southspeed

I'm spinning the novi 1500 max speed right now so I can't just up the boost. I have a btr stage 2 cam which is 227/234 and stock 243's right now. Is the better option 220's and a ported ls6 intake or msd. Or ls3/9 heads and intake? Also will the ported ls6 intake negate the gains from the 220's causing me to buy a fast intake?

realcanuk

Nothing wrong with the stock LS2 intake. I wouldn't change to LS3 heads. Rather go aftermarket to get thicker decks. The money saved keeping the intake could go to better heads. I would go bit bigger than 220's, unless you got a super deal on some.

Unreal

Agreed. And do heads for the safety and sealing, not power. The blower is going to move same air regardless.

southspeed

I was hoping to add power and sealing power ha. So a ported intake and a set of 220's or 225's should be good? I'm assuming I'll make more power at a lower boost number? My car made 675 on 93 and meth. No e85 around here or I would just do that.

Realcanuck, which heads would you go with. From what I've read the bigger port heads are not the best for a stock bore ls2. But then again the ls3's are pretty big.

Unreal

If you only made 675 spinning a novi 1500 at max speed, you have issues. That is an easy 800+hp blower.

southspeed

Stock balancer and a 3.25 blower pulley. This is with a 6l80 and an fti 3600 unlocked on a warm day. For reference an ls3 car right before me made 720 on the exact same setup but a t trim and similar cam and converter. He then made like 820 on e85.

realcanuk

I'm far from an expert on heads. I ran 245s on my stock LS2 because I got a good deal on them. It picked up power and ran great. I don't remember exactly how much and that was with a PD blower. Same heads are on my 402/YSI combo and they work dam well.

winters97gt

245’s are what you want. Helped a buddy put a 402/YSI/245 combo together. It’s making around 1100+ to the wheels.

realcanuk

That's pretty much the combo I'm running.

southspeed

I'll keep an eye out for a set. I haven't looked at a set because reading ls1tech led me toward the 220's or 225's.

algZO6

i run the 220s and have had great luck with them.

Unreal

So get what you find cheap. If al can crack off 8s all day on 220s it just further proves the point that heads are more for sealing than massive flow and hp. For this guy's setup I would figure out why it isn't making 750+ as is before touching heads.

helga203

There's guys pushing over 1000hr with stock 243 heads ls1tech. Luke guys said get the max hp with this set and change the heads would be cool to see if it would make that much of a difference. I forget his name but he was having problem with lower then excepted hp He went from stock heads to after market heads and only fain 20 hr with no other changes I'll try to fine the thread it's on hear.

algZO6

ive also hit 30 psi with my 220s and did not push any water.

southspeed

gnx7

I think the TFS 220's work well on smaller displacement setups just fine
7 second alum 5.3 Nova
http://www.dragzine.com/news/video-n...t-driven-nova/

winters97gt

He’s running a smaller pulley, and doesn’t have the drivetrain loss you do on the dyno being his is a T56. He also has 2 inch headers. He said he wanted a max effort YSI build, RPM everything, DSS axles etc and cost wasn’t an issue.

realcanuk

I meant 402/YSI/245s. May be some other differences but cmon, you can do better than 1100 on a max effort build..

winters97gt

It’s over 1100. Pretty much the limits of the stock LS2 intake for a max effort pump(e85) car.