I've been offered a secondhand bigger [of course] engine.
As far as i know its originally out of a Corvette, and the details ive been told are :eng ID 3970010 ( `69 -`74 350 cu. in.)

I know theres a mountain of Small Block interchangeability, but would it
a: go into my 83 T\A without much work
b: would it mate up to the 700r4 tranny.
c: If it does go in, i'm assuming the exhaust manifolds on my car will not fit this motor?
Heres hoping.

 

It will fit with no modifications, bolt up to the 700 and your exh. manifolds will bolt right up too.

 

Oh good thanks for that.
Well hes mailing me back with a price, and what the spec is, how sensible is GM making motors that just swap like that, marvellous.

 

Of course it is. EVERY Chevrolet motor is "out of a Corvette".

That's the oldest seller lie in the book. I hope you didn't pay extra for it because the seller was willing to tell that story to go with it.

That's an extremely common 350 block casting. Maybe the most common in fact. It was used in everything from 165 HP Impala sedans, to 180 HP Covettes, in the 70s. But since the block casting number has nothing whatsoever to do with the HP a motor puts out, hopefully it won't be too much of a handicap in your situation.

 

Yeh i can imagine it being a good line to throw about.
He only thought it was, its in his TA atm, as hes ordered a crate job. Its coupled to a Muncie 4 spd box atm, which i would'nt really want.
I have'nt parted with any money as he's going to have to give me a price first [and a cheap one preferably], as i only have a 305 [which i'm happy wizzing round in] it would be an increase HP wise even if it was only a basic small block 350.
Cheers for the heads up.

 

my 350 was out of a G20 Vette

 

My 350 came out of a guy's backyard.

He said it came out of a Chevelle.

I said I didn't care because it was a 4-bolt and had yet to be punched over.

Cost me $100

 

There are 2 things to watch out for in swapping it into your car:

One is the starter bolt holes. There is a set of holes that MUST BE USED for a 12.8" (153-tooth) flywheel. This bolt pattern did not exist before about 1977 or 78. Any block made before that, most likely doesn't have it. If you have to use a 153-tooth flywheel (for example, ANY T-5 setup will need that) then you will HAVE TO have the missing bolt hole drilled in it. The hole in question is about 5/8" inboard of the inner hole on the earlier blocks. You CANNOT bolt a starter on using the farther-out bolt hole, because in order to make contact with the smaller flywheel, the starter shaft must be moved inward far enough that a bolt in the old hole will have to go RIGHT THROUGH THE MIDDLE of the starter drive. So don't believe anybody that tells you that this or that or the other starter "ought to" work, because it won't.

The other is the oil dipstick. The older block has the dipstick hole on the left-hand side of the block, which is incompatible with exhaust manifolds. Headers solve that.

 

Thats buggered it a bit then, thought it sounded too easy, but thats why i'm glad i come here.