72mm Bore Clone Block - 136.8mm Deck Height - TC225

Reinforced tall deck GX200 clone block with 72mm bore. Deck is taller than the 135.5mm Tillotson blocks so you can fit a longer stroke with a long enough rod for an acceptable rod/stroke ratio.   Combine with our 59mm crank, ARC 6269 rod, and a "550" (23mm/0.906" compression height) flat top piston and it will sit 0.005" below the deck, which works perfectly for a 0.035" head gasket. Add our Stage 1 head and intake combo and a 308 cam for an inexpensive and SNAPPY 240cc combo with loads of torque! Bore: 72mm \ 2.835" Deck Height: 136.8mm \ 5.385" Weight: 5.68lbs **Rotating assembly combos will all need some clearancing on the top and bottom of the base of cylinder, the roof and front wall of the crankcase. 58mm shouldn't need grinding between the lobes of cams preclearanced for the Predator 224, but you will need to grind there for 59mm and 60mm cranks. It may also be necessary to grind just a bit on the crank counterweights if using a "550" piston and shorter rod.** Math for computing