Duramax 6.6L Built Short Block Engine LLY
( 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
Bore block back to crankshaft center line
Hone Block to Ra 13 finish
Check main and Rod clearances
Balance rotational Assembly
Replace Main bearings
Replace Rod bearings
Replace Cam Bearings
Replace Rod bolts
Inspect Condition Rods
Inspect and Polish
Install Mahle pistons
Mahle pistons, rings, Pin retainers weight matched Prior to crank balancing