racerdude5
Well-Known Member
Is there a way to mill your heads for higher compression in a way that you can maintain the correct valve train and pushrod angles?
mill heads and maintain proper valvetrain angles
- Thread starter racerdude5
- Start date
-
racerdude5
Well-Known Member
Thanks for the effort but that wasn't really the answer I was looking for.
Yes you can mill and maintain the correct pushrod angle. A good shop will angle mill them. Ask questions you might have of any shop you use. They should be able to give you answers you can understand even if you don't have a background in engine building.
hollywood hig
King of the assklowns
the push rod angles are not really going to change, or the change would be insignificant imo. you might have to run a different push rod length..............your talking at the most .060 thousands, that's if your head can be milled that much...........
higgs
higgs
Yes you will need new push rods. And you may have to machine the intake 
ops:
ops:
I cut .100 of a 360 block and .060 off x heads with a .040 head gasket also .100 longer valves used 273 rockers and off the shelf push rods for hydraulic adjustable rockers only had to put a .030 shim under rocker arm shafts and ran this engine for 3 years without valve train issues or clearances problems, and also cut the hell out of the intake to aline. but I must be lucky because there seems to be a lot of issues with clearances .
moper
Well-Known Member
Milling doesn't affect pushrod angle. Or valve angle. Or geometry. Only pushrod length is affected, along with the position of the intake bolt holes. If you have to mill the heads a lot you have to mill the intake mounting flanges on the heads too. If you go really far, then you can;t mill the intake flanges on the heads far enough (you hit the valve covver bolts) and you have to mil the intake itself. By the time you're done you'll have a bunch of $$ in milling and pushrods - and frankly static compression ratio isn't that big a deal.
-
