And these are what the results were.
1 = Chevrolet
Q = Sport Coupe
8 & 7 = 2 dr. Coupe
H = 350ci 2bbl
4 = model year: 1974
N = Norwood Assembly
103683 = number built that year
:bowtie:

It feels good to get all of those numbers sorted out so you know what you have and whats been changed. Is the car much different from what was original?

It's got a 600 CFM 4bbl carb on a 400 from a GTO :bowtie:

It's got a 600 CFM 4bbl carb on a 400 from a GTO :bowtie:
Are you saying that someone stuffed a Pontiac 400 into a '74 Camaro? Got pictures?

BTW, you should have a bigger carb than 600CFM on that thing

No, I'm saying that a Pontiac 400 came with it. It's out of the car right now, on an engine stand. I'm going to have it rebuilt this fall. It's the same size as any other GM small block, but the bore is different.

No, I'm saying that a Pontiac 400 came with it. It's out of the car right now, on an engine stand. I'm going to have it rebuilt this fall. It's the same size as any other GM small block, but the bore is different.
Then it is not a Pontiac 400. A Pontiac engine looks nothing like a SBC (well, except that the water pumps in the front and the distributor is in the back:) )

Pontiac ran their V-8 from 55-81, they are physically larger than a SBC - and nothing swaps between the two...If it is a corporate SB from the 81 and up era it would not be a 400 from the factory...I don't even think you can bore and stroke those things to get to 400 - but I could be wrong. To get to 400CID on a SBC requires a 400 block which has a different water jacket configuration...SBC 400 CID's were not installed in Pontiacs (or one of the custom after market blocks like the motown from World)

Here's a link to a pontiac engine site so that you can see the difference (even though it is painted red and not a Ponitac color)http://www.proformanceunlimited.com/specs/pontiac_400_325tk.html

It looks about the same, but I don't have any belt wheels, There's no water pump, it's not painted (just oily) and the intake is different. What's the bore supposed to be on the 400? I'll measure the cylinder diameter when I get around to taking the heads off.

can u post a pic of motor we can tell make...with a pic,,,,

fyi

Starting in 1972 Pontiac used the Chevy 307 in the Venture II; in 1977 they started to use the Chevy 305 and 350 in Ventura II and Phoenix, 1978 the 350 in the Firebird, as they phased out the Divisional engines for a Corporate Engine being the Chevy and its how it is today. It was painted black.

Similar thing with Olds and Buick. It caused a lot owners to become irate when they found out and there was a big class action lawsuit. There was a settlement given to those owners who got the lower status Chevy engine. GM never told buyers there were not getting a Olds, Buck or Pontiac Engine and that caused sales to slide on those models.

So a 1970's Pontiac, Buick or Olds can have a Chevy Engine.

can u post a pic of motor we can tell make...with a pic,,,,
I clicked on his car domain link...hadn't noticed it before...there are photos there. They are dark but I would say that the egnine in question is a SBC and not a Ponitac motor.

WS6: I knew about Olds engines going into some Pontiacs but had never heard of the SBC swap you just indicated...especially in firebirds...previously I had only been aware of the Firebird change with the introduction of the third gen. I know very little about Venturas (II or otherwise)

74camarodriver: Before you buy parts or get quotes for a rebuild you should figure out what you have...pull the casting numbers off the back of the block and if it is still there the engine suffix from the front pad

Well, there's a Pontiac 400 for sale for $300 that needs new head gaskets and a new distributer in my area. I might take a look at that. I've heard that a 400 destroked to a 377 makes a good high revver with a lot of torque. Any input on that?

I knew about Olds engines going into some Pontiacs

Chevy and Pontiac have always been closely aligned so they were the 1st make to start using the Chevy (aka Corporate) engine in 1972.

Buick and Olds followed in 1977. By the 80's, most engines were all Chevy made and called "Corporate Engine".

Even some Cadillac model were using Chevy engines in the 1990 and several to this date do. The CTS-V, STS-V, XLR-V series all use the LS2 vette engine. They still have unique engines, the Northstar for instance but those are going into Buick Lucerne CXS.

Ventura is the Nova clone.

I recall we had a 1977 Pontiac Parisian (full size) station wagon at work that the boss used and it had the Chevy 305 engine. I would always get into discussion with those who would not believe it, even when they saw it with their own eyes. Even the day I drove the car back from Lansing up to the UP, the boss was amazed it had a Chevy 305-4bbl engine. For a long time he did not believe but when it came time to change the oil, the dealer confirmed it.