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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. Dyno results show 20 to 35 hp gains over the competition. This combined with our 5 angle competition valve job, diamond honed bronze guides, hand bowl blending and assembly by our professional builders right here in the u.s.a produces out of box performance that out performs the top brands in the industry
PROMAXX Performance Products
Promaxx performance continues to evolve with the project x lineup and has raised the bar on the competition Machined and assembled in the usa There is no as cast head on the market that can outflow these heads period!
About promaxx performance we are a family owned business that began in 2012 by purchasing the remnants of patriot performance and alabama cylinder head exchange
We specialize in all types of cylinder heads, from diesel to performance Our performance line has become a passion. Unlike most of our competitors, we don’t offer different quality cnc designs At promaxx, we provide our elite series at prices that make our competition cringe
Going fast doesn’t have to break the bank, so get a pair of shocker cnc series heads today Now go out and shock the competition! The shocker cnc 340cc bbc is a professional designed cylinder head using the latest cnc porting tools These heads out flow the competition at a price that cannot be touched
Some comparable heads are double the cost of one shocker 340 cnc
Flowing over 415 cfm, this head is on top of the heap Now go out and shock the competition. The maxx 290 is truly a rare breed in today’s market An as cast head that is just as efficient as competition’s cnc ported pieces
Independent flow bench testing shows over 400 cfm with 2.300 valves This head will change the industry Compare to any brand, this head makes power! At promaxx, we provide our xxtreme series at prices that make our competition cringe
Going fast doesn’t have to break the bank, so get a pair of xxtreme series heads today.
The sbf maxx 180 is an as cast head that beats the competition Don’t let the size fool you, flowing over 260 cfm, this head makes real power It puts out up to 20 hp over the competition. The 185cc series 1 heads are perfect for that budget build
Making great power at a price that cannot be matched
