MerCruiser 807988-C 807988A2 Closed-Cooling Exhaust Riser 5.7L 350 7.4L 454 Pulley - Crankshaft Mercury 6hp - 2cyl (1961-1968)

Mercury 6hp - 2cyl (1961-1968) KB-6A / KB-6B / KB-7B

Overall with ends is about 14 1/4

For 1984-1993 the OMC part number is referenced as 983874 / 0983874 and is usually stamped with the GM part number of 14095286 Early OMC versions of this were typically stamped 910840 / 0910840 or 983064 / 0983064 (1982 & 1983) rather than having the GM stamped number

Mercury 64106 / 76303 Water Jacket Baffle Cover (Stamped 76302) Found on Mercury 850 4cyl 85hp 4cyl outboards SN 3493913-4366801 (Roughly 1973-1975ish)

ANGLED MOUNT - 10 Degrees

MerCruiser 807988-C 807988A2 Closed-Cooling Exhaust Riser 5.7L 350 7.4L 454 Pulley - Crankshaft Mercury 6hp - 2cyl (1961-1968)Part Number(s) Included MerCruiser 807988 C Exhaust Manifold Riser (You get the SINGLE RISER as pictured) Superseded Equivalent Possibly Related P N: 807988A2 807988A03 From a Closed Cooling Setup, (No front water inlet, scaling on the inside) General Application Compatibility Specifically, ths particular riser was from a Closed Cooling Configuration from 1996 1998 as it doesn't have a fitting on the front for a water hose 5. 0L 305 5. 7L 350 260hp 7.