Gasket replaces MerCruiser part # BARR STYLE CHV-47-0000
For Chevy 305/350
Gasket-Exhaust Manifold replaces MerCruiser part # 27-52546
For Chevy 4-Cyl. 153CI/2.5L/120HP
Exhaust Manifold Gasket replaces MerCruiser part # 27-46401
Chevy Inline 6-Cyl. 250CI/165hp