Sierra Exhaust Manifold Mounting Kit, 18-8502

The Sierra 18-8502 exhaust manifold mounting kit for OMC, replaces Mallory and Osco.

Key Features:

• OMC GM Small block V8 305-350 cu. in. (1979-89)
• OMC/Volvo GM Small Block 305-350 cu. in.

Use With:

• 18-1902: Manifold
• 18-1902: Manifold
• 18-1903: Manifold
• 18-1931-1: Manifold
• 18-1986-1: Manifold