[DAVID GAGNARD]

Jim;

What crank are you using?????? If it is a Scat crank,they are NOT balanced at all from the manufacterer and as per their instructions your entire rotating assy. needs to be balanced before engine assy. I'm not that familar with the 400 crank, so I can not comment on using that one.....

Stock type heads are real restrictive on a 393 stroker,so I would suggest any good aftermarket head,I prefer aluminum. I plan to use the AFR heads on my upcoming 393.

I'm using stock type iron heads that have been extensively reworked (ported-polished-bowls blended& gasket matched,screw-in studs-guide plates,new valve guides,also 1.90/1.60 valves) and they are supposed to be on par with stock out of the box aluminum Edlebrock heads. I got the heads for $75.00 off the stock engine and for what I have spent on them I could have bought any aluminum heads on the market with money left over.....This is on a 351-W. I'm running a comp cam with 272 dur./484 lift on intake,284 dur. 512 lift on exhaust and it idles smoothly at 750-800 rpm and pulls well to 6000 rpms. Very pleased with this cam. Going a little bigger for the 393 and will use a roller hydraulic cam as well.

David