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Old 07-28-2006, 06:46 PM
Mason357 Mason357 is offline
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305 to 350

Hello Everyone,

I have a 1987 SS Aero Coupe with a stock 305 V8. I am in the process of upgrading and have been thinking about replacing my motor with a 350. In doing such, will my existing transmission (200 4R) be compatible with a 350 motor? Or will I have to replace the trans/Drivetrain as well?
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Old 07-28-2006, 10:23 PM
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Blue Bowtie Blue Bowtie is offline
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Re: 305 to 350

It will bolt right up, just like if you were installing another 305. The 200-4R may not like the extra torque, but if the 350 is stock or just mildly built (under 375 ft/lb) the trans should last.

It might be a good idea to freshen up the torque converter while the two are separated, but that's up to you.
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