Vintage Oldsmobiles Curved Dash, Limited Touring, Models 40, 53, 66; Series 60, 70, 90

1962 Dynamic 88 transmission swap and engine mount?

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Old Mar 21, 2025 | 04:08 PM
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rapoport05's Avatar
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From: Dayton, MN
1962 Dynamic 88 transmission swap and engine mount?

Hey all, I have a 62 dynamic 88 convertible, I'm looking to build it into a higher powered cruiser.

Here's the ultimate goal: 394 high compression engine with a tri power (i have a demon tri power carb set up and an offenhauser manifold, but i might switch to rochester carbs if needed), fabricating my own headers (might end up being log style, not sure) dual exhaust, TREMEC TKX 5 speed, and fabtech 3.73 posi in the factory rear end. It will ultimately have tubular control arms, disc brakes on all 4 wheels, etc etc etc.

Here's the dilemma: if I put the manual transmission (or any other swap for that matter) behind the 394 do I attempt to keep the front and rear engine mounts as well as a transmission mount? Or do I use a hurst style envying mount up front, delete the rear engine mount, and have the transmission support the back?
I'm not opposed to fabrication, I know this will be a big undertaking, and I'm 100% set on putting a third pedal into the car.

currently the car is a low compression engine, slim jim tranny, bench seat car that I'm driving as much as possible, as I'm neck deep in a 58 chevy truck project that needs to finish before I tear into the Olds, so I'm collecting parts and trying to plan the attack right now

I should add that I'm going to do EVERYTHING on this car. Frame off, paint, body gaps, shave some from, etc

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