1979 Oldsmobile Cutlass Supreme Engine and Transmission Swapping?

Asked by Apr 18, 2015 at 06:04 PM about the 1979 Oldsmobile Cutlass

Question type: General

I have a 1979 Oldsmobile Cutlass Supreme with a 4.3L 260 V8 Engine. I was wondering what kind/size of transmission did they install with the 260 engine?
Also if I change to a 350 engine what kind/size of transmission would I need and would I need to change anything else other then the transmission like Drive-Shaft, Differential, etc.?

6 Answers

7,615

A 350 engine will use a 350 or 400 trans. The trans cross member may have to be readjusted and the motor mounts will have be swapped out. The drive shaft might work, you'll have to do some measuring.

1 of 1 people found this helpful.
Best Answer

That answers a few of my questions but what about my differential there in the back. Will I have to have that swapped as well?

7,615

If you intend playing hard with it then yes.

1 of 1 people found this helpful.

I dont intend on playing hard with it. Just trying to restore and bring the car back to life. Figured a new or reman. engine and transmission couldnt hurt just wasnt sure of everything else Id have to change as well if I was to throw in a different engine and transmission.

A TH350 with the BOP bolt pattern will fit without modifications, the TH200M was the original transmission installed with this engine

69,665

A TH400 would be the best choice for a transmission but if you are restoring the car and not hot rodding it why don't you keep it original? If you want more power the stock engine could be upgraded without a lot of trouble.

Your Answer

Add photo

Related Questions

  • 1979 Oldsmobile Cutlass Supreme Engine and Transmission Swapping? 6 answers

    I have a 1979 Oldsmobile Cutlass Supreme with a 4.3L 260 V8 Engine. I was wondering what kind/size of transmission did they install with the 260 engine? Also if I change to a 350 engine what kind/siz...

    1979 Oldsmobile Cutlass

    -

    General

  • 1979 Oldsmobile Cutlass Supreme Engine and Transmission Pricing? 2 answers

    Wondering how much a 350 engine and 350 transmission will run me? Also how much would one estimate the cost would be to have both put in?

    1979 Oldsmobile Cutlass

    -

    Shopping & Pricing

  • 1968 Cutlass Transmission Identification 2 answers

    Trying to figure out what transmission I have on my 68 cutlass. Originally I thought I had a th350 but I swear I'm counting 14 bolts on the tranny pan which would make it a powerglide. The serial ...

    1968 Oldsmobile Cutlass

    -

    General

  • 85 cutlass eng. Trans. Swap 3 answers

    I have an 85 cutlass 2 door salon with a 307 4brl and I believe something like a 210 ? Transmission. Not sure as I'm not GM savvy. I would like a Oldsmobile 350 in it. I bought a 1977 4 door Delt...

    Oldsmobile Cutlass

    -

    General

  • Vins for 1972 Cutlass 8 answers

    I am in the market for a 72 cutlass. There are so many cloans that I want to be able to identify what the car was born as. What part of the VIN identifies supreme, 442 and all the other models and...

    1972 Oldsmobile Cutlass

    -

    General

Cutlass

Looking for a Used Cutlass in your area?

CarGurus has 123 nationwide Cutlass listings and the tools to find you a great deal.

ZIP:

Search Oldsmobile Cutlass Questions

Oldsmobile Cutlass Experts

#1 F_O_R
F_O_R
Reputation 160
#2 bluRAYwhale
bluRAYwhale
Reputation 100
#2 Js08016
Js08016
Reputation 100
View All

Related Models For Sale

Used Oldsmobile Cutlass Supreme
110 listings starting at $1,995
Used Chevrolet Camaro
354 Great Deals out of 31,416 listings starting at $2,400
Used Chevrolet Monte Carlo
12 Great Deals out of 1,427 listings starting at $995
Used Ford Mustang
698 Great Deals out of 44,786 listings starting at $1,500
Used Chevrolet Corvette
220 Great Deals out of 22,190 listings starting at $3,850
Used Chevrolet Impala
602 Great Deals out of 35,644 listings starting at $899
Used Dodge Charger
525 Great Deals out of 28,799 listings starting at $2,500
Used Buick Regal
163 Great Deals out of 10,573 listings starting at $4,000
Used Pontiac Firebird
13 Great Deals out of 756 listings starting at $2,995
Used Dodge Challenger
261 Great Deals out of 22,532 listings starting at $7,995
Used Buick Skylark
90 listings

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.