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Technical Forums >> Oldsmobile >> olds 307 to chevy 350 swap
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Message started by 86cutlass on May 14th, 2009, 11:01pm

Title: olds 307 to chevy 350 swap
Post by 86cutlass on May 14th, 2009, 11:01pm
I was thinking about swapping a chevy 350 into my 1986 oldsmobile and I was wondering what transmission I could use so I wouldnt have to get a new drive shaft.

Title: Re: olds 307 to chevy 350 swap
Post by Buzz on Aug 6th, 2009, 7:34pm
1. WHY not go with an Olds 350? or 403? 403's are also small blocks and bolt right in... and are cooler than an Olds/Chevy hybrid... and tire frying TORQUEY!

2. If you must go Chevy, the 200-4R w/ OD from an '86 & newer Monte or Pontiac GP goes right in with the same driveshaft... as does the 3-speed TH350 or TH 200 from an '85 and earlier...

Title: Re: olds 307 to chevy 350 swap
Post by veltboy618 on Oct 12th, 2010, 10:22am

BuzzLOL wrote:
1. WHY not go with an Olds 350? or 403? 403's are also small blocks and bolt right in... and are cooler than an Olds/Chevy hybrid... and tire frying TORQUEY!

2. If you must go Chevy, the 200-4R w/ OD from an '86 & newer Monte or Pontiac GP goes right in with the same driveshaft... as does the 3-speed TH350 or TH 200 from an '85 and earlier...

I heard you have to chop the drive shaft 3" for the 200R4

Title: Re: olds 307 to chevy 350 swap
Post by Buzz on Oct 12th, 2010, 10:48pm
.. You should already have a 200-4R... it may be dual bolt pattern: BOP and Chevy... 8-)

Title: Re: olds 307 to chevy 350 swap
Post by Rustynail on Aug 27th, 2012, 12:38am
what trans do you have in your ride now? a 200 over drive ? or a turbo 350 ? :-? if your goin to cruise hiway go with 200 if you cruise in town go with turbo 350 ... be smart about your combo !!!

Title: Re: olds 307 to chevy 350 swap
Post by Rustynail on Aug 27th, 2012, 12:40am
what trans do you have in your ride now? a 200 over drive ? or a turbo 350 ? :-? if your goin to cruise hiway go with 200 if you cruise in town go with turbo 350 ... be smart about your combo !!!

Title: Re: olds 307 to chevy 350 swap
Post by Curt15 on Oct 3rd, 2012, 12:18pm
the only modify you will need is the back trans install,everything else will just drop into position ,change the engine installs and you might have to get headers unless your y-pipe will connect to the manifolds, it relies on which way the manifolds are curved.

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