Engines and Components Engines, Blocks and Components

ATK ENGINES

LS3 415CI STROKER

$7,640.16

SKU: A040 SP67

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Description

This ATK Engines High Performance Short Block GM LS 415ci is designed for all-motor builds requiring higher compression while remaining pump-gas friendly, supporting up to 700hp. It features a new 2007-2013 GM L92/LS3 Aluminum Block, Manley 4340 forged crankshaft, Manley 4340 Forged H Beam Rods, and Manley 2618 Forged dished pistons. The short block has a bore/stroke of 4.065" x 4.000" resulting in 415ci displacement. It has a compression ratio of 11:1 with 64cc heads, 10.6:1 with 68cc heads, and 10.2:1 with 72cc heads. DOD holes are not plugged.

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Specifications

BrandATK ENGINES
Part NumberA040 SP67

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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