4 Results Found For "shock"

Whether you race Pro Stock, Super Comp, or just want to rebuild your old Chevy 350 small block, there are cylinder heads just for you! Performance cylinder heads enhance...

Whether you race Pro Stock, Super Comp, or just want to rebuild your old Chevy 350 small block, there are cylinder heads just for you! Performance cylinder heads enhance the airflow into your engine, giving you improved power and torque. Bolt on a set of fully assembled cylinder heads for instant power gains or custom build your engine’s top-end around a set of bare castings! Plus, you can turn up the horsepower even more by choosing cylinder heads with CNC-ported runners and chambers, CNC-profiled chambers, raised exhaust runners, and other enhancements. From budget-friendly cast iron cylinder heads to lightweight...

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PROMAXX Performance Shocker Series Small Block Ford Cylinder Heads

PROMAXX Performance Shocker Series small block Ford cylinder heads are as good as it gets for performance heads. They feature ultra-smooth 356-T56 aluminum casting, and professionally designed runners and chambers that are meticulously CNC-ported. These heads flow over 328 cfm to easily support 725-plus horsepower. Shock the competition without breaking the bank by ordering a pair of PROMAXX Performance Shocker Series small block Ford cylinder heads. They are available assembled and bare. Features, items, and specs: * 210cc fully CNC-ported intake runners * 5-angle valve job * Diamond-honed bronze guides * Large spring pockets * Multiple spring options * Assemblies include 21-4N stainless one-piece, swirl-polished, back-cut valves, studs, and guide plates

5.0 out of 5 stars ( 1 )

$1,792.00

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$2,500.00

PROMAXX Performance Shocker Series Ford FE Cylinder Heads

PROMAXX Performance Shocker Series Ford FE cylinder heads are exactly what the Ford FE community have been missing. They start with an ultra-smooth 356 T-6 aluminum casting which is then fully CNC-ported by Keith Craft Racing, making is a definite high-performance player at a price that will destroy the competition. These heads support flow over 350 cfm to easily support any high-horsepower build. Shock the competition without breaking the bank by ordering a pair of PROMAXX Performance Shocker Series Ford FE cylinder heads. Features, items, and specs: * 200cc fully-ported runners * Professionally ported by Keith Craft Racing * 5-angle valve job * Diamond-honed guides * Large spring pockets * Multiple spring options * 21-4N one-piece swirl-polished back-cut stainless steel valves

Not Yet Reviewed

$2,399.00

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$2,980.00

PROMAXX Performance Shocker Series Small Block Chevy Cylinder Heads

PROMAXX Performance Shocker Series small block Chevy cylinder heads are as good as it gets for 23-degree performance heads. They feature ultra-smooth 356-T56 aluminum casting, and professionally designed runners and chambers that are meticulously CNC-ported. These heads flow over 325 cfm to easily support 725-plus horsepower. Shock the competition without breaking the bank by ordering a pair of PROMAXX Performance Shocker Series small block Chevy cylinder heads. They're available assembled and bare. Order the model with options recommended for your year/make and engine application. Features, items, and specs: * 225cc fully-ported intake runners * 5-angle valve job * Angle or straight plug * Diamond-honed guides * Large spring pockets * Multiple spring options * Assemblies include 21-4N one-piece swirl-polished back-cut valves, studs, and guide plates

1.0 out of 5 stars ( 1 )

$2,020.00

PROMAXX Performance Shocker Series Big Block Chevy Cylinder Heads

PROMAXX Performance Shocker Series big block Chevy cylinder heads are professional designed cylinder heads utilizing the latest CNC porting tools and techniques. These heads out flow the competition at a price that cannot be touched. 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. Shock the competition without breaking the bank by ordering a pair of PROMAXX Performance Shocker Series big block Chevy cylinder heads. Features, items, and specs: * 340 or 370cc fully-ported runners * 5-angle valve job * 24 degree intake valve and 15 degree exhaust valve * Diamond-honed guides * Large spring pockets * Multiple spring options * 21-4N one-piece swirl-polished back-cut stainless steel valves

5.0 out of 5 stars ( 1 )

$2,367.00

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$3,968.00

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