243's
#1
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i just got me a hold of some 243's with 918 springs in em already how much should i mill these for my 5.3 with stock head gasket and wat size pushrods will i need the cam that i have is a 224/224 .581 .581 112
#2
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If you mill them .035" your combustion chamber sz will be around 59CC, I used hardened stock length push rods but used .030" shims on the rocker arm pedestal bosses given me the correct lifter pre-load. ...The shim kit cam with .030" & .060" so you actualy could shim up to .090"....but if you wanted to just go with .025 shorter push rods you probably will be ok.....BUT it's always best to get a push rod lenght checker...