Anyone ever angle mill a set of small block aftermarket heads?

[prorac1]

Anyone out there ever play with this? What kind of costs and problems did you run into? Im assuming you would have to angle mill the intake or the intake surface of the head, and surface the bolt holes. Trying to get the chamber size down. Anyone? Eric L

[JoeliusZ28]

I looked into it, you can only go about a half degree before things get complicated. Worth doing IMO however.

[prorac1]

I dont know if a half of a degree would be enough. Eric L

[JoeliusZ28]

enough for what? you can go further but then youre probably getting into 'custoparts with custom headaches' as my father likes to call them.

[prorac1]

Check your PMs, lol. I need to get the chamber smaller without hurting flow and without cutting into the intake seat area. Eric L

[wasjo6431]

drop the composite HG and go with a Steel shim i used one with a compressed height of .015 milled my heads .060 flat mill. and dropped my CC to 58 from 64 upping my CR to around 11:1 how high do you want to go?

[prorac1]

I want 12.0-1. The thinnest gasket I can find for an LT1 (this is an LT1) is .026. And the smallest i can flat mill the head is to 60cc. Eric L