LS6 heads
You talking just heads or heads and cam? If already cammed I would expect larger gains, and if doing a cam at the same time huge gains.
Properly ported 243s are great for stockish displacement engines and many strokers.
Properly ported 243s are great for stockish displacement engines and many strokers.
I feel like you would have to spend some cash to make an 853 head pick up that much power. Larger valves and the whole deal. I have seen 243s go for less then 500, between the small hp gain and bump in compression I think its worth it if you can find a good deal. Also 243s respond pretty well to porting, you can get them ported later on down the road and pick up even more power.
