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The Wagler STREETFIGHTER Duramax offers neck-snapping torque, with impeccable street manners, and is the ideal upgrade for light-duty GM trucks and classic hot rods alike. It was put through seventy-eight grueling engine dyno passes and intentionally pushed to the breaking point, just to find out where it is. Taking it to the next level, the Wagler R&D team is currently verifying real-world performance at Wagler’s private test track in Lyons, Indiana. Such extensive testing has given Wagler Competition Products the confidence to back the STREETFIGHTER Duramax with a 12-month/12,000-mile warranty.


Short Block

The Wagler STREETFIGHTER Duramax balanced short block delivers exceptional performance at an affordable price and includes: Wagler Duramax prepped block (LB7 – LMM), front cover, rear cover, upper & lower oil pan, Callies forged Compstar 6.6 Duramax crankshaft, ARP 2000 main studs, Wagler As-forged Duramax Street Rod (set of 8), Wagler de-lipped Mahle piston (set of 8), Wagler stage 1 AF camshaft, new GM crank gear, and a Wagler pinned oil pump. The Wagler STREETFIGHTER Duramax short block will be externally balanced for the OE Duramax harmonic balancer and flexplate.

Short Block with Fluidampr & Flexplate

For those looking for the best in vibration dampening, Wagler offers the STREETFIGHTER Duramax balanced short block with a Fluidampr harmonic balancer, Suncoast billet flexplate, and ARP fasteners.

Long Block

The Wagler STREETFIGHTER Duramax long block includes the above balanced short block along with: Ported GM heads and valve covers, ARP 2000 head studs, Wagler push rods, and Wagler dual valve springs.

Complete Engine

For those looking for a drop-in engine, Wagler offers a complete STREETFIGHTER Duramax with turbocharger kit, fuel system, and billet water pump. The Wagler STREETFIGHTER Duramax is fueled by eight S&S Diesel Motorsport 100% over-stock injectors and a 12mm CP3 pump, with a Precision Turbo 6870 ball bearing turbocharger supplying enough air to produce a conservative 800 horsepower and 1,450 ft-lbs of torque at the crank.


Core Charges (not included in the price)

Duramax LB7 – LML head $300 per head $600 total

Duramax LB7-LML short block $1850

Duramax LB7-LML Engine covers $500

Duramax Lb7 – LML block only core $950

Injectors Core Charge –  $150 x 8 = $1200

Engine Skid Core Charge – $350

All cores must be returned within 30 days for full refund credit.


The Wagler STREETFIGHTER Duramax is backed by a 12-month/12,000-mile warranty, see details in the Warranty section.



Additional information

Weight 500 lbs
Dimensions 48 × 48 × 36 in


Wagler Competition Products
9612N 675E
Odon, Indiana 47562
Phone: (812) 636-0391

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