I have a 4.8 rcsb sierra, would it be worth the time and money to switch heads, for some say Ls1 aluminum heads??? If so what heads should i be looking for??? and what are the casting #s???
thanks guys
Brian

 

01 - 04 ls6 210 / 75 64 cc should work just fine

 

Well it depends on the other mods that you are going to do. Are you doing forced induction , spray or n/a??? are you going to get a cam??? a stall???? what are your current mods??? what are your power goals?????

 

If you put actual LS1 heads off an f body will they just bolt up and all the brackets for accesories like up correctly? Just wondering...

 

The center bolt LS1 heads are externally identical to the 4.8l, 5.3l and 6.0l truck heads. The major differences are in the intake seat/bowl area and the combustion chambers. All brackets will interchange without issue.

Richard