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SBC Rotating Assy

1597 Views 15 Replies 11 Participants Last post by  smallblk77
Dropped my 400 block off at the shop for test and check. Was looking at 406 or 421 rotating assy. Shop said they could get a forged kit for $2300 for either size "just let them know". That seems a little high to me with just looking around on the net. Is that right or can I get a good quality kit at a cheaper cost?
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You probably have more to think about than just the cost and weather $2300.00 is good for either. I agree you should definately make sure you know what brands you are paying for.
I have a SCAT 4340 Crank, Manley Rods and Ross pistons that I did not buy as an assembly, and paid about 2K to put in a 406.

Is this a street car, or a race car?

If you intend on racing it you might consider the cylinder head needs.
The 406 will do ok with a 23 deg head. If you want to feed the 421 an 18 deg head would be what you need.

If this is going to be a dedicated pump gas street car and you aren't worried about max power etc, Heads won't matter so much.
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