CHEVY 350 PER ALUM MID DR

Name: CHEVY 350 PER ALUM MID DR
Brand: ATK ENGINES
SKU: A040 HP91M
Price: 4376.12 USD
Availability: InStock

$4,376.12

SKU: A040 HP91M

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Description

The ATK ENGINES HP91M is a 5.7L/350ci Chevy Small Block V8 engine that produces 365 HP. It features aluminum heads, a cast iron block, and is internally balanced. It has a 1-piece rear main seal, hydraulic roller cam, and comes with an intake manifold (carbureted style), distributor, oil pan, valve covers, timing cover, water pump, harmonic balancer, and flexplate.

Fitment

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Specifications

Brand	ATK ENGINES
Part Number	A040 HP91M

Videos

ATK Performance crate engine review

ATK 350 Engine Swap Review

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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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