Overview
Brand: ATK High Performance Engines
Manufacturer’s Part Number: SP68
Part Type: Short Block Engines
Product Line: ATK High Performance Chevy LS3 415 Short Blocks
Summit Racing Part Number: HPE-SP68
UPC: 653517308901
Crate Engine Family: Chevy LS
Actual Engine Displacement: 6.8L/415
Rear Main Seal Style: 1-piece
Crankshaft Material: Forged 4340 steel
Piston Material: Forged aluminum
Short Block Piston Style: Dish
Connecting Rod Material: Forged 4340 steel
Connecting Rod Beam Style: H-beam
Engine Block Material: Aluminum
Main Bolt Style: 6-bolt
Main Journal Type: Chevy LS
Engine Balance: Internal
Oil Pan Included: No
Timing Cover Included: No
Harmonic Balancer Included: No
Flexplate Included: No
Flywheel Included: No
Assembled: No
Remanufactured: No
Quantity: Sold individually.
Notes: +18cc cylinder head volume. 24-tooth reluctor,
ATK High Performance Chevy LS3 415 Short Blocks
ATK High Performance Chevy LS3 415 short blocks are made to handle serious power. The foundation of any high performance engine is a rock-solid short block, so ATK designed and developed these to be just that. They feature a fully forged, balanced, and blueprinted rotating assembly that is available in a variety of configurations to fit naturally aspirated, nitrous, and forced induction builds, as well as those with 24 and 58-tooth cranks.
ATK High Performance Chevy LS3 415 short blocks include the following:
* GM LS aluminum blocks
* Aligned and hone main bores
* Manley 4340 forged crankshaft
* 4.00 in. stroke
* Manley 4340 H-beam connecting rods
* Manley forged pistons
Applications
Make: CHEVROLET
Engine Type: V8
Engine Size: 6.8L/415
Engine Family: Chevy small block Gen III/IV (LS-based engines)
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