Buy ATK High Performance Engines Crate Engines HPLH6N Online
Experience the ultimate balance of reliability and raw performance with the ATK High Performance Engines Crate Engines HPLH6N. This 5.3L LS crate engine is precision-engineered to breathe new life into your vehicle, delivering a smooth yet aggressive power delivery that makes every drive unforgettable. Order yours today and feel the difference of a professional-grade build! When it comes to versatility and strength, the 5.3 LS crate engine stands alone. The ATK HPLH6N is not just a replacement motor; it is a meticulously remanufactured powerhouse designed for enthusiasts who demand more. Whether you are upgrading a classic truck or finishing a custom swap, this crate 5.3 LS provides the modern efficiency and durability required for today’s roads.
By choosing this 5.3 L crate motor, you are eliminating the guesswork of a junkyard find. ATK High Performance Engines Crate Engines HPLH6N. Every unit undergoes rigorous testing and machining to ensure it exceeds factory standards. ATK High Performance Engines Crate Engines HPLH6N This performance 5.3 crate engine is built with high-quality internal components, providing a significant boost in horsepower and torque over stock configurations, making it a favorite for those seeking a reliable 6.2 engine alternative with a smaller footprint.
Overview
Product Specifications
- Displacement: 5.3L / 323 C.I.D.
- Horsepower: Approx. 385 HP
- Torque: 370 ft-lbs
- Compression Ratio: 9.5:1
- Block Material: Cast Iron (Standard LS Style)
- Crankshaft: Nodular Iron
- Compatibility: Fits most GM LS-swap applications (1997–Present)
Why Choose the ATK HPLH6N?
Choosing a performance 5.3 crate engine offers the perfect middle ground between a standard 6.0 LS engine and the high-end 6.2 LS engine models. It provides the legendary LS reliability in a package that is easier on the cooling system and fuel budget. Unlike a standard 6.2 LS3 crate engine, the 5.3L variant offers a more compact efficiency that is ideal for tight engine bays while still maintaining the ability to accept most LS3 6.2 crate engine performance bolt-ons.
Frequently Asked Questions
Does this engine come with a warranty?
Yes, all ATK High Performance Engines come with a limited 24-month/unlimited-mile warranty for peace of mind.
Is this engine dyno-tested?
Each HPLH6N unit is strictly tested for oil pressure, compression, and leaks before shipping.
Will this fit in place of my old 6.2 LS3?
While the exterior dimensions are similar to a 6.2 LS engine, you may need to verify your specific wiring harness and ECU compatibility.
Secure Your Build Today
Demand for the ATK High Performance Engines Crate Engines HPLH6N is currently very high due to its popularity in the restomod community. Stock is limited—ensure your project stays on track by securing your engine now through our secure checkout.
Why Electrical Marine Solutions?
Navigating the world of high-performance motors can be daunting. We specialize in bridging the gap between raw hardware and technical support. When you invest in an ATK 5.3 L crate motor through us, you aren’t just buying parts; you’re buying a performance guarantee backed by industry-leading quality control.

Reviews
There are no reviews yet.