(Moderator, feel free to move this)

My brother Jack has a '71 Chevy 1/2 ton long bed with we think is the original 350 V8. It has been in his wife's family since new. As far as we know, the engine has never been opened up.

We pulled the oil pan today so we could stop oil leaks at the pan and the rear seal. After I left, Jack pulled the oil pump and found this mess in the sump screen. Plastic bits and pieces.

I know Pontiac used plastic/nylon on their cam sprockets in the late 60's/early 70's. Did Chevy do the same?
Attachments
Plastic.jpg (143.11 KB, 72 downloads)

Last edited by Bill Hanlon; 11/09/2025 11:55 PM.
'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12
'52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.