Re: 454 bottom end
Good , as you'll want 500+ psi spring on the nose of that thing to rev. Or beehives. I also used Ti retainers on my 427 revver.
Balancers are relatively inexpensive. I ran both a new GMPP and a Powerbond in the 427 ( 7500 rpms) . If it's brand new GMPP, it may be ok. If not, as Scott says. Plus on a 454 the balancer, and flexplate/flywheel are required for a complete balance. They need to stay together if possible, for a while. Go new on both ends, as I did. Don't reuse the balancer unless you know its new, is the point.
PS Mark Jones "mated" the flywheel to the engine. If I break it /replace, the balance will be off, both fore and aft, on two dimensions as he warned me. Also, never asked about the crank steel, although I know it's "chinky" and not GM. AS is my flywheel, as I didnt know, assumed HAYES was "kosher". it aint, its "chinky"
ACES 3112/Team Chevelle Gold #62
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