MANLEY TURBO TUFF DESIGN Standard Pistons, -11cc DISH [Bore Size 3.700" | Rod Length 6.657" | Stroke 4.165" | Comp Distance 1.220" | Piston Wt/Gm XXX] (1991- FORD 5.4L MOD)

2618 high strength material lightweight design
1.2mm offset wrist pin design for quiet start-ups. Mimics OEM design
Round wire locks
Perfect ring groove to skirt squareness
Pressure balance groove
1.5, 1.5, 3.0mm ring package
Vertical Gas Ports designed for high HP Race Engines
9310 alloy .210" wall pin included P/N 42507

The root diameter of the ring grooves accommodates Manley rings and others which have the following radial thickness Top: .156", 2nd: .152", Oil: .145"