GM 6.6 LB7 Duramax Engine.

We get serious power with GM 6.6 LB7 diesel truck engines. From workhorse to Sunday driving, it’s a beast that gets the job done.

We have such a beast right here. This is a 2003 GM 6.6  LB7 Duramax 402 32V V8 diesel engine that fits the Kodiak, Silverado, Sierra and Topkick trucks.

The Rebuild Plan:  Teardown, Inspect for damage or cracks, Hot tank and clean.
Bore and Hone the engine block, Grind the crank and cam.
Valve Job on the cylinder head- Grind valves, Cut valve seats, Resurface head, Clean, Paint and assemble.
Engine Rebuild Kit with new Pistons, rings, engine bearings, gasket set, thrust washes, freeze plugs, oil pump, and timing set.

We tore it apart, inspected the block and heads for any damaged parts or cracks, then hot tanked everything.

The cylinders were bore and honed to the proper finish, another hot tank, then a coat of paint. Meanwhile we work the cylinder heads, grind valves, cut seats, resurface, clean and assemble.

Short block rebuild in progress.  No pics of the bore and hone, but you can see the nice finish on the block and the pistons have a good fit.   Engine rebuild kit with new pistons, rings, full gaskets, bearings, thrust washers, oil pump and timing kit.

Time to add those oil injector tubes with perfect alignment and crank clearance. They’re a pain in the ass!

Putting on the finishing touches to the GM 6.6 LB7 short block.

It’s ready for customer pick up.  Client wants to complete final assembly.

Remanufactured GM GMC 6.6 LB7 Duramax Short block and Cylinder heads.

What we offer..

Auto parts for your GM GMC 6.6 LB7 Duramax engine, call us 818 767-6603.

Engine rebuilding machine shop services for your GM 6.6 Duramax- bore and hone, decking, valve job, block work, cylinder head repairs, crank grinding, call us 818 767-6603

Los Angeles Engine builders with solutions.

Use the Contact page if you want to email us, give us details.