is 305 TPI internal/externally balanced. i have to buy a flywheel for my changeover
01-20-2008, 08:23 PM
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is 305 TPI internal/externally balanced. i have to buy a flywheel for my changeover
tried to buy a new flywheel today. they asked a bunch of questions and i only got as far as 153 tooth , but didn't know anything about balance.
01-21-2008, 12:12 AM
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Just get a flywheel for the year of the engine. Don't worry yourself over "internal" or "external" balance, because there are issues with definitions there, and even if I explain that your 305 is internally balanced, the presence of a weight (on the flexplate, at least - you have an automatic or manual transmission?) will just confuse the issue.
'86-up = one-piece rear main seal, 153-tooth flexplate/flywheel.
'85-earlier = two-piece rear main seal, 153-tooth flexplate/flywheel.
That's all you need to know.
'86-up = one-piece rear main seal, 153-tooth flexplate/flywheel.
'85-earlier = two-piece rear main seal, 153-tooth flexplate/flywheel.
That's all you need to know.
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