Block: New GM LS3 Aluminum Gen IV Crankshaft: 4340 Forged Steel, Internal Balance, 4.000" Stroke Rods: 4340 Forged Steel H-Beam with 7/16" Bolts, 6.125" Length Pistons: Custom Forged 2618, 11.0:1 Compression w/ 70cc Heads Rings: Plasma-Moly Top, Low Friction Oil, 1.5/1.5/3.0 Warranty: 3 Year, Unlimited Miles Camshaft Kit includes: camshaft, hydraulic roller lifters, roller timing set, thrust plate, lifter dog bones & spring tray—installed   Cam Specs:500hp: .615/.615 Lift, 229/242 Durati...

This is our most powerful Naturally Aspirated LS! This engine makes great torque and horsepower under 7,000rpm with a very stable hydraulic roller valvetrain.  Block: New GM LS7, Billet Steel Main Caps, 4.125" BoreCrankshaft: Smeding 4340 Forged Steel, Internal Balance, 4.125” StrokeRods: Smeding 4340 Forged Steel H-Beam with 7/16" Bolts, 6.125" LengthPistons: JE Custom Forged 2618 Alloy, 11.0:1 Compression, Graphite CoatedRings: Total Seal Plasma-Moly Top, Low Friction Oil, 1.2/1.2/3.0mmCams...