2020 + GT500 CNC Cylinder Head Porting

Let MMR take your 2020+ GT500 to the next level by CNC porting your cylinder heads.

When you send MMR your GT500 cylinder heads we will fully CNC port both the intake and exhaust ports to our most recent specs. Flow is greatly increased over all stages and our port designs are both dyno and track proven. HP and TRQ are both greatly increased with zero sacrifice in reliability or performance!

Finally the combustion chamber is reshaped to unshroud the valves and spark plug for reduced chance of detonation and increased cylinder head performance.

Valves are pressure tested and lapped as needed prior to reassembly to ensure a perfect seal.

Price is per pair

Select the option below for boxes and MMR will send you 2 boxes and PRE-PAID shipping labels to make sending your heads to MMR a breeze. Simply place your heads into the boxes we send you, place the tags on the box  and hand them to your UPS driver or local UPS store or hub and MMR will handle the rest!!

Select your Options below:

  • Model: CNCGT500
  • Manufactured by: MMR

$1,680.00
Sale: $1,428.00
Save: 15% off

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