i have a pair of vortec heads casting# 10239906, and the valve guides have been cut down .150ths for more cam lift. the question is how much cam lift can i run , i want to use a ZZ4 cam @.05 -i.474,e.510,dur i208,e221 lobe sep112.
will this cam work, if not what else shold i do ......any sugestions?
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TIM
'71 CUSTOM C-10 torch red ,350 roller GM crate,3.73 GEARS, REAR 4"DROP SPRING, FRONT 2.5" DROP SPINDLE-1.5"lower spring, FRONT=17x8(4.5bs) W/265-60-17, BACK=17x9.5 (5bs)W/285-60-17, Vintage Air Sure Fit AC------NEVER ENDING PROJECT!!
06-10-2004, 12:56 PM
need help with VORTEC heads...........
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