LS1 heads on a 4.8
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They would flow better, but you would still have less compression. I have a set of P&P 4.8/5.3 heads and they made a big difference on my 5.3. But I bent a couple of valves when I blew my motor, so right now they are being used as paper weights till I get around to getting some new valves. Then Ill probably sell em
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Originally Posted by virgils4.85spd
Would ls1heads shaved for more compression, be better flow-wise than the stock 4.8l heads?
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Originally Posted by Richard@WCCH
That is correct. Just different foundry's.
Richard
Richard
Thank you for that, there are some people that will argue until they are blue in the face about that.
I have a question on your heads though, do you see much of a pickup going from the 2.00" valve compared to the 2.02 on the ls1 heads?
Ryan
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#10
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Originally Posted by Mighty Wings
How would a pair of stock LS6 heads work on a 4.8? I have a set lying around in my garage, including an LS6 intake and Lunati Cam 224/227 112 .589 lift.
Using the intake will cost you a ton of low end power over the truck models, plus you would need to install the LS1/LS6 belt drive system ( the car intakes are lower and the TB interferes with the water pump outlet ). The truck intake shows as good or better at all RPM's below 5000.
The cam would be a nice combo with the heads as long as you get the CR up a tad.
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