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Old 02-18-2006, 01:23 PM
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Help Today Th350 To 454 Flexplate

The 350c I have will not bolt to my 1974 454 flexplate, The 454 used to have a 400 on it. I'm doing a 4x4 conversion and have a TH350/205 TC to go on the 454. What is the cheapest way to acomplish this, converter or flexplate? Hopefully one of these parts can be switched because they are the only ones I can change. please tell me what to ask for at the parts store.Thanks ASAP.

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Old 02-18-2006, 02:45 PM
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Get an aftermarket replacement flywheel for the 454. They come with dual bolt patterns to allow the use of a 13" (T400 stock) converter or 12" (T350 stock) converter. Be sure the flywheel is for thr correct year 454 'cause the weight is diferent for the later engines.
Check Jegs or Summit of flywheels. Easily found
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Old 02-18-2006, 06:51 PM
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Beware to all Eng/tranny swappers.Check flexplate

Thank you very much Chaz. I found the dual pattern Flexplate at Summit. T400=11.5", T350 10.75". EX bal,168T PN: PIO-871003, $42.69. Nice easy fix. Like you said.
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