PLATINUM SERIES LIGHTWEIGHT PISTONS
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. Roundwire locks, tool steel wrist pins and pressure balance grooves are included with every set at no additional charge. These 18cc DISHED pistons have a 1.220" compression height and weigh 390 grams and are designed to fit all 4.6 2V or 4V, and 5.4 2V, 3V, and 4V engines. FOR YOUR COMPRESSION RATIO WITH THESE PISTONS PLEASE SEE THE CHART BELOW
NOW WITH FULLY COATED SKIRTS!
Dish Volume: 18cc
Top Ring: 1.5 mm, .220" down
Second Ring: 1.5 mm
Oil Ring: 3 mm
Deck Thickness: .185"
Pin Included: tool steel P/N 42207 ( .150" wall, 106 grams, 2.500" long )
Round Wire Locks: P/N 42270 - .061" wide
Recommended Piston Clearance: .003" measured .850" from bottom of the oil ring
COMPRESSION RATIOS | 2V NON PI | 2V PI | 4V ALL |
18cc Dished with 4.6 Engine | 8.53:1 | 9.54:1 | 8.44:1 |
18cc Dished with 5.4 Engine | 8.15:1 | 8.91:1 | 8.08:1 |
