cam and head swap 243 heads and ls6 cam

[hektikdenali]

Hello new member here I have a couple of questions.I'm been think about installing Ls2 heads a ls6 cam and wondering is this a good combo need advice! Its going on a 03 denali lq4 thanks please reply

[hektikdenali]

Second question how much of a shot is safe for that setup?

[aj06bolt12r]

Short answer, yes its a good combo but i would get a little bigger cam, dont think you will notice too much difference with the z06 cam. JMO. Im not a nitrous expert but the answer I most often see to your nitrous question is that a 150 wet shot is about the limit to feel "safe" with that set up.

[pl4yboy]

I feel safe with 150-175. Many have run 200 on stock shortblocks, but I won't. The Z06 cam you're talking about isn't big enough to be worth the time in my opinion. The LS2 heads however (243 casting) are going to give you a nice noticeable bump in compression.

[hektikdenali]

Ok thanks for the help ill scrap the zo6 cam and get a comp cam just making sure got it dirt cheap from a friend. So with the following will I be seeing numbers around 450 HP with LT,s 243 head's comp springs, cold air intake and of course a big comp cam with a 150 zex wet shot?

[skeet]

Ok thanks for the help ill scrap the zo6 cam and get a comp cam just making sure got it dirt cheap from a friend. So with the following will I be seeing numbers around 450 HP with LT,s 243 head's comp springs, cold air intake and of course a big comp cam with a 150 zex wet shot?

with a 150 shot you'll be close.

[Frenchy]

Probably be closer to 500 on the ground depending on cam choice.

[pl4yboy]

Probably be closer to 500 on the ground depending on cam choice.

Agreed.