Manley Chevy LT1 Direct Injected Series 4.00in Stroke 4.070in Bore -10 cc Dish Extreme Duty Pistons

560270CE-8

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 1.2, 1.2, 3mm Total Seal ring package and moly coated skirts for ultimate performance. Roundwire locks and pressure balance grooves are included with every set at no additional charge.

Premium Chrome Moly wrist pins are included with the Standard Series and 9310 Alloy wrist pins are included with the Extreme Duty Series.

Specifications (Stroker Series):

• Bore Size: 4.070"
• Over Size: +.005"
• Rod Length: 6.125"
• Stroke: 4.000"
• Comp. Distance: 1.115"
• Dome Volume (cc): -10
• Comp. Ratio (LT1/LT4): 11.7 / 10.8
• Piston Type: Dish
• Piston Wt/Gms: 442
• Included Ring Set
• Ductile Iron Top Rings: 46017-8
• Premium Steel Top Rings: 46017ST-8

Fitment:

• Chevrolet LT1 | LT4

Note:

• Compression ratios are calculated at 0.00" deck clearance, a 9.240" deck height, 60cc combustion chamber, and a .051" thick compressed head gasket. 9310 alloy pin (Extreme Duty Series) included: P/N 42542 2.300" x .210" wall (4.065"-4.080" bores) and P/N 42528 2.500" x .210" wall (4.125"-4.130" bores)
• Compression are calculated at 0.00" deck clearance, a 9.240" deck height, with a 59cc LT1/65.5cc LT4 combustion chamber, and a .051" thick compressed head gasket