***OPEN BOX ITEMS SOLD AS IS NO RETURNS***

None of these parts were assembled. There are minor scratches and swirls on the head of the pistons. From what we know, the machine shop had laid these pistons down on a metal table and caused these minor scratches. These pistons will still run very well with your engine!

NoteIncludes 0.210" Wall Wrist Pin Upgrade.
Item Weight297 g
Shipping Weight (Dimensional)7.000000
Clearance SaleNo
AvailabilityAvailable
Part TypePistons


EngineB18C5
Rod Length5.430" / 137.9mm
Rod Length OversizeStandard Length
Bore Diameter81.5mm
Bore Oversize0.020" / 0.5mm
Stroke87.2mm (Standard Stroke)
Compatible with Stock SleevesYes
Requires Aftermarket SleevesNo
Compression Ratio9.9:1
Pin Size0.827" / 21mm
Included Ring Set46815-4
Included Pin42543-4
Head cc42.7 cc
Face TypeFlat
Dome cc-2.2 cc
Compression Height1.181" / 30mm
BrandManley Performance
Skirt TypeFull Round
Piston Material2618
Carb LegalUnspecified
Wrist Pin Wall Thickness0.210"
Wrist Pin Dimensions.827" x 2.250" x .210"
Pin Material9310 Steel