Sierra Manifold Riser Spacer - Mercruiser S18-1908

Replaces 93320
Mercruiser GM V6 229 and 262cu.in.
(Models 185 and 205),GM Small Block V8 305-350cu.in. (Models 200, 228, 230, 260 and 898),
GM Big Block V8 454cu.in.
(Models 330, 340 and 7.4L)
Used with
Manifolds S18-1952-1, S18-1953-2, S18-1957-2