416" Specs:
Block: New GM LS3 Aluminum, 4.065" Bore
Crankshaft: Smeding 4340 Forged Steel, Internal Balance, 4.000" Stroke, 58x
Rods: Smeding 4340 Forged Steel H-Beam w/ ARP2000 Bolts, 6.125" Length
Pistons: Forged Pistons, 11.2:1 Compression w/ 68cc Heads
Rings: Stainless Steel Top, Low Friction Oil, 1.2/1.5/3.0
Warranty: 3 Year, Unlimited Miles

427" Specs:
Block: New GM LS7 Aluminum, Billet Steel Main Caps, 4.125" Bore
Crankshaft: Smeding 4340 Forged Steel, Internal Balance, 4.000" Stroke, 58x
Rods: Smeding 4340 Forged Steel H-Beam w/ ARP2000 Bolts, 6.125" Length
Pistons: Forged Pistons, 11.2:1 Compression w/ 70cc Heads
Rings: Stainless Steel Top, Low Friction Oil, 1.2/1.5/3.0
Warranty: 3 Year, Unlimited Miles

441" Specs:
Block: New GM LS7 Aluminum, Billet Steel Main Caps, 4.125" Bore
Crankshaft: Smeding 4340 Forged Steel, Internal Balance, 4.125" Stroke, 58x
Rods: Smeding 4340 Forged Steel H-Beam w/ ARP2000 Bolts, 6.125" Length
Pistons: Forged Pistons, 11.5:1 Compression w/ 70cc Heads
Rings: Stainless Steel Top, Low Friction Oil, 1.2/1.5/3.0
Warranty: 3 Year, Unlimited Miles

Cam Specs:
500hp: .615/.615 Lift, 229/242 Duration @ .050”, 112 LSA
600hp: .618/.615 Lift, 233/250 Duration @ .050”, 113 LSA
650hp: .623/.615 Lift, 245/256 Duration @ .050", 113 LSA

Camshaft Kit includes: Smeding Forged Camshaft, Link-Bar Hydraulic Roller Lifters, 4x Billet Timing Set, GM Thrust Plate—Installed

Sealed-Up Kit includes: Melling 10295 Oil Pump, GM Teflon Rear Main Seal Cover, GM Gen IV Front Timing Cover, GM LS3 Valley Cover & Smeding Stroker Oil Pan—Installed

All of our engine packages are extremely flexible and can be customized! If there is an option you would like and do not see, please call us at 210-338-8585.