Advantage of 5.3L heads in an LS1
12 Second Club
Joined: Mar 2005
Posts: 1,498
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From: Corpus Christi
I believe it's for higher compression and cost less, of course they would need to be ported and bigger valves to help so cost could be the same as LS6 cnc heads. I got LS6 cnc 59cc, 2.02in/1.57ex w/ 231/237 cam. no issues here for ptv, not sure about the 2.04in on the 5.3 heads milled to 59cc. I would think that would require flycutting.
Originally Posted by PunkNPonys
Ok so now i am confused do they flow better then the 5.7 heads or not, if they are both ported and polished? Also what kind of price am i looking at to get 5.3 heads ported and polished? Looking for anyone with proven results.
also keep in mind that the flow numbers you see on websites are often not what you actually get. i personally have no freaking idea which heads i will go with when its time to upgrade.
Originally Posted by slow95z
are you the brad from milledgeville i knew back in the day? i know its random and off topic but if so i would love to chat with you about some LS1 stuff.
oh well, thought maybe i got lucky and found an old friend of mine from another car site hehe. well on your head choices you didnt list LS7 heads, why not go with something like that? are the TFS or AFR heads still better? what about warhawk heads?
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Verdad Gallardo i know that but the warhawk heads arent stock either. with the trickflows i know you need to get different rock arms making the price much higher than it looks. what about the RHS heads? those look good but at almost 4 grand for a set it seems a bit too much for me for just ls1 heads.
