Driving Innovation In Diesel Performance

Predator Long Block. Built for Cummins.

Predator 6.4 Cummins long block built for extreme power: billet rotating assembly, fire-ring sealing, upgraded head, and billet intake

Price $29,714.99
PREDATOR Long Block

PREDATOR Long Block

  • Sleeved 4.125" bore wet block foundation
  • FSR billet pistons + X-Beam rod set
  • Fire ring cut head/block + ARP 9/16 studs
  • 275 CFM Stage 3 head + billet intake setup
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KNOWLEDGE HUB

Everything you need to know about D&J Cummins predator long block.

The Predator is a class-limited, high-output long block engineered around a 4.125" sleeved wet block and fire-ring cut head/block sealing, then finished with a 275 CFM Stage 3 cylinder head (5-axis porting, super alloy valves, thread-in soft plugs) and billet intake hardware for airflow and durability under boost.

  • 4.125" Sleeved Wet Block Foundation Built on a sleeved wet block for strength and bore stability in extreme builds.
  • Billet Rotating Assembly X-BEAM rods, FSR billet pistons, Total Seal rings, and tool steel pins for brutal durability.
  • Fire-Ring Sealing + ARP Foundation Fire-ring cut head/block with ARP 9/16 head + main studs and an HD girdle.
  • 275 CFM Stage 3 Head + Billet Intake Stage 3 head with 5-axis porting, super alloy valves, and a billet replacement-style intake.
  • Built for Class-Limited Power Designed to provide bore strength for applications up to 1800 hp while maintaining factory deck height.

FAQs

What is the Predator long block?
A fully assembled Predator 6.4 Cummins long block built from the oil pan to the D&J billet LED valve cover for extreme performance use.
What years does the Predator long block cover?
The product lists variants for 2003–2012 and 2013–2018 applications.
What block foundation is used?
The build list specifies a 4.125" sleeved wet block foundation.
What cylinder head comes with the Predator?
It includes a 275 CFM Stage 3 performance cylinder head with 5-axis CNC porting, super alloy valves, and thread-in soft plugs.
Is there a core charge, and can I avoid it?
Yes, there is a $3,000 core charge, and cores can be sent in beforehand to eliminate it.
Does the Predator ship pre-lubed?
Yes, the page states performance long blocks ship pre-lubed with break-in oil and filter included.
What’s the horsepower capability?
The Predator is described as providing bore strength for class-restricted applications up to 1800 hp.
Can I add upgrades like dual CP3 or a Stage 4 runner intake?
Yes, options shown include dual CP3 housing, and optional upgrades list a Stage 4 billet runner intake upgrade.