or you can have the front of the crank neutral balanced and then use a 350 damper.
400 small block damper
Race Director
Joined: Sep 2003
Posts: 16,839
Likes: 341
From: Database Error Indiana
Racer
Joined: Sep 2007
Posts: 493
Likes: 0
From: Eden Utah
If you internally balance the engine, the flex plate and damper can be out of a 350. If not then you need to use the damper and flex plate from a 400. The balancer from a 350 is smaller.
Melting Slicks
Joined: Mar 2002
Posts: 3,108
Likes: 126
From: S.L.C. UT
If the engine is already built, and is external balanced on the front, there are some smaller diameter external balance dampers out there. The stock 400 damper is big, and will hit the crossmember without denting the crossmember. I know Pioneer, and others out there have a damper around 6 3/8" or 6 1/4" in that range that will clear the crossmember.
All the SBC dampers will align your pulleys correctly.
All the SBC dampers will align your pulleys correctly.
Racer
Joined: Sep 2007
Posts: 493
Likes: 0
From: Eden Utah
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Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,328
Likes: 14
From: Stafford Connecticut
Hi Wayne mine is externally balanced.I know the stock diameter one I have will not fit because of the cross member.Also the factory one is "1 1/2 thick and the one in the the vette is "1 1/4 thick.
Racer
Joined: Sep 2007
Posts: 493
Likes: 0
From: Eden Utah
Read TPI 421 note above. They make smaller balancers, it is the weight that counts. You need to make sure the one you purchase is for a 400
