Sealed Power Speed-Pro H518CP 30 .030" Piston Set V8 454 7.4L GM Chevy 1981-90 Risers 271-000-085 Inlet Grate Guard

271-000-085 Inlet Grate Guard

Also used with the remote Mercury Trim Pump units

Also found on some 650 65hp 4cyl outboards (SN 2309311-2803561)

Fuel Pump Body: 377113

Specifically Serial Numbers 3780850 & Up

Sealed Power Speed-Pro H518CP 30 .030" Piston Set V8 454 7.4L GM Chevy 1981-90 Risers 271-000-085 Inlet Grate GuardPart Number(s) Included Sealed Power Speed Pro (Federal Mogal) Pistons H518CP 30 (0. 030" Oversize) Piston & Pin Assembly (Set of 8 As Pictured) THESE ARE 0. 030" OVERSIZE PISTONS I'm assuming you have already done your research on these. All the details for the HP518CP piston are widely available online. Connecting Rods (also included as pictured) I am unsure if this are OEM GM or aftermarket. General Application Compatibility These would apply to