ATK High Performance Engines

ATK High Performance Engines ATK is one the largest Performance Engine shops in the country specializing in American Muscle!
866-721-2315

We specialize in American Muscle Street-Strip-Racing Engines. We have many proven combinatoins as well as having the knowledge and expertise to help you build your dream mill.

Our new Cathedral Port headed 408CI LS Stroker engine that produces 620+HP /550+TQ. This engine utilizes our new as cast...
03/17/2026

Our new Cathedral Port headed 408CI LS Stroker engine that produces 620+HP /550+TQ. This engine utilizes our new as cast 250cc LS Cathedral Port heads available separately.

In stock and ready to ship! Part Number LS04 starting at $8999 for the long block 🔥

We are getting rid of some LS parts we have around. Everything is new, tax and shipping is extra. LMK if interested via ...
01/06/2026

We are getting rid of some LS parts we have around. Everything is new, tax and shipping is extra. LMK if interested via DM.

Our Dart LS427CI Longblock built for   never gets old. 630+HP/580+TQ before adding the power adder 😏In stock and ready t...
12/24/2025

Our Dart LS427CI Longblock built for never gets old. 630+HP/580+TQ before adding the power adder 😏

In stock and ready to ship ☠️ This engine consists of:

Block and Billet Crank
H Tuff Connecting Rods
Ultra Series Pistons
custom ATK Boost Camshaft
Link Bar Lifters
CNC ported LS3 270cc Heads

Hoping this will help some that are looking for a new career. ATK High Performance is NOW HIRING a few builders and the ...
12/22/2025

Hoping this will help some that are looking for a new career. ATK High Performance is NOW HIRING a few builders and the Reman company a QA Expert. Feel free to DM with any questions.

*Experienced High Performance Engine Builders*

Located, in DFW, TX (Grand Prairie) ATK High Performance is seeking a couple skilled High-Performance Engine Builders specializing in classic and modern American Muscle. ATK High Performance is one of the largest Performance Engine companies in the US.
Key Responsibilities
Engine Blueprinting & Assembly: Perform end-to-end assembly of high-performance engines to finite tolerances for maximum power and reliability.
Specialized Machining: Cylinder head porting, block clearance/grinding experience a plus, rod honing, etc. We do not do much machining here as we have plants that do this for us to our specs, but knowledge of engine/head machining is a big plus.
Component Analysis: Tear down engines to diagnose wear patterns and root causes of failure, documenting every step in detailed build sheets.
Precision Measurement: Use micrometers, dial bore gauges, and calipers to verify clearances.
Performance Tuning: Operate engine dynamometers (dynos) and use EFI tuning software to validate performance and optimize output. Not necessary, but a plus.
Required Skills & Qualifications
Experience: Must have experience in American Muscle engine building, this is not an entry level position. We are looking for someone who can jump right in after a brief familiarization period with the shop manager.
Tool Proficiency: Expert use of precision measuring equipment and hand tools.
Certifications: ASE certifications (A1, A8, L1) are highly preferred. Specialized training from institutions like SAM Tech is a major plus, but none of this is required.
Physical Requirements: Ability to lift up to 50 lbs and stand for long periods in a hands-on shop environment.
Soft Skills
Extreme Attention to Detail: Commitment to "zero-defect" assembly and meticulous record-keeping.
Problem-Solving: Ability to troubleshoot complex mechanical issues and propose innovative design tweaks.
Passion for Excellence: A deep appreciation for American Muscle heritage and a drive to exceed customer expectations.

*Automotive Remanufacturing QA Expert for ATK Remanufacturing*

This person would act as a quality liaison between Parts Suppliers, LKQ Remanufacturing Plants, ATK and its customers. The ideal candidate must have hands-on experience in the remanufacturing of one or several of the following automotive components:
Engines, Transmissions, Differentials, Hybrid cells.
This SQA Engineer will support our plants in consistently meeting quality goals with a strong focus on continuous improvement, waste/ scrap reduction, and the implementation of best practices to lower failure rates (PBI) and warranty costs.
Preferred background includes knowledge of and contacts with:
Automotive industrial equipment manufacturers (brands like Sunnen, Goff, Serdi, etc),
CNC and IoT machining centers (Carmec, Haas, Rottler, RMC, etc)
Auto parts suppliers (like Durabond, Dorman, Federal Mogul, Mahle, EPC, Melling, etc)
ISO-9001/ IATF 16949 registrars
Key responsibilities include:
· Conducting process, system, and product audits at our remanufacturing plants.
· Supporting supplier development, including containment, corrective, and preventive actions
· Assisting plants in evaluating and monitoring auto parts suppliers
ATK Offers:
Medical, dental, vision and life insurance, 401K, PTO, Flex-Cafeteria plans and best of all…Employee discounts on a vast selection of automotive brands!
Send Resumes to: [email protected]
WWW.ATKHP.COM
WWW.ATKSALES.COM

Dart 388CI and 427CI short blocks rated from 1500 to 1800HP are in stock and ready to ship just in time for the holidays...
12/13/2025

Dart 388CI and 427CI short blocks rated from 1500 to 1800HP are in stock and ready to ship just in time for the holidays! No coal this year 🤨

Nice little   putting out 530+HP/500+TQ with all the chop!
11/25/2025

Nice little putting out 530+HP/500+TQ with all the chop!

11/12/2025

rocking an ATK boost ready LS 408ci in this boosted beauty 😍 🤘


11/11/2025
Testing our CNC Ported 260cc LS3 heads on a 408CI build.....damn impressive package producing 641HP /569TQ 🔥 🤘Longblock ...
10/28/2025

Testing our CNC Ported 260cc LS3 heads on a 408CI build.....damn impressive package producing 641HP /569TQ 🔥 🤘

Longblock start at $8999

Heads are $2298 a set



10/23/2025

A good friend and customer car getting dialed in. No numbers will be posted, but keep an eye out for this Nasty grudge car. This has one of our custom built Dart LS 427CI setups.

SHP Pro Blocks
Billet Crank and Ultra Rods
custom forged pistons
F710 Heads and Intake
link bar lifters
custom camshaft
Billet oil pump

And a whole lot of custom work 🤌


Today's project, Retrofit LS 6.0L hitting the dyno. This engine is outfitted with a  EFI system so no matter your drivin...
10/22/2025

Today's project, Retrofit LS 6.0L hitting the dyno. This engine is outfitted with a EFI system so no matter your driving style, she'll be running at her finest 👌

Address

1102 W Carrier Pkwy
Grand Prairie, TX
75050

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

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