Ls3 can and heads on 4.8
 

Ok I've been looking into this for a while and cant find all the specifics as to weather it will work or not. What I have is a 2011 nnbs ccsb with the new l20 4.8 engine in it. I'm wanting to do a cam and head swap out of either a new camaro of corvette ls3. But I'm not sure of what all I will need to do so any help would be appreciated. Is it just a basic swap over and all is good or are there some other stuff that needs to be done as well thanks

Should be a basic swap over as long as you reuse your intake, which is a good intake anyways.

I dont think the ls3 heads will work since you dont have a 4.0+ bore

arent ls3 heads square port tho not cathedral ports? and thought u needed a 4in bore to for those. idk for sure but just wondering

I was kinda thinkin that, but how is Justin gonna run L92s on his 5.3?

He cant

I'm just wondering but why would the bore mater and I was thinking I might have to get a different intake that would fit like the one 6.2 in the Denali

Unless the way the valve spacing is on the heads is designed for the 4" bore and would hit the cylinder walls on my stock bore

Who told you this? I bought 243s for my build LOL

LOL you. And Jeff keeps saying you are going to sell the 243s and run L92s.