Quote:
Originally Posted by GOSFAST
Could you expand on the projected required machining necessary to have the valve seats (assuming inserts at least on the exhausts, intakes aren't really needed) ready to assemble??
Most all of the aftermarket blocks we use need only the deck hgts done and the bores finish-honed, all the other CNC'd dimensions when machined by the vendor's are "workable" for the most part. Obviously there's no valve seat work needed on conventional V-8 blocks??
Thanks, Gary in N.Y.
P.S. Just curious about the valve/seat area requirements basically on your "as-delivered" casting!!
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I will chamfer the valve seats during machining like I do on my Model A iron blocks and the builder will have to seat the valves. I do not know what the cost to seat valves is. I will bore the cam and crank during machining and they will have to be line honed. I will ream the end journals (cam and crank) to within .01 and then bore the center journals to within .01. The cylinders will be bored to within .01 of stock. If someone wants larger than stock their builder will have to do it. Lifter bores will be reamed to size and shouldn't need touched. The valve guide bores will be reamed to size. Obviously, I will bore the lifter holes before reaming to make sure they are in the right spots. Same with the valve guide holes. Decks will be left a little high (say .01 or.02) like I do with all blocks I have ever made.
Tod