Engines and Components› Engines, Blocks and Components

ATK ENGINES

NIS - GAS - 2WD - 5 SPEED

$2,086.12

SKU: A040 R61853A

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Description

The ATK HP98 Chevy 350 Base Engine offers 345 horsepower and 400 ft-lbs of torque, featuring an OE block with 4-bolt main, hypereutectic pistons with 9.1:1 compression, and ATK cast iron cylinder heads. It includes a hydraulic roller camshaft with specs of 220/224 @50 .495in/.502ex 110LSA, double roller timing chain, and a Melling high volume oil pump. This engine is designed for a wide range of applications, requiring specific recommended components for optimal performance.

Fitment

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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 R61853A

Videos

ATK review

ATK review
Hp 36 383 stroker from atk engines, open short tube headers first startup.

Hp 36 383 stroker from atk engines, open short tube headers first startup.

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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