5.3 Heads on a LQ4? Enough HP difference???
03-31-2009, 10:13 AM
#13
some good info on most of the stock GM heads. no idea on the accuracy of any of the numbers.
http://www.smokemup.com/tech/ls1.php
http://www.smokemup.com/tech/ls1.php
03-31-2009, 12:31 PM
#14
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Prob just stick with the stock ones for now. Had the motor out and the heads off. Also have some LS1 heads and 706 heads laying around. Probably going to send the 5.3 heads off and put bigger valves in them later on. Stock for now though.
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