ET ls7 heads on 402 will it kill low end power and mid
ET ls7 heads on 402 will it kill low end power and mid Ok Wanting to put ET ls7 heads on my 402 thinking the 250 intake runners might kill the street driving low end power. looking for ideas and thoughts
Sorry more info M6 trans / intake ls7 or the fast ls7 if its out by then / hydraulic need help picking out a cam to ? / compression 9.5 or 10 to 1 but running a F1c procharger thinking at 14psi will see with dyno time. max rpm 6500. Want it to be a strong engine down low for just street driving(long high way trips at 1750 rpms) with a hard mid and 800- 1000hp top.
Can we assume that you are talking about the small bore LS7 ET heads? Standard LS7 bore heads won't work. You'll loose too much compression when the valves beat against the liners the first time you turn it over. I haven't seen too much info on the small bore LS7 heads.
I sold a set of 4 inch bore LS7s last year. Real nice pieces. Depending on your cam selection, you should be just fine down low. You're not gonna have a low end torque monster, but its not as if its going to kill it.
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From: Westampton, NJ
Yea id try for a 225CC head...more than enough top end for the big power upstairs but still small enough (on a 402) for low RPM tq production. I dont think you can go wrong with either of the big 3 for their 225 setups.
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You dont have a dyno graph do you? What was your set up?
I was looking at the ls7 heads. Cause i wanted to use the ls7 intake. Would low end power big alot better stepping up to the 427.
Whats the intake CC on ported LS3 heads
I was looking at the ls7 heads. Cause i wanted to use the ls7 intake. Would low end power big alot better stepping up to the 427.
Whats the intake CC on ported LS3 heads
Last edited by BigRich954RR; Mar 11, 2008 at 05:26 PM.
LS3 heads come out to 64 cc with .040 off. The key is to not open up the 260 cc intake runner. The LS7 intake would be nice but-
There is a lot more to head magic than runner size. Not to be evasive but there are so many variables it is hard to pin down. 500/480 rw is somewhat expected beyond that, it gets speculative..
LS7 etp You will not lose your low end with the LS7 4inch bore heads. I know for a fact. My N/A street engine has no issues with a 338/246 cam. Now you also have boost behind it, you would not have an issue. We also offer our LS7 head in a 230cc runner volume with a 2.080 valve. That will definitely work with your setup.
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