Wanted: Pictures of LS7 heads or engine 
Wanted: Pictures of LS7 heads or engine
TECH Addict
Joined: Mar 2004
Posts: 2,336
Likes: 0
From: Fat Chance Hotel
Three per cylinder. Two intake, one exhaust. Will improve flow drammatically, but GM apparently has problems keeping it together. The rocker geometry tends to break something topside after prolonged abuse.
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TECH Enthusiast
Joined: Jul 2002
Posts: 653
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From: Mannheim, Germany
As long as the exhaust spring stays intact, the exhaust pushrod would be fine. These are gonna make some serious power! It's cool how GM sticks with the pushrods and makes them work well with good designing.
Teching In
Joined: Aug 2004
Posts: 25
Likes: 0
Why doesnt GM just break down and go to a DOHC V8 or even better V10. I mean ****, if ford can do it, anybody can! they might as well go back to a carburator. By the way...how much power is the LS7 supposed to put out?
Originally Posted by DH01Z28
Why doesnt GM just break down and go to a DOHC V8 or even better V10. I mean ****, if ford can do it, anybody can! they might as well go back to a carburator. By the way...how much power is the LS7 supposed to put out?
LS7 is rumored to be in the neighborhood of 500hp/500tq, which would make it the highest factory-rated hp engine that GM's ever used in a production car.
Wouldn't you rather see GM building a stout pushrod motor with this kind of factory hp, than a "high-tech" DOHC wheezer that needs a blower just to be viable on the street (cough, cough 4.6L)?
Last edited by Fulton 1; Aug 27, 2004 at 07:53 AM.
Dont forget probably the biggest factor in staying with a pushrod motor is that a DOHC motor simply will not fit under the hood of a vette. Sure they could put one hell of a cowl on, but as most of the vette buyers are older there probably looking to stick with a more refined-less flashy look. Just my two cents
Mike
Mike
Pushrods for me thank you. 
