GT-5 SUPER U-Port cylinder body. "X" cylinder
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This GT-5 SUPER cylinder body is the "X" type. Some people hate these cylinder bodies, others love them.

They are beefy. Thick casting. Ports are small, so these cylinder bodies need more porting work than other styles.

Transfer ports are well balanced (even), however, the transfers are a bit retarded.

This is one of the rare, old style cylinders that could benefit from transfer port bevels placed on the piston crown.

This cylinder is designed to run on the GT-5 SUPER ONLY.

Do not order this cylinder body if you do not own a GT-5 SUPER engine from CR Machine.

These cylinders are precut, and extra short. They won't work well for other motor types.

Again, the GT-5 SUPER platform brings improved high RPM performance with less porting work.

Raising exhaust port is not necessary with the GT-5 SUPER platform.


Porting recommended for this cylinder:

First step is most important, last step is least important:

  1. Advance intake timing by lowering intake port or by piston skirt modification (2mm minimum)
  2. Widen exhaust port.
  3. Advance transfer port timing with 1 mm bevels on piston crown (X cylinder only).
  4. Smooth and make both transfer ports identical.
  5. Port match intake and exhaust manifolds/headers.




GT-5 SUPER U-Port cylinder body. "X" cylinder

Price: $35.00
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