2017-2025 GM Duramax 6.6L L5P


SKU:66D-L5P-1725BTB

Regular price $11,699.00 CAD
Regular price Sale price $11,699.00 CAD
Shipping calculated at checkout.
Engine Series: Back To Basics (BTB)
  • Bored & oversize diamond-honed cylinders & resurfaced block decks
  • Remanufactured heads with new guides and 3 angle seat cuts
  • Precision-tested valves & springs
  • New exhaust valves
  • Assembled as a bare long block
  •  Square keyed crankshaft & camshaft
  • Block finished in high gloss black engine enamel
  • Crankshaft, camshaft, pistons, rods, valves, & springs installed

Additional add-ons available upon request:

              •  HD valve springs
              •  Upgraded head studs
              •  Upgraded camshaft
              •  Upgraded pushrods
              •  Ceramic coated & delipped pistons

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Features of this build

Engine Assembly

Blueprinting

Our process includes measuring and blueprinting all tolerances. The intent is to correct all of the small and large discrepancies within the entire scope of the engine assembly.

warranty

Built to last

When you build great engines, you can back them with great warranty. Click below to view our warranty for both commercial and non-commercial builds.

Built with the best components