milling 317 heads...
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milling 317 heads... I picked up a high mileage lq4 over the weekend.. plans are a rering, asa cam, or maybe a .550ish lift howards cam, z06 valve springs, and mill the 317's to bump up compression...
a friend of mine just bought a head surfacing machine and told me to bring him the heads and he would cut them down for me...
I told him to cut .030 off of them.. whats the most you can expect to cut off the 317's and be safe with a .550 lift cam using the stock mls head gaskets.. also not have any intake mounting issues.
thanks.
a friend of mine just bought a head surfacing machine and told me to bring him the heads and he would cut them down for me...
I told him to cut .030 off of them.. whats the most you can expect to cut off the 317's and be safe with a .550 lift cam using the stock mls head gaskets.. also not have any intake mounting issues.
thanks.
well has he ever done milling? make a test cut, measure the depth.. then aim for the CC..
not sure about how far you can go with milling, try a quick search.. But I know not to go too far because of valve shrouding...
not sure about how far you can go with milling, try a quick search.. But I know not to go too far because of valve shrouding...
Thread Starter
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He had an older surfacing machine, he sold it and has acquired a newer machine that hes never used.. hes going to cut a set of his own heads prior to cutting mine.. he didnt act too worried about it..
Me and him both have been toolmaker/mo;dmaker for 25yrs.. I have a bridgeport myself, just dont have a large facemill or fixturing for heads and my mill could use spindle bearings before I use a facemill that large.
Me and him both have been toolmaker/mo;dmaker for 25yrs.. I have a bridgeport myself, just dont have a large facemill or fixturing for heads and my mill could use spindle bearings before I use a facemill that large.
