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Increase in power from milling heads?

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Old 04-10-2009, 07:09 AM
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Default Increase in power from milling heads?

I would like to see what kind of gains folks have achieved with milling heads. I know alot of variables come in factor, maybe a before and after?
Old 04-10-2009, 07:34 AM
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I can tell you that adding TSP Stage 1 LS6 heads milled to 59cc and a LS6 intake and a 25% UDP I went from 370 to 440. I have 300 ft*lbf at 2250rpm. That is going from stock 98 heads and whatever compression ratio stock is to about 11.4:1.
Old 04-10-2009, 10:35 AM
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Ever 1 point in compression increase is worth about 3>4% more power.
So if baseline is 300rwhp at 10:1, the same motor at 11:1 should make ~312 rwhp
Old 04-10-2009, 10:52 AM
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Before- Gm hotcam, 241 heads, fast 90, Harland 1.8's stock compression.

After- Trickflow 220's milled to 60cc's, VRX5 cam, Harland 1.7's 457hp and 405ft lbs
Old 04-10-2009, 11:09 AM
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not sure how that helps...

different heads, different cam
Old 04-10-2009, 11:43 AM
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Litle88 what is the specs on your VRX5 Cam?
Old 04-10-2009, 06:10 PM
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Originally Posted by bigboykilroy
litle88 what is the specs on your vrx5 cam?
236/238 .601/.605 113 lsa




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