Availability
Great cylinder head airflow has been a key enabler of the LS-Series' exceptional performance. Chevrolet Performance delivers those power-building attributes to you with a range of production-style aluminum heads. From the LS6 heads for smaller-displacement engines, to LS7 style heads for 427 in. and-larger combinations, these bare cast aluminum heads benefit from extensive research and development—ensuring maximum airflow without compromises. In fact, many professional builders use these heads as straight bolt-ons with no further machining. The engine cylinder heads are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These replacements are the true OE parts installed during the production of or validated by GM for select vehicles. LS7 CNC-ported cylinder head assembly notes: * 356-T6 aluminum head * Fully CNC'd ports and chambers * LS7 rectangle port design * Minimum 4.100 in. bore * 270cc CNC'd intake ports, 85cc CNC'd exhaust ports * 70cc CNC'd combustion chambers * Capable of over 600 hp Aluminum LS family head technical notes: * Manufactured from 319-T5 aluminum alloy * High-efficiency combustion chambers * Symmetrical intake and exhaust ports * Angled spark plugs (14mm; 5/8 in. hex; 3/4 in. reach; taper-seat plugs) * 15 degree valve angle (except C5R and LS7) * Bolt-down-type rocker arms (except LSX-DR, LSX-CT) * Centerbolt valve cover hold-downs * Fits Gen III and Gen IV small blocks only NOTE: Chevrolet Performance heads will not fit 4.8L and 5.3L engines, due to their smaller bore sizes.
Not Yet Reviewed
$3,234.74
Chevrolet Performance LSX-SC cylinder heads are developed for big-boost levels and high-horsepower engines. Undergoing a Hot Isostatic Pressing (HIP), this process is a way of casting that removes the air pockets while improving the mechanical properties of the components. LSX-SC cylinder heads are the same ones you'll see on Chevrolet's COPO 350 engine. They're available in three different configurations: as-cast; bare with CNC-machined features; or fully assembled CNC-machined cylinder heads complete with valves and springs. Features and benefits include: * Signature LSX 6-bolt head-clamping pattern * Increased deck thickness from 0.650 in. to 0.750 in. * Exhaust face thickness increased from 0.177 in. to 0.300 in. * Dense T356 aluminum material
Not Yet Reviewed
$2,203.43
Chevrolet Performance Gen V LT1 head cam kits will increase your already-strong LT1. With CNC-ported heads and a camshaft designed specifically for direct injection, these kits offer the first "Hot Cam" for the Gen V LT1. Your kit may include: * Camshaft * Valve lifter guide * Valve lifters * CNC cylinder head assembly Note: Recalibration is required for accurate engine operation.
Not Yet Reviewed
$3,702.92
Modal Header
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
