Generation III Internal Engine 1997-2006 LS1 | LS6
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what size heads?

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Old Aug 25, 2007 | 08:23 PM
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BlazinT/A's Avatar
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Default what size heads?

just picked up a 370 from TSP and will be looking into heads real soon but i was wondering if an AFR 225 is too big for the CI of this engine. i plan on doint asome nitrous and i only want to buy heads once. if you guys have anything that could help me out than i woulld really appreciate it
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Old Aug 25, 2007 | 10:48 PM
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205's will do you well
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Old Aug 26, 2007 | 04:05 AM
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TFS 215's or TFS 225's, either one is smaller than the AFR 225's and should make more power on your size engine. I have seen both TFS heads make over 500 RWHP on stock LS1's and LS2's. The exhaust port and exhaust valve on the AFR head is a little too large for your size engine.
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Old Aug 26, 2007 | 09:02 AM
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thanks guy what about an ETP 215?
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