PRECISION YOU
CAN’T MEASURE
WITH A CALIPER.
Engineered to the Nanometer
The HHP Black Series is built on one principle: what you can’t see is what destroys an engine over 500,000 miles. We built the technology to see it — and the process to fix it.
- ✔ Runs harder
- ✔ Lasts longer
- ✔ Handles heat better
- ✔ Cuts down wear
- ✔ Tested the right way
- ✔ Built for real work
- ✔ Better fit and finish
- ✔ Better break-in results
- ✔ Smoother performance
- ✔ More dependable parts
- ✔ Advanced coatings
- ✔ Built for big miles
0
Years Building Better Coatings
0
Miles Proven on the Road
0
Years Testing Metals and Materials
0
6 Figure Testing Investment
THE PROBLEM
DIESEL IS FORGIVING. OVER 500,000 MILES, FRACTIONS OF A PERCENT AREN’T.
A piston moves 20 to 30 times per second. Rod bolts experience thousands of pounds of reciprocating force. The difference between a good overhaul and a costly one lives at the nanometer level — invisible to a bore mic, unfelt by a finger, but real enough to cost you thousands in consumed oil and fuel over the life of the overhaul.
“A 1% improvement in fuel efficiency over 500,000 miles translates to thousands of dollars. That’s the case for doing this right.”
— HHP Engineering Team
OUR ANSWER
MEASUREMENT TECHNOLOGY BORROWED FROM AEROSPACE.
HHP operates a Taylor Hobson CMM — the same precision measurement technology used by General Electric for turbine blades. In diesel engine aftermarket, this is virtually unheard of. We use it to measure cylindricity, crosshatch pattern, surface roughness, and ring tension at the micron and nanometer scale — not to meet minimum spec, but to understand where OEM tolerances actually are, and how far we can improve them.
Parts that look identical on a shop floor can be fundamentally different under this level of analysis. The Black Series only reaches production when we can prove it on this machine.
BLACK SERIES TECHNOLOGY
EVERY COMPONENT. ENGINEERED FROM FIRST PRINCIPLES.
WHY BREAK-IN MATTERS MORE THAN YOU THINK
THE FIRST HOURS OF AN OVERHAUL SET THE CEILING FOR THE NEXT 500,000 MILES.
Break-in isn’t a formality — it’s the most critical moment in an engine’s life. If ring-to-liner seating doesn’t happen properly in the first hours, the subsequent half-million miles will underperform. At idle, oil pump flow is halved, chamber pressure is minimal, and rings aren’t pushed against the wall with enough force to seat. We’ve run the experiment: liners broken in at idle versus under load look measurably different under magnification.
The Black Series is engineered to make break-in more forgiving — with tighter ring tension specs, properly plateau-honed liners, and low-friction coatings that reduce break-in-induced wear. But you still have to put it to work. Hook it up to a load within the first five minutes. Go up a hill. Don’t idle it.
THE COMPOUND EFFECT
HIGH PERFORMANCE ISN’T ALWAYS MORE POWER. IT’S SLOWER DECAY.
Every engine loses power over time. The question is how fast. Standard parts may see 10–20% horsepower decay over 10 years of operation. Black Series components — with low-friction skirt coatings, properly seated rings, and HP bearings that protect during cold-start — experience a measurably slower decay rate.
You won’t feel the difference day one. Over the life of an overhaul, you’ll see it in fuel receipts, oil consumption logs, and the condition of your components when you finally open it back up.
“We say high performance, but a lot of this is actually helping with the endurance of the engine. The performance comes from a part that lasts longer.”
— HHP Engineering Team
THE DEVELOPMENT RECORD
TWELVE YEARS OF TESTING. STILL NOT DONE.
The Black Series isn’t a product launch. It’s a long-term engineering program built on continuous testing and improvement.
2014
Piston coating program begins
First ceramic coating experiments. Blue ceramic coating works well inside the engine but absorbs oils from packaging and fingerprints. Development restarts with a polymer-matrix approach.
2014 – 2020
Hundreds of dyno cycles. Multiple coating formulas.
Gold polymer-matrix coating developed and refined. Cerakote evaluated. Flame-sprayed zirconia ceramic from a rocket engine contractor applied and tested. Every iteration documented. Every failure analyzed under the microscope.
2020 – 2022
Nitriding introduced. Adhesion challenges solved.
Product improvements are not easy or inexpensive. While increasing piston bowel durability beyond any competitors pistons in the market place we introduce adhesion challenges that we had to resolve with a industry first robotic laser. This is the difference between proven quality.
2023 – 2024
Automated application and DLC wrist pin development
Automated laser cleaning and coating application introduced for consistency — hand application is documented to produce uneven distribution and inadequate preparation. DLC wrist pin program begins. Mnemonic and Chrome-3 valve materials under evaluation.
TODAY
620,000+ Miles in Real-World Use, More Advanced Dyno Testing on the Way
Field operators now reporting trucks exceeding 1 million kilometers with Black Series components. A second dynamometer — AC-based with near-instantaneous load response and energy recovery — is being commissioned for more precise road simulation testing. Development does not stop.
