Sale

Engines and Components› Engines, Blocks and Components

DFC Engines

6.6 CHEVY GM SPEED OF AIR SHORT BLOCK (STD AUTO) 06-07 LBZ Core Charge Applies plus Core Container Charge (3000) of 500 Crate charge

$11,187.04 $9,262.77 Save $1,924.27

SKU: D011 660607LBZSOASB

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Professional / shop required

Description

This DFC Diesel Street Series Long Block is a remanufactured engine for 2006-2007 GM/Chevrolet 2500HD/3500HD with a 6.6L Duramax LBZ engine. It features premium components like Total Seal gapless piston rings, ARP or OptiTorque head studs, and a precision-machined oil pump gear. It comes with a 5-year/160,000 km (or 100,000-mile) warranty.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandDFC Engines
Part NumberD011 660607LBZSOASB

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy