About
About
The porting on these kits is now done by Doug @ ESP! (Earth Surfer Products)
This kit has been RACE PORTED - intake, exhaust, and transfer ports have been professionally enlarged/reshaped for more fuel/air flow and hence more power. In addition, the squish on this cylinder has been modified to accommodate the 1mm stroker crank (part dd532, listed in the "also purchased with this item" at the bottom of this page.
The standard GP460 engine is 42mm bore, 33mm stroke - with this kit, you should run the +1mm (34mm) stroker crankshaft, which pumps the cc's from 45.7 to 47.1cc, an increase of 1.4cc.
Includes cylinder, piston, piston ring, and snap ring set, as pictured. +1mm stroker crankshaft sold separately.
This kit has been RACE PORTED - intake, exhaust, and transfer ports have been professionally enlarged/reshaped for more fuel/air flow and hence more power. In addition, the squish on this cylinder has been modified to accommodate the 1mm stroker crank (part dd532, listed in the "also purchased with this item" at the bottom of this page.
The standard GP460 engine is 42mm bore, 33mm stroke - with this kit, you should run the +1mm (34mm) stroker crankshaft, which pumps the cc's from 45.7 to 47.1cc, an increase of 1.4cc.
Includes cylinder, piston, piston ring, and snap ring set, as pictured. +1mm stroker crankshaft sold separately.