dezlfrek

iTrader: (1)

so what head should i go to? I burned a valve on my stock 243 heads so Im going to upgrade. What should i get? procomp cnc heads, l92, lsa????

dezlfrek

iTrader: (1)

any suggestions?
will l92 heads work with my little bore and ls9 gaskets?
how about pro comp cnc ls3 heads?

JoeNova

Rectangle port heads won't fit your bore. So L92/LS3 etc are out. As far as stock castings, 243/799 flow the best but have the highest compression. I guess it depends on what you're looking to spend. Lots of head porters out there do good work for a reasonable price.

DEFYANT

I think your best best would be a 243/799 head. I know Mast makes a small bore cathedral head, but I think its 3.9"

dezlfrek

iTrader: (1)

so im assuming the valves are to big in the rectangular port heads.. even running the ls9 gaskets..
dam i guess im going to be stuck with 243/799 heads it sounds like..

JoeNova

You can have them CNC ported for about half the price of aftermarket heads (and a third of the price of MAST heads).

http://www.advancedinduction.com/LSX...cGMLS2Head.php
http://www.advancedinduction.com/LSX...cGMLS2Head.php
http://www.advancedinduction.com/LSX...cGMLS2Head.php

http://www.totalengineairflow.com/pr...s2ls6-stage-1/

yeah I'm probably just gonna stop there. I could go on for a LONG time...

dezlfrek

iTrader: (1)

thanks Joe..

dezlfrek

iTrader: (1)

so i am looking for some ported 243's or 799's if anyone has some.
or some afr 205's or trickflow's...

dezlfrek

iTrader: (1)

would edelbrock 245's work on my motor?

Exidous

iTrader: (11)

Almost certainly not. If the valves are any bigger than a stock 2.0 intake valve it will probably not work.

But it all depends on who does the cnc. Either way, there are many other cheaper routes. With those you are paying for the heads (750 each) plus the cnc work and parts to finish them.

stock48

iTrader: (17)

To be honest a set of mild ported 799/243 heads are plenty for 1000 + hp on that size engine. All you are going to do is kill the response and low end power by going to a larger runner. The trickflow 205 might be a decent head if it doesn't raise your compression too high. I would not put a 215+ cc head on an engine that size if it were up to me.

LILHEMI

lol fix your 243 and turn up the boost. plenty of guys making 700-800 whp on untouched 862s so nothing wrong with 243s.

dezlfrek

iTrader: (1)

have a set of hand ported 243's coming with manley valve.. we will see how it runs back to back comparison at 14psi..
thanks for the input guys.