Fits 1965-1990 Chevrolet 396-454 Big Block. Round Ports, 1.85 Inch x 1.90 Inch GM Cars/Trucks " allowing you to install this

allowing you to install this piece in minutes rather than hours

Country of Origin USA Sold As Pair UPC 840269910623 Availability Available Location Driver Side Location Passenger Side Universal No Cab Size Crew Max Capacity 465 Lbs Drive 2WD Drive 4WD Mount Style No Drill Step Size 3

6" Bar and plate core design that is 20% larger than stock

and a fast-cooling 54mm shock body for consistent performance in any condition

Fits 1965-1990 Chevrolet 396-454 Big Block. Round Ports, 1.85 Inch x 1.90 Inch GM Cars/Trucks " allowing you to install thisMr. Gasket Performance Header Gaskets are manufactured from a heavy duty high temperature material, . 062 inch thick, consisting of an acrylic binder system to resist high temperature. Provides excellent sealing and durability with maximum torque retention to eliminate gasket failure. While precision die cut for an excellent fit, it can be trimmed if necessary for modified port applications. For original equipment replacement, higher performance