Thread: 81 Firebird Engine Swap from a Buick V6 to a 350 Chevy
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Old 03-29-2023, 09:30 AM
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Scarebird Scarebird is offline
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200-4R's did not come in F bodies except the 1989 Turbo Trans Am.

Yours most likely is a THM200C, which is a lightened TH350 with lock up converter, unfortunately a notoriously unreliable transmission.

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