Hedman Headers - 1.75 in Primary - 3 in Collector - GM LS-Series - GM A-Body 1968-72 - Pair MT120BK Adjustable length kit contains all

Adjustable length kit contains all the necessary components for pedal engagement and height adjustment for most common types of installations

28 in W x 19 in H x 3 in D

Included is our 3200 rpm governor spring to extend the engine rev range by and 700 rpm

#4277 are designed to clear most roller rockers on factory cast iron and Edelbrock cylinder heads

Hedman Headers - 1.75 in Primary - 3 in Collector - GM LS-Series - GM A-Body 1968-72 - Pair MT120BK Adjustable length kit contains allHedman Hedders Hedman Headers 1968 72 Chevelle El Camino (And Related A Bodies) Ls Swap Headers; Auto Transmission; 1 3 4" Mid Length Tube; 3" Ball Socket Collector Uncoated Hedman Hedders has been manufacturing quality headers and exhaust components in the USA since 1954. Hedman Hedders Hedman Headers 1968 72 Chevelle El Camino (And Related A Bodies) Ls Swap Headers Auto Transmission 1 3 4" Mid Length Tube 3" Ball Socket Collector Uncoated Vehicle