GMM CNC Ported LSA Heads - Pair - "Change Over"

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Now: $1,390.00
Was: $1,699.00

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Frequently bought together:


1 Pair of Complete GMM CNC Ported LSA Heads - Change Over (Limited Stocks)

What you get:

  • 8 CNC ported intake ports
  • 8 CNC ported exhaust ports
  • Ultra sonic process
  • 16 valves ground
  • 8 intake valve seats turned on Newen cnc cutter Multiple angle variable shape
  • 8 Exhaust valve seats turned on Newen cnc cutter Multiple angle variable shape
  • Increased compression ratio with deck face machined

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 off the head = $0.00 no extra charge - (if you are not sure please contact us first)

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

Valve Stem Seals: Please advise if you would like valve stem seals added to your order

Change Over: Please choose from our options below:

  1. Change Over: You can bring your heads in to store and direct swap for a finished set, or send us your heads first and we will send you a finished set back.
  2. Core Holing Deposit: You can pay a core deposit of $1,695.00 which will then be refunded to you when you send your heads back to us - (You must send us your heads no longer than 2 weeks after receiving the ones we send you).
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