JNorris

iTrader: (4)

Which cam will have most P to V clearance on the intake side?
Will all of these cams have enough P to V clearance to be run with 5.3 heads milled .015 with 2.02 intake valves?

230/224 .573/.563 ICL=111 LSA=111
230/232 .591/.581 ICL=108 LSA=112
230/232 .591/.591 ICL=110 LSA=114
230/232 .591/.591 ICL=110 LSA=112

Thanks

John

evilz06

I have a calculator that wll calculare P/V clearanse from any cam, valve relieve, timing events, etc. Just let me know if you want me to figure it out.

JNorris

iTrader: (4)

PM sent.

Thanks

1fastWS6

iTrader: (3)

numbered worst to best, #2 will be the same but the 114 lsa will have better clearance on the exhaust side.

1) 230/232 .591/.581 ICL=108 LSA=112
2) 230/232 .591/.591 ICL=110 LSA=112
2) 230/232 .591/.591 ICL=110 LSA=114
3) 230/224 .573/.563 ICL=111 LSA=111

Don't quote me on this, but I'd think #2 and #3 should fit fine, but #1 might be on the tight side.

JNorris

iTrader: (4)

Thanks for the response. So the lower the ICL the less P to V clearance you have?

John

1fastWS6

iTrader: (3)

Yes, with all else being equal, it means that the valve starts opening earlier when the piston is closer to TDC.