Excessive ZO6

Long story short is I have a set of 035 Heads that where purchased used back in 2008. I never installed them on my project car as I found another set that worked better for my needs. I do not remember how many miles where on the heads but they do have some nice parts in them. I had them professionally inspected so I could list all the specs for you.

64cc Combustion Chambers
Upgraded 2.08 Intake Manley Valves
Upgraded 1.60 Exhaust Manley Valves
Dual Valve springs with Titanium Retainers (possibly Patriot Gold or Manley)

The do have O-Rings/Fire Rings machined into them I had planned to have these machined out before sale. I wanted to post these for sale first so you could choose your desired Combustion Chamber that would work best for your situation. I was told they should seal just fine with the rings left in them if running a GM MLS gasket but I would suggest getting them milled first.

These heads normally are great for boosted applications but since they have been milled before (originally 71-72cc) they will be better suited for NA or Nitrous.

Sale price is $675 shipped. This includes being professionally milled to your desired CC below 64cc.
I tried to include all the info I could think about, if you have any questions please let me know.

427ZM

I'm not familiar with the 035 casting, what motor were these used on?

Excessive ZO6

It was the 6.0L LQ9 motor.
They are said to be the smoother casting between the 317 and 035 big CC heads but unfortunately these are no longer 72cc.

Casting Number 317, 035
Head: 2001+ LQ4 and LQ9 6.0 Liter Truck
Material: Aluminimum
Part Number:
12562317 -LQ4
12572317 -LQ9
12572035 -LQ9
Combustion Chamber Volume: 71.06cc
Compression Ratio: 10:1 LQ9 Flat top pistons
Compression Ratio: 9.6:1 LQ4 Dish piston
Intake Port Volume: 210cc
Exhaust Port Volume: 75cc
Intake Valve Diameter: 2.00 inches
Exhaust Valve Diameter: 1.55 inches

Excessive ZO6

Up to the top... Nice set of heads looking for a good home. Pick your Combustion Chambers!