Look what the 49 Chevy brought back for the 49 GMC.
PicPicPicPicThe numbers (3932388) say it's a 1969 350. It could be a 2 bolt 255HP or a 4 bolt 300HP engine as they both used the same casting number. The head numbers (3932441) say it could be a 69-71 350 with 1.94" intakes and 1.50 exhausts with a 76cc combustion chamber. Before they pulled it I went over and started it up, listened to it, saw 50psi oil pressure, temps staying around 185, no pings, no knocks, no smoke and no leaks.
It's been a daily driver for a couple years. The owner I bought the engine from doesn't know anymore than that. He bought the truck (72 C10) because the engine ran so good.
Apparantly not as good as the stroked 383 he's having put back in and bolting it to the TH350 thats still in it. Like me he may explore a 700R4 at a later date.
I'm going to guess it's been rebuilt at one time as it ran and sounded too good to be original. Mileage is unknown, his odometer showed 33K so it's either turned over or ran for a time with it disconnected, who knows....
He kept the VC's, starter, dist, alternator & bracket, Edlebrock 4bbl and fan to go on his new engine. So I'll be replacing those. Otherwise I'm just going to clean it up, give a good coat of orange paint, slap the TH350 I already have on it and fit it in the Jimmy.
I'm hoping I may be able to reuse the Jimmy's welded-on motor mount perches with a new set of clamshell motor mounts. I'll be knowing soon.
