MANLEY "STREET MASTER" SERIES Forged Aluminum Pistons, -18cc SPHERICAL DISH [Bore Size 3.582" | Rod Length 5.993"/6.657" | Stroke 3.543"/4.165" | Compression Distance 1.220" | Piston Wt/Gms 379 | Piston & Pin Wt/Gms 485] (FORD 4.6L & 5.4L MOD)

Perfect blend of economy and high performance
1.2mm offset wrist pin location for quiet start-ups. Mimics OEM design
Perfect ring groove to skirt squareness
Pressure balance groove
2.500" length Premium Chrome Moly pin included with round wire locks
Full banded skirt design for increased skirt stability

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

The pistons above will also work for the 6.8L V10 modular