Will this clear w/o flycutting?
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Will this clear w/o flycutting? I plan on running the TRAK cam from Thunder Racing (231/234 .640/.590 112 LSA 110 ICL) along with a set of ported 5.3L heads milled .010" and with 2.02 and 1.57 ferrea valves. Also what if I advanced it 2*, would it still clear? I'll probably clay it anyhow, but would like to know if anyone else has tried it.
Last edited by 777; Aug 3, 2006 at 09:19 AM.
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From: Jacksonville, FL
Yeah I've been talking with him about it. Gunner@Patriot said he just had someone run that cam with a set of his heads and said that it fit w/o flycutting. However, I didn't get the specs on what heads they were.
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From: Jacksonville, FL
I've heard that manley valves are within .005" of the ferrea valves. Also, looks like I'll be using an 806 perimeter bolt casting now. Anybody have an idea of what kind of numbers I'll make with stage 2 806 castings and the trak cam. Already have full bolt-ons (see sig) I'm hoping for ~450rwhp
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Well I just got an email from Manley and their LS1 intake valve margin is .050. This is part number 11362-8 and is the 2.02 diameter. My measurement of the Ferrea is .060 so the difference is .010 by my measurements. I couldn't find anything on Ferreas site specifying the valve margin of the LS1 valves. Here's a pic of a Ferrea on the left and stocker on the right.
I think it would be best to clarify that Ferreas will eat .040 compared to stock. Manley's LS1 intake valve will take about .030 compared to stock.
I think it would be best to clarify that Ferreas will eat .040 compared to stock. Manley's LS1 intake valve will take about .030 compared to stock.
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