Flycutting needed with this cam?
03-16-2008, 08:24 PM
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Flycutting needed with this cam? I have a question for you guys regarding piston to valve clearance. I am running a stock lq4 shortblock with -8cc dish pistons, .041 head gaskets and a set of 243 casting heads milled .025". My question to you guys is I'm going to be running a 218/224 .590/.600 114 +2 cam. What I'm wanting to know is has anyone put anything like this together and if so, is, was, or will there be enough piston to valve clearance without having to flycut the pistons? I don't exactly feel like doing this and I'm contemplating redesigning the camshaft with less lift if I have to. Any input is appreciated.
03-16-2008, 08:52 PM
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Right, the fact I want to cut the heads .025 and run a .041 head gasket makes me wonder. I won't cut the heads if this cam is going to be too risky.
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03-17-2008, 08:44 AM
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Should have an adequate amount of clearance and not need any fly-cutting. My setup with larger valves, more milling, and a larger duration/lower LSA/ICL only required knocking down a minimal amount of the ridge at the edge of the dish. No eyebrow in the base of the dish was required.
03-17-2008, 08:53 AM
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Should have an adequate amount of clearance and not need any fly-cutting. My setup with larger valves, more milling, and a larger duration/lower LSA/ICL only required knocking down a minimal amount of the ridge at the edge of the dish. No eyebrow in the base of the dish was required.
03-17-2008, 10:43 AM
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ZL-11x Camshaft:
This is as large a cam that will fit with without flycutting the pistonns, If you want to go bigger we do offer a flycutting service Advertised Duration 273 277
Duration at .050 220 224
Gross Lift .557 .578
Lobe Separation 112
03-17-2008, 01:56 PM
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I am running a much larger cam with milled heads with clearance, we clayed and everything
244/242 .612/610 112lsa w/Patriot LS6 Stage II 59cc.
I think you should be fine but I am no builder
244/242 .612/610 112lsa w/Patriot LS6 Stage II 59cc.
I think you should be fine but I am no builder
