Defric coating (Lubricous film) is applied to the piston skirt, for a reduction in friction and loads as well as improved durability.
4B11 Increased Capacity 2300KIT
4B11 for EVO X
Crown Volume *1
Projection Height *2
Reference C/R *3
Standard head GK 87.0mm t=1.0mm
TODA head GK 88.0mm t=1.0mm
*1:Crown volume is measured "from the piston shoulder"/"from the deck of the block".
*2:Piston shoulder height is measured from the deck of the block.
*3:The compression ratios given above are only to be taken as a guide, measurements are required.
TODA forged piston KIT (ø86.50mm /ø87.00mm)
Special crankshaft (Long stroke, High accuracy dynamic balanced)
I section chrome molly connecting-rods (Fully floating with bush & balanced)
Connecting-rod bearings (Black metal is used. Bearing clearance has been adjusted)