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| Quantity | 6 | ||||||
| Crankshaft | 51.999 / 51.981 | ||||||
| Housing | 55.024 / 55.042 | ||||||
| Max Wall | 1.506 | ||||||
| Max Length | 19.200 |

| Sizes | STD, .025, .25 |
| Oil Clearance | Standard |
| Half Type | Identical halves |
| Material | Tri-metal Hardened steel backs |
| Min. Std Shaft Size | 2.0465in / 51.981mm |
| Max. Std Shaft Size | 2.0472in / 52mm |
| Min. Std Tunnel Size | 2.1663in / 55.024mm |
| Max. Std Tunnel Size | 2.167in / 55.042mm |
| Max Wall at Crown | 0.0593in / 1.506mm |
| Max Overall Length | 0.7598in / 19.3mm |
| Weight | 0.253 |
| Notes | 0 |

| ENGINE BEARINGS | ||
![]() |
CON ROD BEARING SET |
|
| Part# | ||
| 6B8100H |
6B8100HX |
|
| 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 |
2.0465in / 51.981mm |
|
| Max Std Shaft Size |
2.0472in / 52mm |
|
| Min Std Tunnel Size |
2.1663in / 55.024mm |
|
| Max Std Tunnel Size |
2.167in / 55.042mm |
|
| Max Wall at Crown |
0.0593in / 1.506mm |
0.0588in / 1.493mm |
| Max Overall Length |
0.7598in / 19.3mm |
|
| Notes | ||
|
Diagram |
![]() |
|

| Sizes | STD, .025, .25 |
| Oil Clearance | Standard |
| Half Type | Upper & Lower |
| Material | Tri-Metal |
| Min. Std Shaft Size | 2.4403in / 61.984mm |
| Max. Std Shaft Size | 2.441in / 62.001mm |
| Min. Std Tunnel Size | 2.5992in / 66.02mm |
| Max. Std Tunnel Size | 2.5998in / 66.035mm |
| Max Wall at Crown | 0.0789in / 2.004mm |
| Max Overall Length | 0.7874in / 20mm (8103H/HX) 0.9055in / 23mm (8104H/HX) |
| Weight | 0.44 |
| Notes | 0 |





|
Part number starting with 330 |
|
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Athena advantages |
|
|
Reinforced material |
Asbestos free composite raw material OE approved |
|
Stainless steel ring (AISI304) |
Separate stainless steel rings assure maximum sealing around cylinder bore also on NOS and/or turbo charged engine where boost is over 2 bars. No head and block machining required |
|
Silicon beading |
Silicon-based beading is applied on critical areas to improve sealing around all cooling water and oil passages |

|
Product detailed specification |
|
|
Bore size |
86.50mm |
|
Stroke |
94.00mm |
|
JE Pistons compression ratio (CR) |
9.5:1 |
|
OEM compression ratio (CR) |
8.5:1 |
|
Dome volume (CC) |
-14.00cm3 |
|
Compression height (CH) |
30.00mm |
|
Pin diameter |
22mm |
|
Features |
Accepts Turbo and Nitrous; asymmetrical FSR serie; Tuff coated piston skirt |
|
Fits for |
Toyota Supra - 3.0 Stroker (2JZGTE) |