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Help with suffix codes?

2394 Views 4 Replies 3 Participants Last post by  elcamino, 
R
I have purchased a 1971 Concours with a smoking (through the tail pipe)
350 Engine.
The casting number on this engine is 3970010 and the numbers stamped on the front is JIM5TJA Question: Is this the Engine that came with the car new? or something else?

Also I have another 350 engine with the same casting number 3970010 but it has 2 numbers stamped in the front (one above the other)
1. V0901TET
2.C9Z130932
This Engine I purchased from a wrecking yard sitting on the ground as a rebuildable 350 with a 4 bolt main.Anyone have any idea what this may have come out of?
Thanks for any help!
Ray
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E
Its probably TFT as there does not appear to be a TET

TFT is a 1979 Chevy truck 350-165 hp mated to TH350 trans with 4-bbl carb, RPO LS9

Z shows it was assembled at Ft Wayne assembly
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TJA is exactly the same engine for a 1979 truck but with a manual transmission instead of the TH350 automatic
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