Can I use the same transmission if i'm taking out a 305 engine and installing a 350.?

Question

I"m installing it on a 67 Impala. The 350 engine is an 350 HO Engine with 64cc chamber iron Vortec heads. Belief the 305 came out of an 77 chevy.

Answer 1

i own a repair shop,and yes you can,there the same bolt pattern,,just about the same block,all small block Chevy's will inter change ,but yes your going to be good on this one,,good luck i hope this help,s.

Answer 2

Probably.

GM V-8 engines are generally 90-degree deals (the Northstar V8's are sometimes 60-degree), and generally use the same bolt patterns, etc.

The reason I say "probably" is that during the 1970's, the GM motor divisions put, say, Olds motors into Chevys, etc. Some of those had different bolt patterns. If you have a "real" Chevy, then you're probably okay.

I found out about the different motor thing when I went looking for a Buick V8, and found out that I couldn't put a Chevy into my Buick unless I originally had a Chevy, or unless I wanted to change my tranny, etc etc

Answer 3

No problem. The powerglide or TH-350 are both pretty good tyranny's.
Don't know which you have. They're not as strong as a TH-400, so you may want to put some money away and eventually upgrade to a 5 or 6 speed manual or TH-400 auto.

Answer 4

Yes....but you may have to use a different torque converter. If you have a built engine, you may also need a higher stall in the torque converter.

Answer 5

well it depends if its a high performance transmission if its just the regular standard tranny i wouldnt do it cause that 350 will tear it up

Answer 6

o yea i did the exact same thing with my chevy pickup. beauty of chevys baby!

Answer 7

absolutely yes you can...that's the glory of old chevy's...almost everthing is interchangeable.

Go for it without any worries.

Retired old chevy man here...it will work trust me

Answer 8

Yes,I've done it.