Flexplate for 307 & TH700

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Sep 28, 2011 | 01:28 AM

aaronbauer

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Flexplate for 307 & TH700

i have a 86 camaro that used to have a 305 4bbl and i took it out and now have a 69-73 307 i need help finding which flywheel will fit my 700r4 trans. the flywheel off my original motor is 12.85 in and has a 2" hole for the crank. the 307 has a 14" diameter flywheel and like a 2.5" hole for the crank

Sep 28, 2011 | 01:31 AM

aaronbauer

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swap 305 to a 307 need flywheel help

Sep 28, 2011 | 06:57 AM

sofakingdom

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Car: Yes

Engine: Usually

Transmission: Sometimes

Axle/Gears: Behind me somewhere

Re: swap 305 to a 307 need flywheel help

83-85 Camaro/Firebird V8

Be sure your heads have the accessory bolt holes, and that the block has the correct starter bolt hole

Sep 28, 2011 | 02:59 PM

five7kid

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From: Littleton, CO USA

Car: 82 Berlinetta/57 Bel Air

Engine: L92/LQ4 (both w/4" stroke)

Transmission: 4L80E/4L80E

Axle/Gears: 12B-3.73/9"-3.89

You should be able to use the 307 flexplate and starter with the TH700. If the flexplate doesn't have the proper holes to bolt up the torque converter, you should be able to find a replacement flexplate at a parts store that has both torque converter bolt patterns.

You can also use a flexplate from an '82-'85 f-body V8 automatic, but your 307 block may not be drilled for the f-body starter you'd have to use with it.