• 1968-1987 Chevy/GMC 1/2-Ton, 3/4-Ton, 1-Ton 1500, 2500, 3500 Trucks
• 1969-1987 Blazer, Jimmy, Suburban, Tahoe, Yukon
• 1968-87 Chevy/GMC 1-Ton 3500, Crew, Standard Cab Dually

Notes:

• Fits D-Port cylinder heads, including ZZ4 crate engines
• Will fit most angle plug heads, including factory Chevrolet Bow Tie Heads
• Non catalytic converter equipped
• Installation requires left side A/C Bracket #776-H7608 (1979-Later vehicles with short compressors can use stock bracket)

Emission Code:

• The product accompanying this document is legal only for off-highway use (except in California or states that have adopted California emission standards), racing use or for use on pre-emission-controlled motor vehicles/motor vehicleengines (pre-1974 domestic vehicles certified to California standards, pre-1974 domestic vehicles certified to federal standards and all pre-1974 foreign vehicles), per the manufacturer's application guide.