Part number starting with 338 |
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Athena advantages |
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Optimized radius embossing shape |
The round shape of the embossing increases sealing on cylinder bore, oil and cooling water passages and improves spring back strength |
Advanced stopper technology |
State of the technology enhances sealing pressure around the cylinder. Highest sealing properties in high power engines |
Coating technology |
Designed & engineered by Athena the special coating applied on steel surfaces, improves temperature resistance & reliability of the head gasket |
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Quantity | 4 | ||||||
Crankshaft | 48.019 / 48.001 | ||||||
Housing | 51.587 / 51.600 | ||||||
Max Wall | 1.775 | ||||||
Max Length | 20.470 |
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Quantity | 5 | ||||||
Crankshaft | 54.795 / 54.785 | ||||||
Housing | 58.730 / 58.745 | ||||||
Max Wall | 1.946 | ||||||
Max Length | 18.499 |
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Quantity | 4 | ||||||
Crankshaft | 48.019 / 48.001 | ||||||
Housing | 51.587 / 51.600 | ||||||
Max Wall | 1.775 | ||||||
Max Length | 20.470 |
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Quantity | 4 | ||||||
Crankshaft | 48.019 / 48.001 | ||||||
Housing | 51.587 / 51.600 | ||||||
Max Wall | 1.775 | ||||||
Max Length | 20.470 |
ENGINE BEARINGS | ||
CON ROD BEARING SET |
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Part# | ||
4B7820H |
4B7820HX |
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Sizes | STD, .25, .50 | STD |
Oil Clearance | Standard | + 0.001" Extra |
Half Type | Identical Halves | |
Material |
Tri-metal Hardened steel backs |
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Min Std Shaft Size |
1.8898 in / 48.000 mm |
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Max Std Shaft Size | 1.8905 in / 48.020 mm | |
Min Std Tunnel Size | 2.0310 in / 51.587 mm | |
Max Std Tunnel Size | 2.0315 in / 51.600 mm | |
Max Wall at Crown | 0.0696 in / 1.768 mm | 0.0691 in / 1.755 mm |
Max Overall Length |
0.807 in / 20.50 mm |
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Notes | ||
Diagram |
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ENGINE BEARINGS | ||
MAIN BEARING SET |
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Part# | ||
5M7807H |
5M7807HX |
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Sizes | STD, .25, .50 | STD |
Oil Clearance | Standard | + 0.001" Extra |
Half Type | Identical Halves | |
Material | Tri-Metal | |
Min Std Shaft Size |
2.1569 in / 54.785 mm |
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Max Std Shaft Size | 2.1573 in / 54.795 mm | |
Min Std Tunnel Size | 2.3122 in / 58.731 mm | |
Max Std Tunnel Size | 2.3128 in / 58.744 mm | |
Max Wall at Crown | 0.0765 in / 1.945 mm |
0.0760 in / 1.933 mm |
Max Overall Length | 0.728 in / 18.50 mm | |
Notes | ||
Diagram |
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Part number: 1T7807-STD
Manufacturer: ACL BEARING COMPANY
F1N, F2N, F2R, F3N, F3P, F3R, F7P, F7R, F8M, F8Q engines
ENGINE BEARINGS | ||
CON ROD BEARING SET |
||
Part# | ||
4B7820H |
4B7820HX |
|
Sizes | STD, .25, .50 | STD |
Oil Clearance | Standard | + 0.001" Extra |
Half Type | Identical Halves | |
Material |
Tri-metal Hardened steel backs |
|
Min Std Shaft Size |
1.8898 in / 48.000 mm |
|
Max Std Shaft Size | 1.8905 in / 48.020 mm | |
Min Std Tunnel Size | 2.0310 in / 51.587 mm | |
Max Std Tunnel Size | 2.0315 in / 51.600 mm | |
Max Wall at Crown | 0.0696 in / 1.768 mm | 0.0691 in / 1.755 mm |
Max Overall Length |
0.807 in / 20.50 mm |
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Notes | ||
Diagram |
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