L92 vs Ls7
Thread Starter
Joined: Aug 2005
Posts: 2,649
Likes: 1
From: Mont Belvieu, TX
L92 vs Ls7 Ok guys, I am shipping my block and pistons out next week to get my shortblock built. Finally getting started on my own private monster 
. My question is this: I only want to spend about 3K on heads. Would I be better off going with a set of basically stock LS7 heads, maybe some exhaust porting and milling, or go with a set of fully ported L92's? With a chamber size in the mid 60's and a .040 gasket I should end up with a 11.5~ 12-1 scr. My goals for the motor are 600 rwhp. And no I am not just looking for a Dyno queen, however that is what I need to run the times I want at the track. I am looking to get into the 9's on a 150 wet shot. The reason I say wet is 99% of the time I will be running with no bottle and I don't want to be running around pig *** rich on a nitrous tune. If I have any flawed logic or I am making unreasonable goals please let me know. I am still a relative newbie but I do 
a LOT. 
I look forward to a pretty lively conversation on this 
. My question is this: I only want to spend about 3K on heads. Would I be better off going with a set of basically stock LS7 heads, maybe some exhaust porting and milling, or go with a set of fully ported L92's? With a chamber size in the mid 60's and a .040 gasket I should end up with a 11.5~ 12-1 scr. My goals for the motor are 600 rwhp. And no I am not just looking for a Dyno queen, however that is what I need to run the times I want at the track. I am looking to get into the 9's on a 150 wet shot. The reason I say wet is 99% of the time I will be running with no bottle and I don't want to be running around pig *** rich on a nitrous tune. If I have any flawed logic or I am making unreasonable goals please let me know. I am still a relative newbie but I do a LOT. I look forward to a pretty lively conversation on this I personally don't know. Just see the talk thrown around. Hopefully someone with experience on this will chim in for ya.
But on the other side you would be unshrouding the L92's nicely.
But on the other side you would be unshrouding the L92's nicely.
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Nope they are stock in respects to porting. I have a second set that I will probably have ported sometime once I start seeing #'s off these things and people start figureing out what really works. I have all winter.
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This will be my first winter without my car and it will suck. Hopefully next spring though 
I would stick with the L92's for that budget.... To make LS7 heads up to spec with a good valve job and durable valves is going to take up most of that budget of yours and that's without the castings.
Bret
Bret
Thread Starter
Joined: Aug 2005
Posts: 2,649
Likes: 1
From: Mont Belvieu, TX
Bret, is there something wrong with the factory valves? I was planning on going with factory intake port on the LS7's and just do some exhaust work so that I wouldn't need to go with such a huge split on my cam. Is my logic flawed here? What about the ET ls7's? I know that they are a little more, $3200 i believe, as long as I don't have to use the Jesel system, I believe I could swing them. I am open to almost any suggestions. Also really interested on seeing what the Warhawks do. Does any one else see valve shrouding as a problem with the LS7 heads?
Originally Posted by Stang's Bane
Bret, is there something wrong with the factory valves? I was planning on going with factory intake port on the LS7's and just do some exhaust work so that I wouldn't need to go with such a huge split on my cam. Is my logic flawed here? What about the ET ls7's? I know that they are a little more, $3200 i believe, as long as I don't have to use the Jesel system, I believe I could swing them. I am open to almost any suggestions. Also really interested on seeing what the Warhawks do. Does any one else see valve shrouding as a problem with the LS7 heads?
Bret