Help me figure it out

[SickAss 62 C10]

So what am i looking at a pontiac 400 or a 350 GM still not 100% sure.But it runs,only thing is it feels like the tranny is not sifting right. trying to do most of the work myself but i might have to take this one in.

[luvbowties]

Nice-looking ride. And either Pontiac engine, 400 or 350, is a great one to have in your sharp '62. I lived via a used car lot, and the worst problem I found from the 400 or the 350 was they were capable of clocking up too many miles before the customer needed to trade again! A fact!
Sam

[frankslagoon]

Originally Posted by SickAss 62 C10

So what am i looking at a pontiac 400 or a 350 GM still not 100% sure.But it runs,only thing is it feels like the tranny is not sifting right. trying to do most of the work myself but i might have to take this one in.

Get the numbers off the front of the blk on the pass. side I think and I'll look it up I can't send ya the spec. sheet but I'll look for ya.

[SickAss 62 C10]

ok so the only numbers are front pass. 106083 just under is ZA. On the heads 4C and GM12. On the intake is large letters XC.
I'm almost ready to pull this whole engine clean it up and find all these dam #'s

[buds56]

You have a 74 350 Pontiac originally a 2 barrel engine.
This site will help ID Pontiac engines http://www.wallaceracing.com/engine1.htm
That's a pretty nice truck, I would imagine it runs pretty good.

I'm going to put in a 400 Pontiac in my 61 project, but that's a ways off yet.
Good luck, Bud

[SickAss 62 C10]

Thanks very much EVERYONE perfect timing. my investigation with all your guys help came up with just that. looks like a 1974 Pontiac 350 with what could be a 1977 intake to change it over to a 4 bbl. i was also told they bored it out to a 400 ,finding that out is another can of worms. but one quick question is the TH400 tranny a 3 speed or ?

[SickAss 62 C10]

hey buds56 haven't really ran it. still not 100% confident in the brakes yet. sounds great in the driveway. haha

[Softpatch]

it's a P,O,B, TH400 and a chevy trans wont bolt up to ther poncho
that is very cool eng I have heard some of are trucks had Pontiac motors in them
.
....Sp
.
.

[frankslagoon]

Originally Posted by SickAss 62 C10

Thanks very much EVERYONE perfect timing. my investigation with all your guys help came up with just that. looks like a 1974 Pontiac 350 with what could be a 1977 intake to change it over to a 4 bbl. i was also told they bored it out to a 400 ,finding that out is another can of worms. but one quick question is the TH400 tranny a 3 speed or ?

Well I checked numbers also. a ZA block could be a 1973 455 1974 350 2 bll. or a 1976 400 4 bll. look nexted to the dist. hole ,if ya can there are some letters and numbers , like maybe 5. the last number is the year. then ya should know?

[frankslagoon]

T H 400 3 speed.

[1Bad62Pro/Street]

Here's some good resources:
Online engine resources (casting numbers, calculators, etc.)
http://67-72chevytrucks.com/vboard/s...d.php?t=382583