This Manifold and Riser Kit is Direct replacement (exact) for mercruiser carb only. The hole pattern on the manifold is designed for the merc carb only. This cannot be used on a Vortec Engine. It will cause catastrophic failure.

The log style kit includes:

• 2 - Manifolds: MC-1-99798
• 2 - Risers: MC-20-12076
• 2 - Spacers: MC-20-61851A3
• 2 - End Plates: 1-60252, 1-99179
• 2 - Front end plate mounting package : 1-60252P
• Plus all gaskets and hardware.