Current Lead Times: In Stock Engines Ship Same or Next Day - Out of Stock: 1-3 Weeks on Most Long Block Engines; 3-5 Days on Heads – *call us for more exact lead times for your specific build 
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Got Questions about our Products? Call us! Our Experts are here to help. 901-553-9847

Cummins

Unlike many competitors, we don’t just recondition old parts—we upgrade critical components, integrate performance enhancements, and ensure every head is built to handle the demands of modern diesel engines.

Daily Driver

Built to surpass OEM by fixing factory issues

Workhorse

Upgraded to Daily Driver, then o-ringed

Workhorse Plus

Upgraded to Workhorse, plus heavy duty valve springs

High Quality, High Performance

Why choose our Cummins Cylinder Heads?

Premium Materials and Construction
High-Performance Upgrades

Purpose-Built for Every Driver

Complete Transparency in Our Process

Our Services

Need Special Services for your Diesel Cylinder head?
Let us Service you with a la carte options.

Inspection

Resurfacing

Porting

O Ringing

Customer Reviews

What our customers have to say about our cylinder heads.

Great customer service & great products! Will order from again!

Black Diamond Diesel Performance

Exceptional customer service and support. These guys really know their stuff and provide a great product! Thank you!!

– Austin

They knocked it out of the park with the on time delivery, easy to deal with and last but not least, an excellent engine that’s running great.

– Phil Rawlings