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Fitting ports are 1/8"NPT
E85 / Gas / Diesel
and bottoming out through the use of massive 7-inch
8 AN Male O-Ring Swivel to 10 AN Male O-Ring
Spread port heads only come with a Stahl bolt pattern
Allstar Performance GM 7.5" Ring and Pinion Gear Set - Ratio: 4.10 RU004004S Fitting ports are 1/8"NPTQuality 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.