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Old 01-11-2020, 08:00 PM
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283 harmonic balancer/damper ?

" Ray bell thank you for the correction. Rotating weight. The 283 balancer does not have a flexible ring. There is no outer ring at all "

Anyway I was looking at the balancer that came with this 283 and it does have a scribe line on it. 6 3/4". I compared to a 350 balancer and I thought the outside ring was gone but it looks like it was made that way on a 6 3/4. Do they just have a "hub" and not really a balancer? Was the stick different than the automatic? This will be a drag racer 1700 pound car with a th350 or th400 6500-7200 rpm max.

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Old 01-12-2020, 11:56 AM
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You'll wanna use a 6 3/4 internal balance damper (like for a 350) as it's way better than the hub only.
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Old 01-12-2020, 01:51 PM
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Fit a 8” damper for a 350, if it will clear the frame. On street performance engines, the 8” damper should be used. A race only 283 does not need a damper.

Example: Carroll Caudle’s 310 CI eleven second 1955 Chevrolet C/MP did not have a damper. He shifted his 1955 Chevrolet 310 CI engine about 8,000 RPM using a Clay Smith camshaft and a home made tunnel Ram intake manifold.

I broke the crankshaft in my 327 engine that was in my 1959 Chevrolet at the rear main journal because the crankshaft did not have a damper. The original 283 engine in my 1959 Chevrolet did not have a damper and I thought I did not need one. The longer stroke SB Chevrolet engines such as a 327 and a 350, need a damper.

Last edited by MouseFink; 01-12-2020 at 02:03 PM.
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