Allstar Performance Ring & Pinion GM 7.5" - Ratio: 3.42 Bung and Plug Kit 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)

Built-in automatic transmission coolers

AFR's performance cylinder heads have been certified emission legal

Constructed in Italy using the latest techniques

Scoops are molded from durable high-impact plastic with carbon fiber look and have a molded-in flange for easy mounting

Allstar Performance Ring & Pinion GM 7.5" - Ratio: 3.42 Bung and Plug Kit These cylinder heads feature aQuality differential components are suitable for race, street, and off road use. Lapped in matched sets for quiet operation. 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 Performance.