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2001-2004 LB7 Duramax Performance Long block 2001-2004 LB7 Duramax Performance Long block

Performance Upgrades:
Cylinder Heads: HD Valve Springs , HD Pushrods
Block: Billit Crankshaft , H Series Bearings , Stage 2,3 and 4 Colt Camshaft, Cali Camshaft, Carrillo Rods , Coated Pistons, Flycut pistons
( CNC MACHINED AND BLUE PRINT BORED, DIGITIZED, DIAMOND HONED, SURFACED, LINE BORED, Piston weight matching , Rod weight matching
All weights and Measures Recorded. Piston diameter measured to the nearest .0001" matched to cylinder bores
Piston ring gaps measured and recorded
Main and rod oil clearances measured to the nearest .0001"
Cylinder block is surfaced to surface finish Ra 20 or finer, which exceeds the factory specification in both flatness and smoothness for the block to head sealing surface.

The Cylinder bores are blue print bored a true 90deg from the crankshaft center line, prior to being diamond honed to within .0002" for precise piston to cylinder bore clearances.
Main bore ( line bore) for the crank shaft is linked bored to precisely align the crankshaft in the engine block . Also includes on full rotational assembly



Cylinder Bock
Bore block back to crankshaft center line
Hone block to Ra 12 finish

Reman Heads
Replace Injector Cups and Oring
Resurface Heads
pressure test
Cut new valve seats
Replace Valves
Install new valve seals
Test spring tension

Crank Shaft
Check crankshaft main and rod clearances
Magnuflux and polish

Balance Rotational Assembly

Replace Main bearings
Replace rods bearings
Replace Cam bearings
Replace Rod bolts with OE

Connecting Rods
Inspect and condition
Cam Shaft
Inspect and polish

Piston
Install Mahle pistons
Mahle pistons, rings, Pin retainers weight matched prior to crank balancing

Install New Fel Pro Head gaskets
Install ARP studs
Install new bed seals
Install rear main seals

Rear Cover Gasket
Rear Main seal
Rear cover installed
New Harmonic Balancer
New Flywheel

Our Price: $6,695.00