MerCruiser 816900-C Exhaust Manifold Riser Stainless 454 V8 350 5.7L 7.4L Pair Risers this probably dates to the

this probably dates to the 1970's): MerCruiser

Will work with most outboards and I/O Sterndrives

I'm not sure how long this has been sitting

8L 351 OMC Cobra and Volvo Penta Engines 1989-1996 before they switched over to TBI

3LX with a 10-bolt metal timing cover and NON-ROLLER rocker arms but some of the parts here were used until the late 1990's on other 4

MerCruiser 816900-C Exhaust Manifold Riser Stainless 454 V8 350 5.7L 7.4L Pair Risers this probably dates to thePart Number(s) Included MerCruiser 816900A5 816900 C Stainless Exhaust Manifold Riser (You get the PAIR as pictured) Superseded Equivalent Possibly Related P N: 8169000A111 One of the risers has the provisions (studs) for the Ignition amplifier General Application Compatibility For the most part, MerCruiser GM SBC & BBC V8 applications but the brass elbow on front is different) 1987 1997 using "Wet Joint" Stainless Exhaust risers Stainless exhaust