ACL Race Main Bearings Chevrolet 400 Small Block (STD)

ACL bearings are used for tuning and engine upgrades where you want better quality with higher bearing capacity than normal standard bearings.
Improvements of material, dynamic thickness, heat conduction, oil grooves and oil distribution are some of the points that make ACL one of the leading bearing manufacturers.
Bearing data
Part number: 
5M1038H
Bearing size: 
STD
Bearing half type: 
Upper & lower
Bearing material: 
F780
Technical data (mm)
Max overall length: 
20.44
Max shaft size: 
 67.292
Max tunnel size: 
72.174
Max vertical oil clearance: 
0.079
Max wall at crown: 
2.421
Min shaft size: 
67.269
Min tunnel size: 
72.151
Min vertical oil clearance: 
0.017
Technical data (in)
Max overall length: 
0.804722807
Max shaft size: 
2.649286064
Max tunnel size: 
2.841490406
Max vertical oil clearance: 
0.00311023
Max wall at crown: 
0.095314771
Min shaft size: 
2.648380554
Min tunnel size: 
2.840584896
Min vertical oil clearance: 
0.00066929
Engine code
400 Small Block
Application
Chevrolet 400ci (6.6L) Small Block V8 OHV 2v
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