MANLEY PLATINUM SERIES Lightweight Pistons, -31cc Dish [Bore Size 4.165" | Stroke 4.250" | Compression Distance 1.315" | Pin Diameter .927" | 64cc 9.9 | 66cc 9.7 | 70cc 9.4 | 72cc 9.2 | 78cc 8.8 | Piston Wt/Gms 493 | Piston & Pin Wt/Gms 611] (Warhawk & RHS LS)

Manley pistons are machined of high strength 2618 material. Each design is lightweight yet robust enough to deliver long service life. Perfect ring groove to skirt squareness is achieved through our unique "one fixturing" manufacturing method that assures maximum horsepower. We utilize a proven offset wrist pin design, a 1.5, 1.5, 3mm Total Seal ring package and moly coated skirts for ultimate performance. Roundwire locks, tool steel wrist pins and pressure balance grooves are included with every set at no additional charge.

Note: Compression ratios are calculated at 0.00" deck clearance, a 9.240" deck height, and a .042" thick compressed head gasket.

Rod Length Note: Above pistons are intended to be used with a 6.300" rod length in the RHS block and with a 6.350" rod length in the Warhawk block.