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LS1 heads????

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Old 02-12-2006 | 03:06 PM
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EvilChevy
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Default LS1 heads????
I am considering a set of LS1 heads for my 2000 Chevy ex/cab w/4.8 litre. I'm curious if they will flow better than my stockers...
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Old 02-12-2006 | 08:53 PM
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I think it depends on your definition of 'better'. They'll flow MORE, but they'll also lower your compression. Are you planning to go FI?
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Old 02-12-2006 | 09:12 PM
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if you check other threads i believe that It will lower your compression and almost overflow for the 5.3 let alone the 4.8. I do not know of any heads they recomend for the 4.8 though.
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Old 02-12-2006 | 09:24 PM
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If you get the ls1 5.7 heads the valves will be so close to small bore of the 4.8 and 5.3 that you could burn a valve quick, but if you do decide to get them make sure you get the 5.7 head gaskets.
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