Im getting TSP head and cam package early next month I'm thinking on going with the stage 2.5 L92 heads with the TSP 228R cam But i was told that the L92 heads will not fit the 07+ 5.3 engines due to the size difference and I'm planning on a Turbo at february so Will the heads fit my 5.3 and are they going to be good with a turbo or i get the stage 2.5 prc 5.3 heads and will I lose any numbers if i go with a Turbo.

and last of all will these heads Fit. and is the cam im choosing good or no?

Thanks

 

The L92's won't fit on a 5.3 because the bore is too small

 

6.0 heads will fit such as 317's, but L92's have too large of valves for anthing less than 4.03 bore I believe.

 

i was told the older model's heads wont fit the new models. and what about the stage 2.5 5.3 heads will they fit the newer models?