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      Promaxx heads review reddit. 10 gears, TH350 and stock 31" tires.



      • Promaxx heads review reddit Nov 30, 2022 · Looking for opinions/advice regarding Promaxx aluminum heads. 30/1. Promaxx 183 heads will be in the $1200-1300 range depending on the springs. They are junk. Jun 4, 2023 · Seems a lot hear want to not only shit on "china" heads and also group them all together. You can contact me at Apr 12, 2022 · I used a promaxx head for a Cummins before. 8:1 comp. 080 clearance on the intake, over . the guy had done saw cuts showing the ports and had tested the materail. Afr's or twisted wedge heads are the only way to go. A few bucks more can get Brodix Iron Killers, not sure on their availability at the moment. Looking for opinions/advice regarding Promaxx aluminum heads. Aug 11, 2020 · I appreciate all the input and have ordered a set of the ProMaxx heads for a sbc to take a chance and test them out, they'll professionally assembled and ported and I'll be keeping up with the cost to the dollar for anyone interested. 0 gained a 100 horsepower. I know that the proper way to fix this is to have the guides punched out, holes cleaned and proper sized guides fitted to the heads. Go. 0, with roller rockers. Edelbrock 5090 Edelbrock E-Street Cylinder Heads | The (un)official home of #teampixel and the #madebygoogle lineup on Reddit. I guess a better question is how would these heads be out-of-the box on a combo like this. Nov 1, 2022 · I review and flow a Promaxx Project x 200cc head. these heads are actually patriot clyinde heads. also of note, "assembled in america" . . 71,s they had dart 320 heads,they made 950,they had crane 651 hyd roller cams. Im noticing these have better flow numbers than the Tw170 but not sure of their quality. Well here is Eric's video comparison between BBc ProMaxx 317 with 2. I am considering purchasing a set of the SBF Maxx 180 cc’s for use on a street 351 W build. I only have one experience with Promaxx heads. The ProMaxx heads respond to the same things that any production head respond to; some attention to detail. I dont want to do that unless i absolutely have to though. 88 valves, 238@. I have not used these but they look promising. 049 heads 2. 5 out of 5 stars. The quality is what I care about and am willing to put my name behind. 6 valves. I'd prefer that over the two listed. The CNC-ported, 340cc versions from ProMaxx featured a 2. I also have 4. We just had a problem with the M311 heads (which is a china head) and its gonna cost us twice now. Allegedly they've got like… Nov 8, 2020 · AFR165's right out of the box bolted to a refreshed stock block, stock cam 5. Casting's weren't worth a dam, grid heater didn't fit correctly down in the intake port, had cross threaded whole for the valve train, and coolant ports were not correct for a truck application, had about 4-5 hrs of wasted unpaid time trying to get everything to work properly on that. Even a chamber bulged out putting the compressed head gasket ring on the inside of the chamber. Does anyone have any first hand experience with these heads? They are 869 bucks plus the shipping. I think I originally posted it on Moparts but have shared it here a couple of times. a few of the custom head porters have remarked that it is a quality piece. Dec 5, 2020 · The foundry is a modern, high tech foundry that casts all sorts of different parts. 0 HO shortblock with stock replacement pistons, FTI 223/227 @ . would like to ask some of the pro guys to check it out and see what they think of them. Above average for an out of the box head. 30 intake valve with a bowl blend to a 351cc 2. Sep 13, 2022 · I give real flow numbers and review the Promaxx BBC 317cc head. $5 off $49 / $15 off $249 / $30 off $499 / $65 off $999* - Use Promo Code: 2025 Jan 30, 2016 · 'These as cast heads utilize ultra-smooth new runner and chamber designs that produce "CNC'd type" flow numbers. Some comparable heads are double the cost of one Shocker 340 CNC. imo they needed a bigger blower like a 10. I was planning to install the promaxx 9175 180cc heads on a DSS 331 and its just a street car, so am wondering if these heads would fit the bill. 80 with them Saturday. The 200cc looks pretty good too. No major work was done to these other than a basic gasket match job. I know with smaller heads you give up some top end HP, but you don't spend much time over 5k RPM it probably won't matter much. PROMAXX Performance Project X Small Block Chevrolet Cylinder Heads 9217S PMX-9217S. i m pretty new on the head porting game . Sorry in advance for the wall of text, I'm a little confused about how to choose heads for my build. He has the flow numbers posted on his website. Oct 27, 2023 · Just wondering what opinions are on promaxx project x heads? I think they are afr copies, but that 215cc head looks very promising. Are they decent or trash? Jun 24, 2021 · ProMaxx cylinder heads have came a long way in the past few years. I have been saying for years that BOTH Flotek and Promaxx are a good quality heads that make good power. PROMAXX Performance Maxx Series Small Block Chevy Cylinder Heads 9183 PMX-9183. 6. 4323 May 7, 2022 · I already had the heads or I would have gone 200's. 1 6 of VortecPro 496, 9. 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 Jan 12, 2021 · Has anyone here ran the 225 shocker series head from Promaxx ? They look good on paper. they just closed down and Sep 22, 2017 · i built a pair of 548,s with 8. Part Number: PMX-9217S Estimated Ship Date: Feb 3, 2025 Mar 11, 2015 · SLPRACINGENGINES wrote:i saw a vidoe on youtube of the promaxx heads. 100 on the exhaust, ran 11. Posted by u/[Deleted Account] - No votes and 3 comments Mar 5, 2019 · I was planning to reuse my Gt40x heads but have enough funds for a head change. Flowing over 415 cfm, this head is on top of the heap. 050 Isky Hyd Roller, Sep 10, 2024 · Not mine. We buy them bare and go through them just like any other head we sell to a customer. 800. Part Number: PMX-9183 Estimated Ship Date: Jan 31, 2025 PROMAXX Performance Project X Small Block Chevrolet Cylinder Heads 9218S PMX-9218S. ProMAXX Performance has designed a complete new line of performance heads that meet or exceed the big names in the industry. Dec 1, 2016 · Though ProMaxx offered both smaller, as-cast and larger CNC-ported heads featuring 370cc intake runners, we opted for the middle of the three available heads. Thanks Jun 11, 2023 · I give dyno comparisons between a set of Promaxx 290 oval (roval port) heads vs Promaxx 317 heads. They're generally not going to come very close to the big name heads on the flow charts, but they beat the hell out of cast iron Factory examples. Yes, the ProMaxx heads are a copy, but so is just about every other head on the market. Any opinions. Oct 15, 2018 · ProMaxx makes a good head, it's been discussed a few times over on the SpeedTalk forum, which is more of an engine builder, head porting specialist, machinist frequented board. Posted by u/ssa407 - 2 votes and 5 comments Sep 29, 2015 · 320cc ProMaxx heads Tame-ish Solid roller cam Twin S475 turbos Thinking it would be a somewhat "budget" build with enough power to get a full weight car running low 8/ high 7's in the 1/4 while being plenty streetable. Throwaway/Alternate accounts with less than 25 comment karma will be removed. Get support, learn new information, and hang out in the subreddit dedicated to Pixel, Nest, Chromecast, the Assistant, and a few more things from Google. C 320cc ProMaxx heads Tame-ish Solid roller cam Twin S475 turbos Jan 25, 2020 · Banghart Diesel & Performance put down 355hp/659tq through a set of ProMaxx heads recently and a bunch of other parts from us. Scott has flowed the head AS IS with simple 3 angle cut supplied by foundry. by PRH » Tue Jan 12, 2021 9:34 pm. 250 intake. These heads out flow the competition at a price that cannot be touched. Oct 1, 2019 · They are not just good heads for the money, they are good heads, period. These are the set of ProMax heads I checked out and wrote a post on years ago. 71. The 337 and 367 will be available late next spring. ' CNC'd type numbers from what head, the OOTB EQ is 172cc and they claim 171cc. Nov 13, 2022 · I give a review of the Promaxx CNC ported bbc 325cc head with flow numbers. Someone brought in a CNC’d Ford Windsor Head to flow test. BLACK FRIDAY SALE: 15% OFF SITEWIDE - LIMITED TIME ONLY International Shipping Options Call 1. 2. The pair of heads we have here are production heads as they are received from the foundry. Cheaper heads need guide work and sometimes a valve job before you can use them. Jan 5, 2022 · BB mopar (440) street/pump gas motor. The larger stuff ProMaxx has in development. But that doesn’t tell the whole story. The heads cleaned up nicely with a bit of work. and it will be my last one. 08/1. This subreddit gets many posts and comments per day. Rule #1 Please note that you need karma to contribute. Maybe CNC'd 318 2 barrel heads. Dec 3, 2020 · I have a set of these Pro Maxx # 9175 I wanted to try out on my blueprint remanufactured 5. I think both could benefit with a tulip shaped exhaust valve like arf designed the ports for. We'll be pushing them to 400 here in the coming weeks. Flow numbers seem to be almost exactly the same as Profiler on intake, higher on exhaust. Went to the ProMaxx site and checked them out, and they seem to be comparable to the Profiler All-American 210 heads. Part Number: PMX-9218S Estimated Ship Date: Jan 30, 2025 Feb 22, 2022 · I just stumbled across the ProMaxx "Project X" SBC heads on Summit's site. Oct 15, 2018 · I looked at Promaxx heads, but finally bought the Blueprint H8002K heads, which are about the same price. 5:1 static for 91 pump gas). I probably should have bought the 340 short block or whole engine six months ago but it would have still been sitting 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. However, reviews online are decent. Jan 12, 2021 · Has anyone here ran the 225 shocker series head from Promaxx ? They look good on paper. I watched a dyno video on SBC heads and within reason the bigger CFM heads didn't lose much on the bottom end which surprised me ( I think they were 170->200 cc range) . 235. This is an all ProMaxx head. I appreciate all the input and have ordered a set of the ProMaxx heads for a sbc to take a chance and test them out, they'll professionally assembled and ported and I'll be keeping up with the cost to the dollar for anyone interested. Edelbrock e heads are good to but are priced close the the afr's. They get surfaced, guides honed to the application, our valve job and we have several CNC programs for them anywhere form a 2. 375/1. Not Yet Reviewed. 050 cam, mine had . E-street - These tanked for me when I saw what Ed's machine found. 25/1. 88 stainless (back-cut and swirl polished) valve combo, 122cc combustion chambers, and intake flow that exceeded 400 cfm 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. Now go out and shock the competition. Dec 12, 2021 · Does any one have experience with either the liberty or promaxx ls3 heads ? I'd run a factory LS3 head with a good port job. Are they decent or trash? ProMaxx cylinder heads have came a long way in the past few years. I show flow numbers and dyno numbers. The Shocker CNC 340cc BBC is a professional designed cylinder head using the latest CNC porting tools. 4. 300 intake compared to the AFR 335 with 2. I have standard dished pistons in a GM crate 350, so it limited the compression ratio I could achieve. So, my promaxx heads have some pretty bad guide to head leaks and are sucking oil into the intake ports through said leaks. 1 2 of 6 Go to page. i used to run the crap out of that thing every weekend and fixed the xr drives monthly. I have the opportunity to buy some ProMAXX heads that have been reworked, ready to bolt on to my 5. 10 gears, TH350 and stock 31" tires. Nov 19, 2015 · The 317 head is available now. I know these arent AFR heads but they dont cost as much either. Oct 16, 2012 · ProMaxx BBC Head Review Jump to Latest 101 - 111 of 111 Posts. i set it up for 8 to 9 lbs boost,the 320 heads had no port work done to them. Promaxx offers their Series One heads in iron and aluminum, and they have a 185 cc version. After a summer of driving he has nothing bad to say about the heads, no reliability issues related to the heads. 85 Dec 22, 2005 · ProMaxx BBC Head Review Jump to Latest 21 - 40 of 111 Posts. Cheap-o heads like these aren't performance monsters, but they're a lot better than the terrible old cast iron heads from the 60s and the later smog-restricted heads. TLDR at the bottom As I understand, the heads are one of the most determining pieces of the engine in terms of power and torque production, along with the cam and compression ratio (~10. The economical "As-Cast" aluminum versions feature ultra-smooth 356-T6 casting, precision machining, and an array of 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. mbkj jqkjqgj blzv tjfpxf fbbodd qpkvwra htj dbxg bpazp stwk