
| Position | |||||||
|---|---|---|---|---|---|---|---|
| Pairs & PN |
|
||||||
| Quantity | 1 | ||||||
| Crankshaft | 66.965 / 66.972 | ||||||
| Housing | 0.000 / 0.000 | ||||||
| Max Wall | 2.510 | ||||||
| Max Length | 18.352 |

| ENGINE BEARINGS | ||
![]() |
CON ROD BEARING SET |
|
| Part# | ||
| 4B1912H |
4B1912HX |
|
| Sizes | STD, 025, .25 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Identical Halves | |
| Material |
Tri-metal Hardened steel backs |
|
| Min Std Shaft Size |
1.889in / 47.98mm |
|
| Max Std Shaft Size |
1.8898in / 48mm |
|
| Min Std Tunnel Size |
2.008in / 51.004mm |
|
| Max Std Tunnel Size |
2.0088in / 51.024mm |
|
| Max Wall at Crown |
0.0589in / 1.496mm |
0.0584in / 1.483mm |
| Max Overall Length |
0.7638in / 19.4mm |
|
| Notes | ||
|
Diagram |
![]() |
|

![]() |
CON ROD BEARING SET |
|
| Part# | ||
| 4B1630H |
4B1630HX |
|
| Sizes | STD, .025, .25, .50 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Identical Halves | |
| Material |
Tri-metal Hardened steel backs |
|
| Min Std Shaft Size |
1.7701in / 44.961mm |
|
| Max Std Shaft Size |
1.7701in / 44.961mm |
|
| Min Std Tunnel Size |
1.8898in / 48mm |
|
| Max Std Tunnel Size |
1.8903in / 48.013mm |
|
| Max Wall at Crown |
0.0593in / 1.505mm |
0.0587in / 1.492mm |
| Max Overall Length |
0.7323in / 18.6mm |
|
| Notes | ||
|
Diagram |
![]() |
|

| Sizes | STD, .025, .25 |
| Oil Clearance | |
| Half Type | |
| Material | |
| Min. Std Shaft Size | 42,971 |
| Max. Std Shaft Size | 42,987 |
| Min. Std Tunnel Size | 46,000 |
| Max. Std Tunnel Size | 46,013 |
| Max Wall at Crown | 1.495 |
| Max Overall Length | 16.63 |
| Weight | 0.12 |
| Notes |

| Position | Connecting rod: 1, 2, 3, 4, 5, 6 |
||||||
|---|---|---|---|---|---|---|---|
| Pairs & Part Numbers |
|
||||||
| Quantity | 6 | ||||||
| Crankshaft Diameter | 48.992 / 48.974mm | ||||||
| Housing Diameter | 53.000 / 53.015mm | ||||||
| Max Wall Thickness | 1.994mm | ||||||
| Max Length | 16.002mm |

Uper | Lower | Quantity | Position | Crankshaft | Housing | Max Length | Max Wall |
|---|---|---|---|---|---|---|---|
SM ![]() |
SM ![]() |
4 | 1,2,4,5 | 0.000 / 0.000 | 0.000 / 70.000 | 22.400 | 2.494 |
SM ![]() |
SM ![]() |
1 | 3 | 0.000 / 0.000 | 0.000 / 70.000 | 27.051 | 2.494 |