MerCruiser 140hp 3.0L .030" Oversize Pistons 4cyl 1491H-030 Silv-O-Lite 1972-89 Pulley - Crankshaft For the most part it

For the most part it seems these parts were used from 1976-1982 on 470 models that used a 3" Heat exchanger ****(not the larger 4" model)****

All of the GM V6 & V8 Engines 1983-1985 (and also 3

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312185 / 0312185 Rear Latch 0330252

275000056 Oil Gauge Neck

MerCruiser 140hp 3.0L .030" Oversize Pistons 4cyl 1491H-030 Silv-O-Lite 1972-89 Pulley - Crankshaft For the most part itPart Number(s) Included Silv O Lite Cast Dish Pistons 1491H 030 (0. 030" Oversize) Piston & Pin Assembly (Set of 4 As Pictured) THESE ARE 0. 030" OVERSIZE PISTONS You can get all of the information in Silv O Lite's catalog (Page 87) Connecting Rods (also included as pictured) and I'd imagine they are still the OEM GM ones from the 1972 1989 time period General Application Compatibility These were from a mid MerCruiser 3. 0L 140hp 181CID These would