Where are promaxx heads made in california

Where are promaxx heads made in california. minimum engine cylinder bore; Requires LS3 intake rocker arms; Included valve springs with tool steel retainers specs: Closed: 155 lbs. PROMAXX Performance Project X Small Block Ford Cylinder Heads. See more product details. #1 · Jun 1, 2020. $1,258. 320cc Intake Ports. 0 HO shortblock with stock replacement pistons, FTI 223/227 @ . Ultra smooth casting made of Grade A 356-T6 aluminum is precision CNC machined creating the perfect platform for new runner and chamber designs. Intake Runner: 185cc. Hd Rep. com; ATI, Atiracing. Because the bits are turned out of cobalt steel, they are capable of cutting into PROMAXX Performance Shocker Series small block Chevy cylinder heads are as good as it gets for 23-degree performance heads. Improve the already impressive reliability and longevity of your Cummins turbodiesel with PROMAXX Performance 6BT Product images may differ from actual product appearance. @ 1. com; CP Pistons/Carrillo Rods. That’s what we call getting Maxxed Out! Sources: ARP, Arp-bolts. Some comparable heads are double the cost of one Shocker 340 CNC. Cylinder head threads used for mounting exhaust manifolds on 4. Ultra smooth casting made from 356-T6 aluminum for superior looks and flow. Taking the affordable performance cylinder head to the next level. S. #18 · Feb 8, 2021. I had sent them my parts to assemble them. 750 in. Part Type: Cylinder Head Application: Ford Small Block (289-351W) Stud Mount Cylinder Head Material: Aluminum Get the Best Performance with ProMaxx Performance XXTREME Assembled 260 cc Rectangle Port Cylinder Heads for LS3 w/4 in. 0L Oct 4, 2019 · 68468 said: Pro Maxx is not owned by the Chinese, they just cast the heads. Had XVT stamped on them. There well done. JEGS 21110 - Steel Core Valve Cover Gaskets Big Block Chevy $19. Contact us for more Promaxx info. 2L or 5. The professionally designed CNC port flows like the top brands in the industry over 325 cfm. 2006-2007 GM 6. 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 PROMAXX Performance Maxx Series Small Block Chevy Cylinder Heads 9184 Cylinder Heads, Maxx Series, Bare, Aluminum, 183cc Intake Runner, D-port, Chevy, 302, 327, 350, 400, Pair Part Number: PMX-9184 Jan 17, 2024 · ProMaxx 9205 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. 80 with them Saturday. This option is NOT available w/ bare heads. 5-angle competition valve job, diamond honed bronze guides, hand bowl blending is standard. ProMaxx Performance Maxx 175 Ford SB (289-351W) Aluminum Heads Made right here in the U. I have a set of these Pro Maxx # 9175 I wanted to try out on my blueprint remanufactured 5. Jan 14, 2021 · The Promaxx heads are $600. SeriesONE. I think it's safe to say there isn't a lot of material "missing" in the ProMaxx head. 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 ProMaxx Maxx Series Chevrolet Small Block Aluminum Heads Made right here in the U. He receives bare cores from Promaxx, qualities controls the castings, does all the machine work, orings them, and fills them high quality, made in USA, internals. 10062 posts · Joined 2005. ProMaxx CNC Ported Ford SB (289-351W) Aluminum Heads These full CNC ported heads are what the small block Ford stroker engine wants and needs. ProMAXX Tool’s Cylinder Head Repair Kit, with the Blind ProSert, allows technicians to rescue a botched repair where an attempt to drill out a broken exhaust manifold bolt has penetrated the cylinder head. Features, items, and specs: * 200cc fully-ported runners * Professionally ported by Keith Craft Racing * 5-angle valve job PROMAXX Performance Project X Small Block Chevrolet Cylinder Heads 9186S. 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. 8 V8. 00 – $ 1,439. Detailed Description. 02 915 J head@155 and 160cc w/1. Our BB Mopar 210 has given the Mopar enthusiasts a great power producing head at a price that cannot be beat. The Butch 200 Series Exhaust Manifold Bolt Repair Kit - a revolutionary tool designed specifically to tackle those stubborn broken bolts in the GM 8. They feature ultra-smooth 356-T56 aluminum casting, and professionally designed runners and chambers that are meticulously CNC-ported. Buying from Promaxx also supports many jobs in Alabama. These heads flow over 325 cfm to easily support 725-plus horsepower. BB-Chevy Heads. Jason Collins who use to race in ihra pro stock owns the company as well as Alabama International Dragway. ProMaxx Performance 225 Series Aluminum Cylinder Heads Small Block Chevy. The SBF Maxx 180 is an as cast head that beats the competition. #3 · Jun 25, 2017. ONE. 1L & 8. 00 – $ 2,580. Part Number: PMX-9290 Estimated Ship Date: May 29, 2024 The XXTREME Series is our newest line performance cylinder head. They're generously offered assembled with valves, valve seals, springs, retainers, and locks. It not only out performs the competition; it is at a price that Mopar owners cannot believe. ) Whats important is the alloys that goes into the castings at the foundry. 2. Some issues with heat treat and issues with the inserts in the heads. 5 angle competition valve job, diamond honed This performance head flows 266 cfm at only 600 lift. 5 angle competition valve job, diamond honed bronze guides, hand bowl blending and assembly by Maximum quality, maximum performance, and minimum pricing--PROMAXX Maxx Series SBC cylinder heads take affordable power to the next level. 00) 1x Maxx 351 2V Cleveland. ProMaxx Performance developed/designed this cylinder head from the OE casting E7. 00. Sold Individually. Who owns ProMaxx cylinder heads? Jason Collins “We have a large assortment of heads, from full-blown CNC drag racing heads, down to heads for a 4. 88 fwiw and based on heads I have and measured. ProMaxx Small Block Chevy Vortec 185cc Cylinder Heads 723-2151; JEGS Cylinder Head Gaskets 555-210041; JEGS Cylinder Head Bolts 555-83400; JEGS Intake Manifold Gaskets 555-210003; JEGS Intake Manifold Bolts 555-83201 Sep 6, 2017 · The final touch was an MSD distributor and ignition amplifier. Series. Take your ProMaxx Performance Cylinder Head GM 6. Straight Plug. reach spark plug such as Autolite AR3934 (sold separately) or equivalent Made right here in the U. 57. JEGS 83255 - 12-Point Intake Manifold Bolts Zinc Dichromate $38. The kit removes broken exhaust manifold studs / bolts on Ford EcoBoost 3. 6L Duramax Diesel LBZ (8GF1) Assembled. Ford 6. Superior Proprietary Fitting vs. Part Number: PMX-2116 Estimated Ship Date: May 28, 2024 FORD 351 NEW FULL. ProMax is working with a Chinese company that does very nice work. Has anyone tried the new Promaxx Iron heads on their 5. PROMAXX Performance Cylinder Heads 9290 PMX-9290. Maximum quality, maximum performance, and minimum pricing—PROMAXX Maxx Series SBF cylinder heads take affordable power to the next level. Valves w/8mm Stems. Part Number:PMX-9186S. 25 inserts. 700"), Pair : Check for Availability Jan 6, 2022 · Edelbrock 5090 Edelbrock E-Street Cylinder Heads | Summit Racing. $979. (Sold in Pairs) $ 1,415. (Sold in Pairs) $ 1,173. And Jason is fine an example of a human being as one will ever come across. 91 coupe,306,afr 165 heads,anderson ford b-3 cam,edelbrock rpm intake,30 lbs injectors,73 mm mass air,70 mm throttle body,255 fuel pump,crane Hi6,new nx 100-250 system,bottle heater,15pnd bottle upgrade,jacobs nitrous mastermind,bfg drag radials,south bars,pro 5 Jul 15, 2013 · 04 f250 cc sb. This is due to repetitive Exhaust Manifold Repairs (EMRs PROMAXX Performance Shocker Series Big Block Mopar Cylinder Heads 9241 PMX-9241. . Part Number: PMX-2256 Estimated Ship Date: Jun 4, 2024 ProMaxx Performance Project X Bare Aluminum Cylinder Heads for Small Block Chevy (185cc) Project X Bare Aluminum Cylinder Heads. etc. With ultra-smooth Grade A 356-T6 aluminum castings that are precision machined, these small block Ford heads deliver awesome air speeds with super-efficient chamber designs to produce the power and torque ProMaxx Performance CNC Ported Ford SB (289-351W) Aluminum Heads These full CNC ported heads are what the small block Ford stroker engine wants and needs. Models: Bronco, Econoline Super Duty, E Series Truck, F Series Truck, LTD Crown Victoria, Mustang. 375 Dia. 440 Source (Stealth) - Some have claimed these to be the "best of the off shore heads". The Shocker CNC 340cc BBC is a professional designed cylinder head using the latest CNC porting tools. Jul 23, 2022 · I hate low port heads Flowtech has a newer 180 thumper sbf head. 6L, 5. At least the heads are machined and assembled in the US. Engine Size: 351W 5. 65 Mustang FB, 331 custom built with 289 H beam rods and 383W piston, 282S cam, Ported Maxx 180s, T5z, 9" 3. As-Cast. Equipped with Hooker headers, the 393 stroker was run PMXPSSCADPTR - Chuck Adapter ¼ x 28 TPI . ProMaxx 9208 Project X Aluminum Cylinder Head Features: Fully assembled with valve springs, steel valve spring retainers, Viton valve seals, 3/8 in. Improved performance throughout the RPM range for great throttle response and better top end power. 180 cc Intake Ports. Free Shipping. Estimated Ship Date:May 29, 2024if ordered today. These heads support flow over 350 cfm to easily support any high-horsepower build. Project XSeries. 00 – $ 3,683. MAXX 210 BB MOPAR (Sold in Pairs) - PROMAXX Performance Products. Jun 1, 2020 · 15 posts · Joined 2005. ProMaxx 9185S 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 14mm . Shocker 340 BBC CNC(Sold in Pairs) Shocker 340 BBC CNC. 39. These replacement cylinder heads feature castings thicker than standard OE specifications in crack-prone areas for added durability. Peak power was raised by 171 hp and occurred 1,400 rpm higher, while peak torque jumped by 51 hp and occurred 1,500 rpm higher. 9 lbs. “Our heads are made of 356-T6 aluminum which we spec, with different guides and seats than other economical heads on the market. Uses a 14mm . MAXX Series Bare Aluminum Cylinder Heads. These are new castings, modeled off OE castings for factory fit and finish. (Sold in Pairs) $ 979. Bare AFR 315 cnc Casting with seats and guides weighed 31. The chink castings Jpar mentions are not what there advertised at. Chris Straub. Available assembled or bare, these heads feature ultra-smooth 356 T-6 aluminum castings with hand-blended valve bowls, efficient chamber designs, 5 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. Click image to zoom. Maxx 351 2V Cleveland(SOLD IN PAIRS) Maxx 351 2V Cleveland. 225cc Intake Ports. Part Number: PMX-2121 Estimated Ship Date: Today ProMaxx 3161A XXTREME Assembled Cylinder Heads Notes: Requires 4 in. 60 in. Upgrade Rocker Arm Studs to a 7/16″. ~460HP@6500. Valve Angle: 15 Valve Seal Material: Viton Spark Plug Type: Angled Retainer Material: Steel Maximum Spring Jun 25, 2020 · As for the others, jegs and speed master. Small Block Ford. Run with the ProMaxx heads, the 393 stroker produced 558 hp at 6,400 rpm and 512 lb-ft at 5,000 rpm. Features. Exh. PROMAXX Performance Freedom Series Big Block Chevy Cylinder Heads 2256 PMX-2256. 00 – $ 1,565. Cylinder Head. Oversize Fee:$19. This head will change the industry. 60/60cc. 1987-1997. Might just use the older RPMS and torque to 110lbs for nitrous use. 150 in. 843 posts · Joined 2017. Valve Angle: 23°. Jan 14, 2021 #2. 9L? Part # is CHR807N, fully assembled for $371. 428kidd. Fully CNC 210cc intake ports, exhaust and 64cc chambers. Small Block Chevy. Seats Installed for: 2. This is a direct bolt on cast iron cylinder head to replace your factory casting. Min. Part Type: Cylinder Head Application: Chrysler Small Block '67-'85 Product Q&AView Now. Cast Iron Small Block Chevy Vortec Cylinder Heads. 5 out of 5 stars. Free Shipping - Estimated to ship direct from manufacturer on 03/29/24 , pending manufacturer availability. So far I really like the casting and quality of finish. . 60'' Exhaust Valve Sizes. PROMAXX Performance Freedom Series Small Block Chevy Cylinder Heads 2121 PMX-2121. 5 angle competition valve job, diamond honed bronze guides, hand bowl blending and assembly by ProMaxx Performance Maxx 317 Chev BB Aluminum Heads Made right here in the USA. Part Number: PMX-9207 Estimated Ship Date: Jun 4, 2024 Maximum quality, maximum performance, and minimum pricing--PROMAXX Maxx Series SBC cylinder heads take affordable power to the next level. (Sold in Pairs) $ 2,367. Promaxx - Not their full CNC ported head, these in the link. 02/1. 99. Not Yet Reviewed. Open: 425 lbs. Made In USA. Project X. What this does is offer a high flowing head at a great price. I have heard some that liked them and others that have had issue. 79. Int. Twin turbochargers, broken titanium bolts, small engine bays, along with dimensional changes in the cast iron manifolds due to extreme heat create new problems for the servicing technician. 89 gears. Crafted with expert precision, this kit is the ultimate savior for technicians. 5 angle competition valve job, diamond honed JEGS 83205 - Intake Manifold Bolts Big Block Chevy. At PROMAXX, we provide our XXTREME series at prices that make our competition cringe. 8L PSI engine. ProMaxx Performance CNC Ported Ford SB (289-351W) Aluminum Heads These full CNC ported heads are what the small block Ford stroker engine wants and needs. X . Not what Promaxx instructs. com; COMP Cams, compcams. Going fast doesn’t have to break the bank, so get a pair of XXTREME Series Heads today. 08'' Intake / 1. The Ford FE Maxx 170 has made upgrading or reviving your FE motor affordable. rocker arm studs, and guide plates Valve springs for use with a solid roller camshaft with a maximum valve lift of . A. reach spark plug such as Autolite AR3934 (sold separately) or equivalent PROMAXX Performance Project X small block Chevrolet cylinder heads have the right stuff to perfectly fit your budget build with abundant power. 7,722 3,431. Soldering. /1. The castings are clean, hardness test is great, and when cut in half have quite a bit of meat in them. Feb 7, 2024 · ProMaxx 9195A 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 Angled spark plug holes use a 14mm . They sent my parts back to me so I am goin to assemble them myself but I did get them for $815 with their valves. ProMaxx Maxx Series Chevrolet Small Block Aluminum Heads Made right here in the U. Part Number: PMX-9241 Estimated Ship Date: Jun 3, 2024 Dec 28, 2023 · Product images may differ from actual product appearance. Application: Ford Small Block (289-351W) MAXX 170 Ford FE(Sold in Pairs) MAXX 170 Ford FE. 5 angle competition valve job, diamond honed bronze guides, and hand bowl blending. For Ford F-150 and Ford Transit. Big Block Chrysler 210cc/295+ CFM Additional Cylinder Head Specifications. #5 · Sep 16, 2015. Maxx Series is the next level cylinder head with, in some cases an increase in CC intake and exhaust runner volumes and larger valves. Spark Plug: Straight. 02 in. Don’t let the size fool you, flowing over 260 cfm, this head makes real power. (Sold in Pairs) $ 1,330. 00 – $ 3,287. Part Type: Cylinder Head. Jun 25, 2017 · 145 posts · Joined 2014. You mentioned a set of aluminum heads for $1200 or less. ProMAXX Tool Threaded Drill Bits are turned, Not Stamped. May have hope,idk. 4L, and 6. hot rod magazine were pretty happy with the 180cc version on a milder sbc they built Sep 16, 2015 · cstraub. Like. 100 on the exhaust, ran 11. Oct 27, 2023 · AFR (Enforcers for example) and others are having heads cast in China too. ProMaxx Maxx 440 Chrysler BB Aluminum Heads. I think he still races a pro mod on occasion. Nov 4, 2017 · Its my understanding that ProMaxx bought out the former Patriot head and Liberty series alum head company. (SOLD IN PAIRS) $ 1,667. 00 – $ 2,029. ProMaxx, Maxx 290 Oval Port, Chevrolet Big Block Aluminum Heads: 290cc/110cc, Assembled, Mechanical Roller (up to . Some applications feature a thicker deck to solve common warping or cracking issues. 4. 100% CNC Ported. Superior USA-made, machine-shop grade tooling that delivers precision, quality, and productivity. Bare, 2/pkg. 800 in. This performance head flows 266 cfm at only 600 lift. Instead of spending the time and money refurbishing your Detailed Description: ProMaxx Performance Maxx 317 Chev BB Aluminum Heads Made right here in the USA. GM Vortec Cylinder Heads in a 185cc/64cc available in bare or assembled. There 170cc or less. 00 – $ 1,964. 00 each. ProMaxx Maxx 317 Chev BB Aluminum Heads. using Grade A 356-T6 aluminum and custom 5 axis CNC machining. 225 Series Aluminum Cylinder Heads. View Details. These heads out flow the competition at a price that cannot be touched. 0 Jeep Wrangler,” says ProMaxx owner, Jason Collins. I have a set of there CNC Maxx series. Spring Options. Sep 29, 2015 · Here's what we found: Bare ProMaxx Casting as cast w/seats and guides weighed 31. The MAXX 440 will wake up your Mopar. An As Cast head that is just as efficient as competition’s CNC ported pieces. 317cc intake runners great for street, street/strip, power tour, or smaller cubic inch competition (427-525ci). 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. Maxx 171 SB Mopar(Sold in Pairs) Maxx 171 SB Mopar. Not my personal best , but first The kit includes precision high-quality tooling, a ProBushing, ProDrill Gold tooling bits, tap, and four 8 mm x 1. 75". Quantity. $12. Dec 3, 2020 · vrm71. 5L and 3. $1,022. shoot for maybe 500 crank hp, rev to 6800-7000, single plane intake, 4150 holley 750DP. Product specific shipping charge: $19. Intake Ports: 185cc. I'm wondering how the castings/ports compare to the EQ heads. WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. reach spark plug such as NGK R5671A-7 (sold separately) or equivalent. Compare price, Compare Quality, Compare performance. Compare flow numbers and then look at the price. Aug 3, 2014 · ProMaxx Performance 440 heads - 08/03/14 11:16 PM. Aug 3, 2022 · ProMaxx uses the Chink castings. Estimated to ship direct from manufacturer on 03/28/24, pending manufacturer availability. The Maxx 290 is truly a rare breed in today’s market. Made right here in the U. Thanks to the Cylinder Head Repair Kit's gold tooling bits, ProTap and Blind ProSerts, techs PROMAXX Performance stock replacement cylinder heads are designed to be a direct replacement for your worn or cracked heads. Small Block Ford (SBF) Cylinder Heads in a 5 angle 2. Someone messed up. Compare to any brand, this head makes power! 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 . PMXPLF010 – Thread Locking Fluid. 00 cheaper than comparable alternatives but need to make sure that it is a apples to apples comparison. Shock the competition without breaking the bank by ordering a pair of PROMAXX Performance Shocker Series Ford FE cylinder heads. This particular version of our heads come with a 5 angle valve job, hardened seats, and bronze guides. Independent flow bench testing shows over 400 cfm with 2. 3 out of 5 stars. 320 Series Aluminum Cylinder Heads. 20 lbs. We have taken our 100% CNC ported intake and exhaust runners and have made them into an “As-Cast” version. 119cc Combustion Chamber. any buddy use ProMaxx Performance 9440 - ProMaxx MAXX Series Big Block Chrysler Aluminum Cylinder Heads Details. 300 valves. There is no other choice for your FE. Compatible with GM Part # 12677662 (Passenger Side) and 12616285 (Driver Side), this game Feb 12, 2015 · My ProMaxx Maxx 200cc sbc heads arrived. It puts out up to 20 hp over the competition. They say 80 lbs on the newer ones, the older ones had cracking issues at the bolt holes. They showed up assembled with their parts. 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. PROMAXX Performance Project X small block Chevrolet cylinder heads have the right stuff to perfectly fit your budget build with abundant power. Mfg Performance Parts. Motor Vehicles . 898 in. 8L engines are losing their ability to meet Ford torque specs following a repair. ARP 135-3603 - High Performance Head Bolt Kit Big Block Che $112. 1232. No longer are you stuck with one real option. Lowest Price Guarantee. Big flow numbers and a small runner size produce air speed and power. 080 clearance on the intake, over . The economical "As-Cast" aluminum versions feature ultra-smooth 356-T6 casting, precision machining, and an array of assembled options, as well as being available bare. Aug 8, 2017 · After buildings 1000s of heads from OEM cores and having all their issues and testing cores from many different suppliers, Jared found something that worked great. JEGS 80018 - Head and Crank Storage Bag 35" L x 10" W x 9" Maxx 180 SBF. MAXX 290 BBC. Promaxx Performance continues to evolve with the Project X lineup and has raised the bar on the competition. Thanks. $1,564. Ultra smooth castings made of Grade A 356-T6 aluminum are chamber designs. By flowing over 295cfm and using all stock type components it gives the Mopar enthusiast and affordable choice in the market withough sacrificing quality. Made right here in the USA. Mar 18, 2015 · anybody here run the promaxx (former patriot) heads? specifically the 2117 or 2121 225cc runner versions? thinking of picking some up for a budget solid flat tappet 350. 050 cam, mine had . 00 bucks fully loaded. Yes (+$ 20. Big Block Chevy. There shipped to ProMaxx where they finish machine them. 7L Coyote engines. colt cam stage 2, kill devil diesel heads, stage 1 pushrods, odawg s3r, bd manifolds,odawg y pipe, 4 inch turbo back ss magnaflow exhaust, CSF 6028 intercooler, mishimoto radiator, billet turbo wheel, 05 style headlights, S&B intake, XDP coolant filter, tuned with Sct by PHP and IDP, BDS Dual rear add a leaf, Firestone ride rite airbags, rough country leveling kit on 35s, 2 12 PROMAXX Performance Freedom Series Small Block Chevy Cylinder Heads 2116 PMX-2116. I got a set i might use but would want 90 lbs minumum. Valves are REV valves. Assembled. which are 179cc intake port 179cc is about 24cc larger than a factory 2. $ 448. It features professionally designed runners and chambers meticulously designed in the U. 64cc Combustion Chamber. 02'' Intake / 1. Bore w/63 cc Combustion Chambers 3164 parts at JEGS. Mopar Nation now has options. PROMAXX Performance Project X small block Ford cylinder heads are one word—awesome! They feature ultra-smooth 356-T6 aluminum casting, 5-angle valve jobs, precision CNC machining, and diamond-honed bronze guides and can make big power in your small block Ford application. 6L Duramax Diesel LBZ 8GF1 Assembled. 700 in. Combustion Chambers: 64cc. Series One offers is an "as cast" version from a CNC program featuring a 5 angle valve job, harden seats and bronze guides. I would recommend it for a budget head. Add to cart. MAXX 210 BB MOPAR. 60cc Combustion Chambers. Part Number: N/A Category: MAXX SERIES. PROMAXX Performance Project X Small Block Ford Cylinder Heads 9207 PMX-9207. Cylinder Heads, Project X, Aluminum, Assembled, 64cc Chamber, 185cc Intake Runner, Chevrolet, Small Block, Pair. 5 out of 5 stars. The New "MAXX 440 Big Block Chrysler" features a new ultra smooth casting. The foundry is in China (and if you think some of those other big buck heads castings are made in the states, think again. The Maxx 171 SB Mopar heads have finally given SB Mopar enthusiasts a choice. reach spark plug such as Autolite AR3934 (sold separately) or equivalent Mar 19, 2024 · ProMaxx 3346A XXTREME Assembled Cylinder Heads Notes: Requires 3. (Sold in Pairs) $ 1,564. fi ep ir sl jd ok ta xc wc ta