Hedman Street Headers - 1.75 in Primary - 3 in Collector - Black Paint - Big Block Chevy - GM Fullsize SUV / Truck 1982-91 - Pair Weld Bung Universal fan clutches and spacers

Universal fan clutches and spacers have a 3/4" pilot hole

The tach drive assembly is compact to clear the firewall and linkage

75 in Diameter

It will also communicate with Terminator X / Terminator X Max and Sniper ECUs

Hedman Street Headers - 1.75 in Primary - 3 in Collector - Black Paint - Big Block Chevy - GM Fullsize SUV / Truck 1982-91 - Pair Weld Bung Universal fan clutches and spacersHedman Hedders Standard Uncoated Headers; 1 3 4" Tube Diameter; 3" Collector; Full Length Design Hedman Hedders Painted Hedders Exhaust Header 69280 Tube Size 1. 75 in. Collector Size 3 in. w o Injection Heads Smog Injection Highest Quality Materials Computerized Precision Hand Tested; Sturdy Leak Proof Welds Durable And Affordable Hedman Hedders has been manufacturing quality headers and exhaust components in the USA since 1954. Hedman Hedders