Hop Up Kit, GX200 & 6.5 OHV Clone, Stage 4 Our Price: $617.00 Hop Up Kit, 212 Predator OHV (Non-Hemi), Stage 4 Our Price: $518.00 Hop Up Kit, 224cc Predator, Stage 3 Our Price: $332.00 Engine Kit, GX390/420, 420cc, +.200 Billet Crank, 88mm Forged Piston Our Price: $923.00 Engine Kit, 214-236cc, 2.310 Billet Stroker Crank with Wiseco Piston: GX200, Predator, & Clone Our Price: $523.00 Engine Kit, 202cc, 2.186 (+.060) Stroker, 2.68 Bore, Honda Crank & Piston Our Price: $291.00