MANLEY PLATINUM SERIES Extreme Duty Piston [Bore Size mm 95.5 Grade 1 | Rod Length 6.500" | Displacement 4.23L | Comp Distance 1.153" | Dome Vol (cc) -10 | Comp Ratio 9.25 | Piston Type Dish | Piston Wt/Gms 440] (NISSAN VR38DETT)

2618 high strength material
Offset wrist pin for quiet start-ups
.210" x 2.500" wall Premium Chrome Moly pin (Standard Series) included
9310 alloy .210" wall pin (Extreme Duty Series) included P/N 42546
Turbo Tuff/DLC .250" wall P/N 42745 and .300" wall P/N 42746 upgrades available
Pressure balance groove
Will accommodate +1mm valve sizes
Premium Steel top ring set with Napier second ring and 9-13 lb. tension oil ring included
Round wire locks included

These pistons feature skirt diameters that correspond to the OEM Grade 1, 2 or 3 bores resulting in a piston to wall clearance range of .0032" - .0039". Check the bore grades on the back of your block and order the appropriate quantities of Grade 1, 2 or 3 pistons. (Sold as -1 individual pieces, not sets.)