
| ENGINE BEARINGS | ||
![]() |
MAIN BEARING SET |
|
| Part# | ||
| 5M1633H |
5M1633HX |
|
| Sizes | STD, .025, .25, .50 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Upper & Lower | |
| Material | Tri-Metal | |
| Min Std Shaft Size |
2.0847in / 52.951mm |
|
| Max Std Shaft Size |
2.0852in / 52.964mm |
|
| Min Std Tunnel Size |
2.2305in / 56.654mm |
|
| Max Std Tunnel Size |
2.231in / 56.667mm |
|
| Max Wall at Crown |
0.0720in / 1.830mm (1633H) |
0.0715in / 1.818mm (1633HX) 0.0717in / 1.823mm (1635HX - Flange) |
| Max Overall Length |
0.787in / 20.00mm (1633H/HX) 1.100in / 27.95mm (1635H/HX - Flange) |
|
| Notes | ||
|
Diagram |
1633H & HX - Positions 1, 2, 4, 5
1635H & HX - Position 3
|
|

|
|||||||
| Quantity | 5 | ||||||
| Crankshaft | 54.981 / 54.955 | ||||||
| Housing | 58.943 / 58.969 | ||||||
| Max Wall | 1.976 | ||||||
| Max Length | 18.999 |

Spring data:
Outer spring outer diameter: 27.50mm
Outer spring inner diameter: 20.00mm
Inner spring outer diameter: 20.00mm
Inner spring inner diameter: 15.20mm
Seat pressure: 88Lbs@34.20mm (seat)
Spring coil bind: 20.70mm
Max lift: 14.00mm
Rate: 12.10Lbs/mm
Set includes:
Dual springs: 24 pcs. SPR-TS1015-GTR
Titanium retainers: 12 pcs. RET-TS5.5-T8 (intake) & 12 pcs. RET-TS5.5-T9F (exhaust)
Seats: 12 pcs. SEAT-TS-GTR2 (intake) & 12 pcs. SEAT-TS-GTR (exhaust)

|
Product detailed specification |
|
|
Bore size |
86.25mm |
|
Stroke |
73.70mm |
|
Wiseco compression ratio (CR) |
8.25:1 |
|
OEM compression ratio (CR) |
8.5:1 |
|
Dome volume (CC) |
14cm3 |
|
Compression height (CH) |
30.00mm |
|
Pin diameter |
21mm |
|
Features |
Accepts Turbo and Nitrous |
|
Fits for |
Nissan Skyline R32-R34 2.6 24V (RB26DETT) |


| ENGINE BEARINGS | ||
![]() |
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 |
![]() |
|



|
Product detailed specification |
|
|
Bore size |
86.50mm |
|
Stroke |
73.70mm |
|
Wiseco compression ratio (CR) |
8.25:1 |
|
OEM compression ratio (CR) |
8.5:1 |
|
Dome volume (CC) |
14cm3 |
|
Compression height (CH) |
30.00mm |
|
Pin diameter |
21mm |
|
Features |
Accepts Turbo and Nitrous |
|
Fits for |
Nissan Skyline R32-R34 2.6 24V (RB26DETT) |


|
|||||||
| Quantity | 4 | ||||||
| Crankshaft | 47.973 / 47.955 | ||||||
| Housing | 51.001 / 51.013 | ||||||
| Max Wall | 1.504 | ||||||
| Max Length | 17.000 |

| ENGINE BEARINGS | ||
![]() |
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 |
![]() |
|