GM Small Block Exhaust Manifold Mounting Kit | Sierra 18-8502 Analog Meters Standard Main Jets

Standard Main Jets

NAUTICAL SPECIALTIES Back up Seal for Dry Seal EX-134

339-7452A15

142 Degree Thermostat | Crusader R026002E

mold and UV resistance

GM Small Block Exhaust Manifold Mounting Kit | Sierra 18-8502 Analog Meters Standard Main JetsGM Small Block Exhaust Manifold Mounting Kit Sierra 18 8502 Includes exhaust manifold to head gasket & mounting hardware for OMC GM 5. 0L & 5. 7L marine engines from 1979 1989. OMC exhaust manifold mounting kit For OMC GM 305 and 350 CID marine engines from 1979 1989 Used with Sierra 18 1931 1, 18 1902, 18 1903, and 18 1986 1 manifolds Includes exhaust manifold to head gasket, six manifold mounting studs, washers, and nyloc nuts Replaces Osco 244 MK