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ATK ENGINES

GM 4L65E 4SPD

$2,003.28

SKU: A040 7233A-MBV

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Professional / shop required

Overview

High-performance engine block for Chevrolet 5.0L marine applications. The ATK Marine Engine Block Long is engineered specifically for marine applications, providing reliable performance for Chevrolet 5.0L and 305 cubic inch engines. This engine block features a robust cast iron construction for both the block and cylinder heads, ensuring durability and longevity in demanding marine environments. With a horsepower output of 230, this engine is designed to deliver maximum performance while maintaining efficiency. Built with a flat tappet cam and a steel front cover, the ATK Marine Engine Block is optimized for marine use, making it suitable for various boating activities. The inclusion of a one-piece rear seal enhances the engine's reliability by minimizing oil leaks. This product does not require a core charge, simplifying the purchasing process for customers. ATK's commitment to quality ensures that this marine engine block meets the rigorous demands of boating, providing peace of mind for boat owners. Whether for recreational or commercial use, this engine block is a dependable choice for enhancing your vessel's performance.
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GM 4L65E 4SPD

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandATK ENGINES
Part NumberA040 7233A-MBV
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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Returns & Fitment

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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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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