Apex AMS3227

Apex AMS3227 is an exhaust manifold gasket set for earlier Chevrolet 5.0 and 5.7 L V8 engines. It seals the manifolds to the cylinder heads and is intended to service both banks of the engine.

Application / fitment

The main application group includes Chevrolet Small Block/Vortec 305 CID / 5.0 L and 350 CID / 5.7 L engines used in GM vans, pickups and SUVs from approximately 1996–2002. Catalogue listings also include selected 1982–1991 5.7 L Corvettes.

• selected Chevrolet and GMC C/K 1500, 2500 and 3500 with 5.0 or 5.7 V8 engines
• selected Chevrolet Tahoe, GMC Yukon and Suburban 5.7 V8 applications
• selected Chevrolet Express and GMC Savana 1500/2500/3500 with 5.0 or 5.7 V8 engines
• selected Chevrolet P30 and GMC P3500 5.7 V8 applications
• selected first-generation Cadillac Escalade 5.7 V8 applications
• selected Chevrolet Corvette 5.7 V8 applications from 1982–1991

This set is not equivalent to AMS3711 for LS engines. Transitional model years require verification of engine generation, engine code, exhaust-port shape and manifold bolt arrangement.

Technical information

• part type: exhaust manifold gasket set
• location: exhaust manifold to cylinder head
• primary engines: Chevrolet 305 CID / 5.0 L and 350 CID / 5.7 L V8
• family: classic Small Block and selected Gen I Vortec engines
• repair coverage: both cylinder banks
• mounting hardware: not included unless stated on the package
• sales unit: 1 engine set

Remove all old gasket material, check manifold flatness and inspect the fasteners before assembly. Incorrect tightening can cause leakage or manifold distortion.