Stock Appearing, Higher Flow, Improved Reliability
Fleece releases the most comprehensive grid heater nut solution on the market—and it fits every ’07.5-’24 6.7L Cummins ever built.
Month: May 2026
Stealing The Show (And Everyone Else’s Money) At The Dyno Day
A Duramax sweeps the dyno day, diesel drag racing in Tulsa, and the latest technological breakthrough for the 7.3L Power Stroke.
The Science Behind Flexplates With Goerend Transmission
The highly engineered drivetrain component that must strike the perfect balance between strength and flexibility—while also absorbing rotational torque and axial thrust.
Greg A.’s 1,500hp Seventy 2 Fast Engine
1,500 hp for 72 Fast, 3,000+ hp for UCC, why no-prep racing is so popular, and the best 6.7L Power Stroke engine package for turning out four-digit horsepower.
O-Line’s Triple-Turbo’d, Sigma Pumped, Billet Block & Head Cummins Is Ready To Dyno
A Super Stock Cummins is ready for the engine dyno, a 3-second Duramax dragster hits the hub dyno, the latest 6.7L Ford intake, and the largest L5P injectors to date.
Better Than Factory: Freedom’s Street Series Cummins Long Blocks
With Freedom Racing Engine's long blocks, you get an upgraded, more reliable engine solution—but also one that gets you back on the road ASAP.
Deep 6’s! Yet Another L5P Duramax/Allison Record
It’s another record for the L5P Duramax platform and two cutting-edge 6.7L Power Strokes are headed to June’s $100,000 drag race in Indy.