I have decided instead of trying to re-work my heads, I am going to start fresh and get a completely new set. So, selling the ones I have.

These heads are 6.0L, Total Engine Airflow (TEA) heads - 317 castings, and came of my '03 Silverado SS. Have been ported to 77cc. They have a .040" stainless wire embedded around the combustion chamber. Great for boosted applications.


Comp 921 double springs
Titanium retainers
2.02/1.55 Ferrera valves

Flow data

lift int exh
.1000 73.1 46.5
.2000 152.0 105.8
.3000 215.8 160.5
.4000 256.0 198.8
.5000 284.5 226.9
.5500 295.7 237.1
.6000 290.1 243.4

These flow numbers were flowed on a 3.90" bore. They would be slightly higher on a 4" bore.

Asking $1500. These heads are over $2500 brand new with the options that have been added.

They have only about 5000 miles on them total.

No core required, so you keep or sell your stock heads.

 

Great price. I would be all over these if I had the money. Guess I'll have to stick with the stock 6.0 heads for now. TTT for ya.

 

Where would this put the compression on the lq9?

 

With the stock compression of a LQ9 being 10:1, this would drop it slightly to about 9.6:1.

If you are building a motor, you could still get your CR in the 10.3-10.5 area with these heads based on piston selection.