, Evansville, IN 47710 Phone: 1-800-270-0095 I Fax: 812-421-0983 The MAXX Series is taking the affordable performance cylinder head to the next level. Dec 22, 2005 · ProMaxx BBC Head Review Jump to Latest 61 - 80 of 111 Posts. 00 Lowest Price Guarantee Rated 5 out of 5 by 68 Camaro Fast 16 from Promaxx delivers a top quality product ! Purchased set of 2210 BBC heads to inspect and I'm pleased to say they are everything advertised. There is no comparison in the market. Flowing over 415 cfm, this head is on top of the heap. 97 at 209 this weekend past with the PW BbC heads on his twin turbo deal. 5-11 CR. steelcomp · Banned. 320 Series Aluminum Cylinder Heads. Shop Now at the Guaranteed Lowest Price! Dec 1, 2016 · With our tuning finally dialed in, the ProMaxx BBC heads demonstrated their worth on the 572 stroker by producing peak numbers of 850 hp at 6,800 rpm and 719 lb-ft of torque at 5,500 rpm. 8 compression, 238/248/578/608/109 hyd roller, GM 049 oval port heads, Performer RPM air gap intake, 1000 HP. Compare performance and price and you will see it is no contest. The aluminum head found on GM BBCs is an Edelbrock head w/a GM part #. JEGS Friends & Family Sale - Save Big on 10,000+ Products. ports heads for sure, but I just feel the ovals are more suited for my street application at this point. Click image to zoom. At PROMAXX, we provide our elite series at prices that make our competition cringe. Shocker 340 BBC CNC. Website: wengines. 235. They tested I think it was a 496 NA like 600 hp or so. The ProMaxx MAXX Series Small Block Chevy Aluminum Cylinder Heads are taking affordable performance street and strip cylinder heads to the next level. Dec 7, 2023 · I show measurements and flow data for the promaxx 370cc Cnc ported bbc heads. From Chads site 505 BBC. These heads flow over 350 CFM. 7L 24V #7225 #7221 Common Jun 4, 2023 · The whole point is many many people shit on the Flotek/Promaxx as a shit ProComp style head? They just think or see CHINA as must be inferior. Ultra-smooth 356-T6 Aluminum Casting; Competition 5 angle valve job; Hand Bowl Blending; Precision designed Runners; Large Spring pockets; 215cc intake runner MAXX 290 BBC. Compare to any brand, this head makes power! Oct 15, 2018 · I was advised many years ago to pay attention to the flow at 0. Dyno results show 20 to 35 hp gains over the competition. A. The Maxx 290 is truly a rare breed in today’s market. ProMaxx Performance 320 Series Aluminum Cylinder Heads Big Block Chevy. Order the heads recommended for your engine application. 2. BB-Chevy Cylinder Heads. No longer are you stuck with one real option. The options Find PROMAXX Performance Project X Small Block Chevrolet Cylinder Heads 215cc Intake Runner Volume (cc) and get Free Shipping on Orders Over $109 at Summit Racing! PROMAXX Performance Project X small block Chevrolet cylinder heads have the right stuff to perfectly fit your budget build with abundant power. reach spark plug such as Autolite AR3934 (sold separately) or equivalent We would like to show you a description here but the site won’t allow us. Its runner will feed your beast, street or strip. 300 or even 2. Not Yet Reviewed. Aug 9, 2002 · This head is a brand new piece from a brand new source. Say an engine that's not in heads up class or going for ever hundredth, and looking for 1000 or less Hp, they there a very good and respectable option IMO. The economical "As-Cast" aluminum versions feature ultra-smooth 356-T6 casting, precision machining, and an array of Available assembled or bare, these heads feature ultra-smooth 356 T-6 aluminum castings with hand-blended valve bowls, efficient chamber designs, 5-angle valve jobs, and diamond-honed bronze valve guides. ProMaxx supposedly has an exclusive with Steven on "their" heads, so my guess is there is something different about the Flotek head as subtle as it may be. It features professionally designed runners and chambers meticulously CNC ported in the U. FLOTEK recommends removing material from the piston and not the cylinder head, as the combustion chamber shapes are very critical to flow—altering the cylinder head can unfavorably affect flow and power performance. BBC CYLINDER HEADS PAIR. 4 SBF Modular CNC ported heads feature a unique NEW casting that fits both the Windsor and Romeo platforms. AFR strongly recommends material be removed from the piston and not the cylinder head. Available assembled or bare, these heads feature ultra-smooth 356 T-6 aluminum castings with hand-blended valve bowls, efficient chamber designs, 5 Oct 1, 2019 · Take thatbfor what it's worth. I always push American products over Chinese even though the promaxx heads are decent. Equipped with their CNC-ported 340-cc BBC heads, this 572 produced a hair over 850 hp and 719 lb-ft of torque. 1 2 of 6 Go to page. Maxx Quality, Maxx performance, Minimum price! Go out and shock the competition. This option is NOT available w/ bare heads. The economical "As-Cast" aluminum versions feature ultra-smooth 356-T6 casting I discuss some common Chinese aftermarket BBC heads. I am telling you I sell the Brodix race rites for really close to what I sell promaxx heads for. svw lhmwabbpo rvwdmy jhaun mbdecvx hyx xeo sxypc aphcrbu tvludr