flywheel help
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Joined: Aug 2009
Posts: 73
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From: Ma
flywheel help
Happy holidays forum members
....I'm replacing a flywheel on my 70 350/300 4spd car. The part number that came off the car is 3789733 it is 168 tooth 11" clutch. I have found a few 3986934 available. Does anyone know if they are interchageable ??? or if any other 11" 168 tooth flywheel will work for me ?
Thanks in advance.
....I'm replacing a flywheel on my 70 350/300 4spd car. The part number that came off the car is 3789733 it is 168 tooth 11" clutch. I have found a few 3986934 available. Does anyone know if they are interchageable ??? or if any other 11" 168 tooth flywheel will work for me ?Thanks in advance.
Safety Car
Joined: Mar 2007
Posts: 3,652
Likes: 49
From: Bridgewater nj
When I did my 74 I used any 350 flywheel with 168 teeth. They're the same except for clutch sizes. then u buy a clutch that fits 10.5, 11, 11.5,ect...it has to be changed anyway.
When I need to compare, I go to Rockauto.com and compare apples to apples, oranges to oranges
When I need to compare, I go to Rockauto.com and compare apples to apples, oranges to oranges
Melting Slicks
Joined: May 2005
Posts: 2,826
Likes: 3
From: Tennessee
Happy holidays forum members....I'm replacing a flywheel on my 70 350/300 4spd car. The part number that came off the car is 3789733 it is 168 tooth 11" clutch. I have found a few 3986934 available. Does anyone know if they are interchageable ??? or if any other 11" 168 tooth flywheel will work for me ?
Thanks in advance.
....I'm replacing a flywheel on my 70 350/300 4spd car. The part number that came off the car is 3789733 it is 168 tooth 11" clutch. I have found a few 3986934 available. Does anyone know if they are interchageable ??? or if any other 11" 168 tooth flywheel will work for me ?Thanks in advance.
Not familiar with those part numbers but as long as the flywheel is a 168tooth and it is for an '70's era sbc, it will work. It should be a zero balance flywheel and the hub will be for a 2 piece rear main crank.
In 1986, GM went to a 1 piece rear main and thus, the flywheels changed at that point. The bolt pattern as well as the counter balance.
Since you are changing it, look into a billet steel flywheel. They will save you weight over the stock cast one's, very strong and they are reasonable in price too.
Richard
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