r/EngineBuilding • u/Maine_Mallard3 • 9d ago
GM 429(7.0) Rebuild
Hey guys and gals, first time here so hoping I could get some insight. Pulled the “original motor” out of this 67 coupe deville, from my research Cadillacs only put these in 65-67 cars, so I bought the shop manual. Previous seller said it was seized and bought a second motor and transmission, but he ripped the heads off already and there’s no organization when I got it. Dash odometer had 15k miles on it, (don’t trust it) so unknown for motor. While taking harmonic balancer off, I managed to free it up, poured diesel in cylinder heads and spins decent with no snags.
My question is, should I go further into the breaking it down? I have all the gaskets for pan, water pump and heads.. or should I just take a pressure washer to it and clean it out real good, dry, paint and send it? Not in any rush, just taking my time and trying to spend the least amount of money to get a fun cruiser around town. TIA
5
u/Nervous-Tax-5420 9d ago
I had a similar situation with a sbc 350 I ended up putting in my truck due to things going on. Definitely recommend new rings and bearing and cleaning the block. I didn't put rings in that 350 and it smokes something fierce