Some of the 5.3's already come with the 799 heads. 799 heads are the same as 243 heads, just made in a different plant.
If you get the 799/243's I'd do a valve job, healthy cam, swap an LS6 intake on there and get a good tune. You'd have a fun little motor.
I did a 6.0l LQ9 in my '67 and it's crazy fun. 458rwhp and no carb to fiddle with!
|