Would it make sense for me to get aftermarket heads? What type? Can i get the same benefits from just working my L33 heads.
I have everything in sig + 224/114 .578" cam and 3000 stall going in tomorrow.
Check out ET Performance, IMO, the best head out there!
The engine swap is going to give you more power, however, the heads will make that 5.3L run very well.
$2000 for the heads, and depending on what kind of condition you get a 6L, it could less than $2000 as well, doing the labor yourself will safe you a lot of money!
good luck,
allen
Nelson Performance
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'94 Chevy Truck: 8.9 et, 408 twins