Racing Power Headers - 1-5/8" Primary - 2-1/2" Collector - Steel - Ceramic - SB Chevy M59C place the correct size feeler

place the correct size feeler gauge beneath the ground strap then tighten knob to set plug gap

Fits 1968-1972 GM A-Bodies with V8 engine

allowing the tubes to easily sit behind the front bumper

PRO Series 2inch x 2inch Latch & Link Restraints: Individual Shoulders

7/16 in Thread Studs

Racing Power Headers - 1-5/8" Primary - 2-1/2" Collector - Steel - Ceramic - SB Chevy M59C place the correct size feelerProduct Description: Headers 1. 625 in Primary 2. 5 in Collector Steel Ceramic Small Block Chevy Pair Started in 1995 and specializing in both aftermarket and OEM markets, the Racing Power Company offers more than 4,800 different parts, including valve covers, dress up kits, air cleaner assemblies, crankshaft pulleys, breathers, light assemblies, and more.