Allstar Performance 1/2-20" RH Thread Jam Nut Steel Zinc Oxide - Set of 50 45 Degree Fittings Designed and manufactured in the

Designed and manufactured in the USA

These heads feature a 58cc combustion chamber (can be special ordered 55 to 65cc) with a 64cc exhaust port and a 3/4'' thick head deck (ideal for nitrous or blower applications)

Digital Gauge

Add to this the pleated back panel for freedom of movement

1994-2001 GMC Safari

Allstar Performance 1/2-20" RH Thread Jam Nut Steel Zinc Oxide - Set of 50 45 Degree Fittings Designed and manufactured in theAllstar jam nuts have many uses. Great for locking rod ends tightly on suspension tubes or rack and pinion steering units. Package of 50, unless noted. 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