Does his groove improve LS7 engine as well?

or does it only apply to older engines?

The LS series heads combustion chambers are far more efficient than the older designs. Hacking up a new set of heads from a $14000 engine seems idiotic to me.

I could not have put it any better, RippinRon

Vince

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Hmm, sitting here with my mouth zipped shut!!!! LOL

If I weren’t so foolish, I would do the same!


I haven’t had an opportunity to do any work on the LS7 engines; I personally
don't know anyone that has one. It’s an excellent high performance engine
that responds well to modifications so I’m told.

I do plenty of work on the LS1, both production and aftermarket heads. They
respond to porting and the grooves very well.

Can I be dumb and ask what this groove is?

Steve

Hi Steve. It's new to lots of people. Very interesting concept.

Here is one link from a while back.

and another one.

Mark

Thanks Jmark, let the reading begin!

Steve

Bumping this post over the deleted double of it.

tom

To automotive breath:


So do you think it's possible to improve upon stock LS7 engine using the grooves?

Red, what in gods green earth is the current issue you have with the stock LS7 head that I know for a fact will run 12:1 on pump gas from Cleveland to Little Rock Arkensas in 95 degree heat and stop and go traffic AND makes well over 500 SAE corrected flywheel horsepower with about 27 degrees of total timing, with the AC running.

Grooves in this type of cylinder head will do no good. It is a superb head as is. Not a cylinder head you'd want to hack up.

Do yourself a HUGE favor one day and go to a car show and spend some time at the GM Performance Parts trailer and exhubit area. Many times they have their LS cylinder head engineers there. They are a wealth of knowledge and have always been willing to share information.

Red, I'm fairly certain the LS7 engine can be improved with the grooves.

Do you have a LS7? If so what are your plans for it?

Not to mention 28mpg to boot.

I was under the impression the LS7 has a 11:1 compression ratio, not 12:1.

What's wrong with taking a good head and making it better? I don't know of any head that can't be improved. Cut the thing up and see what you can do.
Bob