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ATK High Performance Chevy LS3 415 Short Blocks

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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

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. st

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

Results 1 - 8 of 8

ATK High Performance Chevy LS3 415 Short Blocks SP67

ATK High Performance Chevy LS3 415 Short Blocks SP67

ATK High Performance Chevy LS3 415 Short Blocks SP67

ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP67

Not Yet Reviewed

Estimated Ship Date: Oct 22, 2025 if ordered today

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Estimated Ship Date: Oct 22, 2025 if ordered today

ATK High Performance Chevy LS3 415 Short Blocks SP68

ATK High Performance Chevy LS3 415 Short Blocks SP68

ATK High Performance Chevy LS3 415 Short Blocks SP68

ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP68

Not Yet Reviewed

Estimated Ship Date: Oct 22, 2025 if ordered today

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Estimated Ship Date: Oct 22, 2025 if ordered today

ATK High Performance Chevy LS3 415 Short Blocks SP69

ATK High Performance Chevy LS3 415 Short Blocks SP69

ATK High Performance Chevy LS3 415 Short Blocks SP69

ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP69

Not Yet Reviewed

Estimated Ship Date: Oct 22, 2025 if ordered today

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Estimated Ship Date: Oct 22, 2025 if ordered today

ATK High Performance Chevy LS3 415 Short Blocks SP70

ATK High Performance Chevy LS3 415 Short Blocks SP70

ATK High Performance Chevy LS3 415 Short Blocks SP70

ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP70

Not Yet Reviewed

Estimated Ship Date: Oct 22, 2025 if ordered today

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Estimated Ship Date: Oct 22, 2025 if ordered today

ATK High Performance Chevy LS3 415 Short Blocks SP71

ATK High Performance Chevy LS3 415 Short Blocks SP71

ATK High Performance Chevy LS3 415 Short Blocks SP71

ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP71

Not Yet Reviewed

Estimated Ship Date: Oct 22, 2025 if ordered today

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Estimated Ship Date: Oct 22, 2025 if ordered today

ATK High Performance Chevy LS3 415 Short Blocks SP71-B

ATK High Performance Chevy LS3 415 Short Blocks SP71-B

ATK High Performance Chevy LS3 415 Short Blocks SP71-B

SHORT BLOCK, LS3 415CI Boost Shortblock 58T

Part Number: HPE-SP71-B

Not Yet Reviewed

Estimated Ship Date: Oct 22, 2025 if ordered today

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Estimated Ship Date: Oct 22, 2025 if ordered today

ATK High Performance Chevy LS3 415 Short Blocks SP72

ATK High Performance Chevy LS3 415 Short Blocks SP72

ATK High Performance Chevy LS3 415 Short Blocks SP72

ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP72

Not Yet Reviewed

Estimated Ship Date: Oct 22, 2025 if ordered today

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Estimated Ship Date: Oct 22, 2025 if ordered today

ATK High Performance Chevy LS3 415 Short Blocks SP74

ATK High Performance Chevy LS3 415 Short Blocks SP74

ATK High Performance Chevy LS3 415 Short Blocks SP74

ATK High Performance Chevy LS3 415 Short Block

Part Number: HPE-SP74

Not Yet Reviewed

Estimated Ship Date: Oct 22, 2025 if ordered today

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Estimated Ship Date: Oct 22, 2025 if ordered today

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