Engines and Components› Engines, Blocks and Components

ATK ENGINES

NV4500- GAS - 4WD - 5 SPE

$2,647.23

SKU: A040 R2661

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Professional / shop required

Description

ATK High-Performance GM 5.7L 350ci Stage 2 Crate Engine. Remanufactured long block with roller camshaft, cast steel crankshaft, 5.7" connecting rods, hypereutectic pistons, and Vortec cylinder heads. Designed for vehicles originally equipped with roller camshafts. Requires 750 CFM carburetor, external balance flexplate/flywheel, and 2000-2200 RPM stall converter (automatic). Dyno-tested. 24-month/24,000-mile warranty.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandATK ENGINES
Part NumberA040 R2661

Videos

Part 2 Jegs ATK Vortec Crate Engine Tear Down

Part 2 Jegs ATK Vortec Crate Engine Tear Down
ARE A.T.K. ENGINES AND HEADS ANY GOOD? EVEN MORE GRIEF FROM JEGGS

ARE A.T.K. ENGINES AND HEADS ANY GOOD? EVEN MORE GRIEF FROM JEGGS

Buy with Confidence

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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