well i am looking at doing a heads and cam 6.0 it will be going in a RCSB 2wd i have 4.10s built tranny and a ss3600 i will be doing either AFRS or TFS
heads and it will be all motor no juice and id like to get at least 400rwhp
any suggestions

 

How much daily driving will this truck see?

If this is a weekend warrior and use during nice summer weather to get Dairy Queen with the wife, try to shoot for 10.5+:1 compression and hunt for a cam close to the XER273 from Comp Cams. Keep in mind, many of those AFR and TFS heads have 65-66cc chambers so plan to mill a bit off of them to bring an LQ4 up from 9.4:1. Aim for 60-62cc chambers when all is said and done so the big camshaft doesn't feel so soggy down low. 400rwhp may be within reach if you pick the right heads.

 

the truck will only be a weekend driver i was thinking of the comp cams xer281 and i also plan on running a LQ9 short block with flat tops

 

The LQ9 already has flat top pistons. You'll have to mill or change the heads to bring the compression up.

 

thats what i was planning on doing id like to mill them to at least 62cc or even 59cc

 

Any reasons behind the XER281?

 

its the same as a TSP v.2 and ive seen a few 6.0s over on tech using them with pretty good results ive seen a few make over 400 to the wheels and they were a4 cars also

 

Focus on the weight difference between your build and what is in bold.

 

yeah i know i didnt really think of that to much my truck is a heavy pig so you think i should go with a smaller cam with less duration

 

If I could do it all over again I would get the LQ4 instead of the LQ9. Then put the TSP stage 2.5 5.3s on the LQ4 with something like a 224 or 228 cam. I would guarantee that would get your 400rwhp.