Decided to start with the engine on my 54 GMC 150 truck, then work my way towards the transmission, rear end, brakes, etc.
I can turn the 54 Chevy 235 engine by hand and noticed it stops about halfway, assuming I have a stuck valve. Going to remove the valve cover and side plate to see what is stuck. Any suggestions to freeing stuck valves and/or lifters? Not sure if solid or hydraulic. Once I can spin the engine freely, I'll do a compression test and go from there. Was sitting since early/mid 70's. Don't want to ruin the engine by mistake.
I have the original 248 GMC engine already torn apart and looking for manuals and rebuild kits, etc.
TIA
