Designed for Tuned Port Injected (T.P.I) 5.7L small block Chevy corvette engines originally equipped with center bolt valve covers, these performer cylinder heads are available fully assembled and ready to Bolt-On or bare for use with your own Valve train components. Features include high quality stainless steel 2.02 Inch intake and 1.60 Inch exhaust valves, 60 Cubic Centimeters combustion chambers and high flow 165 Cubic Centimeters intake and 65 Cubic Centimeters exhaust ports. The high velocity intake and exhaust runners are hand blended in the bowl area and the intake entries and exhaust exits are CNC profiled for increased Air-Flow. These heads include adjustable rocker stud and guide plate Set-Up for use with adjustable rockers. The casting is manufactured of A356 aluminum and heat treated to T6 spec for superior quality. An extra thick 5/8 Inch deck and Heli-Coil threaded inserts offer improved durability. Performer center bolt cylinder heads are 50 state street legal and accept factory center bolt valve covers. The intake bolt pattern utilizes the (straight) 90 Degree angle on the two center bolts
Applications
Intake And Exhaust Runners Are Hand Blended In The Bowl Area And The Intake Entries And Exhaust Exits Are CNC Profiled For Increased Air Flow
The Casting Is Manufactured From A356 Aluminum And Heat Treated To T6 Spec For Superior Quality
An Extra Thick 5/8 Inch Deck And Heli-Coil Threaded Inserts Offer Improved Durability
Limited 1 Year Warranty