GX200, Clone, Predator, and Other Small GX Wiseco Forged 72mm Two Ring Piston Kit - Optional Compression Heights

Forged aluminum Wiseco two ring piston with 0.640" compression height and .490 wrist pin. Works with ARC .490 wrist pin rods with either clone sized 1.180" rod journal or 1" Briggs "stroker" rods.

Bore: 72mm 

Compression height: 0.640" with optional shorter heights

Wrist pin diameter: 0.490"

Kit includes wrist pin, circlips, and ring set. 

You can use the full 0.640" compression height piston with the 58mm crank in the TC225 block with a 3.595" rod and you'll be at zero deck, or you can use a 59mm crank and you'll be 0.010" above the deck. We recommend you go to a three ring 0.640" compression height Wiseco piston for those two options instead of using a full height two ring.

0.605" option will sit 0.004" under the deck of a TC225 block with a 60mm stroke crank and ARC 3.595" rod.

0.550" option will sit 0.010" under the deck on TC225 blocks with 63.5mm stroke crank and 3.575" ARC rod, OR with 63.5mm stroke crank and 3.525" ARC rod in 72mm bore Tillotson Racing Block. 

In either block, this 72mm piston with a 63.5mm stroke crank will yield 258cc. 

Click here for 63.5mm / 2.500" stroke cranks 

Click here for ARC billet 3.525" x 1" stroker connecting rods

Click here for ARC billet 3.575" x 1" stroker connecting rods