Allstar Performance Exhaust Block Off Plates - GM LS-Series Engines SR91152PDO-5 These cylinder heads feature a

These cylinder heads feature a 65cc or 75cc combustion chamber with a 64cc exhaust port and a 3/4'' thick head deck (ideal for nitrous or blower applications)

Air Suspension SpringAir Lift Company has been developing air spring suspension products for more than 50 years

x 5/8" deep necks (dimensions are approximate)

This is a replacement parachute pack only

Allstar Performance Exhaust Block Off Plates - GM LS-Series Engines SR91152PDO-5 These cylinder heads feature aAluminum block off plates seal exhaust ports during engine storage or repairs. Plates help protect against moisture, dust, and dirt. Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of hard to find, specialty items that cover many segments in the performance aftermarket. For over 30 years, customers worldwide have come to rely on the quality, affordable and practical items available from Allstar