Thread: Markings on 350 Chevy engine.
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06-16-2011 09:05 PM #1
Markings on 350 Chevy engine.
I've mentioned that a couple of years ago I bought a Camaro drag car and pulled the engine and drivetrain before scrapping the rest. I am pretty sure that the engine only had break in time on it, from the way things look, but they must have done it wrong because one lobe on the solid lifter cam was gone and the lifter was shot. I have the engine torn down and am going to have some clean up work done on it before I start reassembling it.
From the numbers stamped on the bellhousing area (3970014) I know it is a 1970-73 4 bolt main block. When I tore it down I found a drilled forged crank, rods with some markings on them that I need to check out better, and forged 20 over flat top pistons. The rotating assembly was balanced ( I can see the grind marks on all the parts) and the engine had World Product Sportsman heads with Harlan Sharp roller rockers.
What is puzzling to me are the markings that are stamped on that pad on the front passenger side of the block. Instead of the usual ones, here is what I see:
D-350 3.48 crank
2244P.02
5.7 Rod
To me those marks look like they were stamped by some engine builder. I think this was someones crate high performance motor as it has a Fluid damper, SFI flexplate, Moroso deep pan, Weiand electric water pump, MSD billet distributor, and a few other goodies. Do those marks indicate what I am thinking, that those were put there by the builder? I can figure out the 3.48 crank thing and the 5.7 Rod part, but what do the other numbers seem to indicate?
Don
Welcome to CHR. I think that you need to hook up your vacuum advance. At part throttle when cruising you have less air and fuel in each cylinder, and the air-fuel mixture is not as densely packed...
MSD 8360 distributor vacuum advance