MerCruiser 98503 98504A3 V6 V8 4.3 5.7 305 350 3" Single Exhaust Manifold Riser 60hp you can see the faint

you can see the faint remainder of the blue paint

Gear Housing Gearcase Lower Unit Assembly Shaft is 21 1/2" from top of impeller housing

7L 350 170hp 175hp 165hp  1978 1979 1980

Possibly Relevant Chevy GM V6 V8 4

MerCruiser 98503 98504A3 V6 V8 4.3 5.7 305 350 3" Single Exhaust Manifold Riser 60hp you can see the faintItem Details MerCruiser 98504A3 Exhaust Mainfold Elbow Riser Assembly AS THIS IS A QUANTITY LISTING, YOU WILL RECEIVE A RISER in equal condition to the one pictured here Stamped 98503 Cleaned & Repainted No cracks or welds Overall good condition Used on various MerCruiser V6 & V8 applications from 1981 1987, but generally the early years. Please make sure the parts you are swapping with are stamped 98503 or 95755 These have 3" exhaust tube outlets