Chevrolet 400 Small Block Engine Bearings

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 ENGINE BEARINGS

CON ROD BEARING SET

MAIN BEARING SET

Part# Part#
8B663H


8B663HX

 
5M1038H

 
5M1038HX

 
Sizes STD, 001, 009, 010, 011, 020 STD STD, 001, 010 STD
Oil Clearance Standard + 0.001" Extra Standard + 0.001" Extra
Half Type Upper & Lower Upper & Lower
Material

Tri-metal Hardened steel backs

Tri-Metal
Min Std Shaft Size

2.099in / 53.315mm

2.6484in / 67.269mm

Max Std Shaft Size

2.1in / 53.34mm

2.6493in / 67.292mm

Min Std Tunnel Size

2.2247in / 56.507mm

2.8406in / 72.151mm

Max Std Tunnel Size

2.2252in / 56.52mm

2.8416in / 72.177mm

Max Wall at Crown

0.0619in / 1.572mm

0.0614in / 1.559mm

0.0953in / 2.421mm

0.0948in / 2.408mm

Max Overall Length

0.8366in / 21.25mm

0.8047in / 20.44mm    (7113H/HX)

1.7181in / 43.64mm    (7115H/HX - Flange)

Notes

Diagram       
(Top View) 

7113H & HX - Positions 1, 2, 3, 4

7115H & HX - Position 5

 CAMSHAFT BEARING SET
Part#

5C3349C

5C3346C *

5C004AS **

5C004BS ***

Material Heavy Duty Aluminum TIn
Sizes STD Notes

*     housing bores constant at 1.999/2.001" (50.775/50.825mm)

**   +0.010" OD, housing bore 2.029/2.031" (51.537/51.587mm)

***   +0.020" OD, housing bore 2.039/2.041" (51.791/51.841mm)


 
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