Engines and Components Engines, Blocks and Components

ATK ENGINES

LS 408 SHRT BLK DISH 58T

$6,226.53

SKU: A040 SP36-G4

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Description

This ATK SP36-G4 short block assembly includes a seasoned 6.0L Iron Gen IV block, Manley 4340 forged 58 tooth reluctor wheel crankshaft, Manley 4340 forged H beam 6.125” ARP 8740 bolts rods, and Manley 2618 forged -29cc dished moly skirt coated pistons. It does not include cylinder heads, camshaft, or other external components. It has a bore/stroke of 4.030” x 4.000” resulting in a 408 cu.in. displacement. Compression ratios vary based on cylinder head volume (64cc = 9.3:1 / 68cc = 9.0:1 / 72cc = 8.7:1).

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Specifications

BrandATK ENGINES
Part NumberA040 SP36-G4

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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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