All GM LS Gen III or IV engines equipped with LS1/LS2/LS6 style cathedral port cylinder heads w/Black Ceramic Coating. 1500-6500 RPM power band 4150 Square bore flange Optimized runner layout and constant cross sectional area - broad torque curve, best vehicle performance from 1500-6500 RPM Minimum carb flange height means it fits in vehicles with minimal or no hood modifications Great for carbureted or throttle body EFI street applications Cast aluminum construction and efficient casting design for light weight, consistent wall thicknesses and improved casting quality Weighs 15.14 lbs. Height (front) - 5.07" from front lifter valley cover to carb mounting flange Height (rear) - 6.14" from rear lifter valley cover to carb mounting flange Port size - 2.72" height x 1" wide Mounting flange gasket type - O-ring Includes Viton???›?�? O-rings - Viton???›?�? is a registered trademark of DuPont Performance Elastomers
All warranty questions, claims or otherwise should be directed toward the manufacturer
