SBC Coated Headers - 78-88 GM G-Body

Long Tube Headers for 1977-87 GM A/G-Body V8 applications, designed for higher RPM horsepower and increased mid-range torque. Features 1 5/8" Primary Tubing Diameter, 3" Collector Port Diameter, and Oval Port Shape. Fits Factory Installed Chevrolet 265-350 small block engines. Fits most angle plug heads and D-Port cylinder heads (including ZZ4 crate engines). Will not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines. May require removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608 (1979 and later vehicles with short compressors can use the stock bracket). Must use non-shell type motor mounts.