flywheel difference BBC IV to VI ???HELP!!!
 

I have read that the flywheel was lightened on the mark VI to make room for the one piece seal. Also I am going from from 454 mag(heavy pistons/rods) to vortec cast stuff and want to know what flywheel can be used and keep my starter. Is it just a matter of ordering a '96 or newer flywheel from GM? Are there 2 diameters like on the older stuff? Thanks for any part #'s ,and yes I know about cast stuff.

Re: flywheel difference BBC IV to VI ???HELP!!!
 

I think I found it. GM #14096987 casting #14096805
14" for std 454 502 91-current. Sound right?

Re: flywheel difference BBC IV to VI ???HELP!!!
 

ID # 14096805 That flywheel is for 454-502 GenV 2 piece seal,forged, external bal. and 454,502 GenVI 1 piece seal,forged, external bal.All flywheel are 30lb. 168 tooth and 14" dia.

Re: flywheel difference BBC IV to VI ???HELP!!!
 

but mine needs to be for cast now. Also I think the part # is diff due to diff machine work for bal. So what does anyone think my new flywheel should be?

Re: flywheel difference BBC IV to VI ???HELP!!!
 

They will bolt on but the balancing is different.

Re: flywheel difference BBC IV to VI ???HELP!!!
 

so anybody know the part # for a cast 454 Gen 6 ? Mr Goodwrench website shows the one in my first post which I'm assumeing is for cast since it says "standard".

Re: flywheel difference BBC IV to VI ???HELP!!!
 

454GenVI ID#10101171 balancer #10216452.I have one if you need.

Re: flywheel difference BBC IV to VI ???HELP!!!
 

thank you Fla-son.What is your e-mail?

Re: flywheel difference BBC IV to VI ???HELP!!!
 

[email protected] or call me 352-262-0395.If you want it and can use it just pay the shipping and get the dam thing out off my garage :) James

Re: flywheel difference BBC IV to VI ???HELP!!!
 

still need it but can't reach you,,is that phone # right?Thanks,Allen