New GMM CNC Ported LS3 Heads Set Complete "Outright"

Description

2 Complete Ls3 GMM CNC  Head - (Limited Stocks)

What you get

• CNC ported intake and exhaust port
• 8 valve stem seals
• 8 retainers
• 16 valve locks
• 8 light weight LS3 valves
• 4 intake valve seats turned on Newen cnc cutter Multiple angle variable shape
• 4 Exhaust valve seats turned on Newen cnc cutter Multiple angle variable shape
• Optional increased compression ratio with deck face machined. 

Click here for more information on our CNC heads

If you are looking for that extra edge or, more precisely, added power, then CNC technology will give you the results you need.

In fact, the cylinder head is one of the most, if not the most, important facets of engine horsepower.

GMM Racing Heads have been supplying cylinder heads to major race teams 

They have led the industry by providing superior performance cylinder heads to a broad cross-section of the racing world.

Upgrade Options

Decking: Please choose how much you want decked of the head (if you are not sure please contact us first)

Valve Springs: Please advise if you would like valve springs added to your order

Class Race Option: These are purpose selected castings from our extensive inventory of heads within our workshop.

Due to the casting process during manufacture,  some heads have more material thickness in the optimal places which allow a better porting procedure.

Race Class heads also are subject to extra hand blending of ports and valve seats.

Select this if you are after the ultimate head if winning races is in your DNA