LQ4+243 milled to .030- Whats your thoughts?
05-09-2012, 08:49 PM
#11
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I'm running the stock MLS .051 gaskets I'm guessing MPFD is running cometics all i know is AI told me id be right at 10.8 to 10.9 with the stock gaskets and my 243 heads milled .030 so they went from 64cc to 60cc
05-09-2012, 09:55 PM
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The chamber for all intents and purposes is a dome. Each .010" you mill off changes the cc of the dome slightly less then the last cause the diameter decreases with each pass. By taking it out at the gasket you get a bit more diameter this gives you a bit smaller over all chamber then taking it all off the head... Minimum PTV clearance should be .080" on intake and .100" exhaust, but I'd rather see more...
05-10-2012, 11:12 PM
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Well my set up wasn't a dyno queen. It's first numbers were 330hp/487ft-lbs. with the patriot cam. But if you put its weight & 1/4 mile times in any HP calculator it figured to be 413hp +/- 5 depending on which one you use. The BRE cam made a huge difference in power but it never got to the track. I'm pretty confident it would have gone at least high 12's NA...
05-11-2012, 08:14 AM
#19
Yeah im shooting for high 12s on motor and try to spray her into the 10s. Should make for a pretty good weekend toy.
What length push rod u running with your heads milled that much and .040 gasket? I currently have 7.4s with .650 patriot gold springs. I know that will be to much push rod once i mill these heads and change gaskets.
What length push rod u running with your heads milled that much and .040 gasket? I currently have 7.4s with .650 patriot gold springs. I know that will be to much push rod once i mill these heads and change gaskets.