I am putting together a 455 fro the street and am going to block fill it. I need to know how far should I go? Would going to the freeze plugs be ok? less or more? I need to know this so the shop can get the rest of my motor done. Thanks Guys Doug
You might also check out the current issue of Popular Hot Rodding. There is a story on Bruce Kent's build-up for the Engine Masters Competition. He did a 'short fill' on the block....he said it would be a good street engine. I believe there was a picture showing how far up the fill went.
My opinion: If it is truly a street driven car, I don't think you should fill the block. How much HP you gonna make? -Bob
Do you have a TA main girdle? I would use one of these LONG before I filled the block passages. Especially for street use. Maybe just a "short-fill", but make sure your oiling system is up to the task of taking over the cooling chores. IE: several quarts increased capacity oil pan, maybe even aluminum to help dissapate the extra heat. Not trying to talk you out of it. p.s. make sure you fill BEFORE machinework!
