ATK SP73 LS3 415CI Stroker Short Block -4cc Flat Top Pistons 58 Tooth

Description

Engine Specifications:
• Block: New GM L92/LS3 Aluminum
• Year Range: 2007-2013
• Bore/Stroke: 4.065” x 4.000”
• Displacement (cu.in): 415
• Crankshaft: Manley 4340 forged 58 tooth reluctor wheel
• Rods: Manley 4340 forged H beam 6.125” ARP 8740 bolts
• Pistons: Manley 2618 forged -4cc flat top moly skirt coated
• Rings: Plasmamoly
• Compression Ratios: 64cc = 11.8:1 / 68cc = 11.3:1 / 72cc = 10.8:1 (can vary due to deck height/gasket thickness)
• Camshaft Bearings: Installed & Clocked to OEM Position
• Freeze Plugs: Installed & Sealed
• Oil Galley Plugs: Installed & Sealed

Recommended Components:
• Balancer- Internal balance
• Flex plate/ Flywheel- Internal balance
• Head Gasket: .051” or per application
• Oil Pump: Melling #10296 with high pressure spring

Engine Info:
• Oil: 10W40 Non synthetic for first 3000 miles
• Oil Filter: Wix or K&N per application

Notes:
• DOD holes are NOT plugged. If your application does not require DOD/AFM you must plug the oil fill holes. Failure to do so will cause an internal oil leak causing low oil pressure problems.