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Osco Manifolds, Risers & Elbows

 Sub-Categories
Mercruiser 110 - 120
Osco Manifold and Risers for the early model GM 4 cylinder 153 cu. in.
Mercruiser 120 / 140 / 2.5 / 3.0
Osco manifold and osco riser for Mercruiser 120 /140 / 2.5l /3.0l GM 4 Cyl 181 cu. in.
Mercruiser 165 / 200
Osco manifold and Riser for Mercruiser 165 / 200. GM in line six cyl. 250 and 292 cu.in.
Mercruiser 165 /170 / 180 / 190
Osco Elbow Reservoir for Mercruiser 165 / 170 / 180 / 190 mercruiser 4 cyl 224 cu.in. 3.7
Mercruiser 198 / 228 / 898
Osco Manifolds and Riser for Mercuiser 198 / 228 / 898
Mercruiser 200 / 228 / 230 / 260 / 898
Osco Manifold and Riser for Mercruiser 200 / 228 / 230 / 260 / 898 GM Small block V8 305 - 350 cu.in.
Mercruiser 215 / 225 / 233 / 255 / 888 Manifolds and Riser
Osco Manifolds and Riser for Mercruiser 215 / 225 / 233 / 255 / 888
Mercruiser 229 / 262
Osco Manifolds and Riser for Mercruiser 229 / 262 GM V6 229 and 262 cu.in.
Mercruiser 330 / 340 / 7.4
Osco Manifold and Osco Riser for Mercruiser 330 / 340 / 7.4 GM Big block 454 cu.in.