The 440 piston will be way down in the hole (.080 if stock). Shaving the heads (which might be a problem if they are used on future builds) and using a thin head gaskets are not going to have much, if any, impact. 4 CCs less in the chamber and .020 less in gasket thickness can be calculated. With the pistons that far down the hole, the difference will be small enough to probably not be worth the trouble since the OP will probably be starting with no more than 8:1 with the motor home engine.


Master, again and still