Mallory - Mercruiser V6 - 4.3L Manifold and Riser Kit. Fits GM block 4.3L V6 by Mercruiser.Kit includes Manifolds, Risers, Gasket Kits With Bolts See Parts Listed Bellow.
9-40505 Manifold quantity 2
9-40576 Manifold Gasket Kit With Bolts quantity 2
9-40559 Riser quantity 2
9-40578 Riser Gasket Kit With Bolts quantity 2