Eagle Crankshaft for Honda / Acura
Eagle 4340 steel crankshafts for Honda and Acura engines. Available for B16A, B18A/B NON-VTEC, F20C, F22C, K20 and K24. Some cranks are forged, some are billet. Please review all specs carefully, do all your research and consult your engine builder if necessary before purchase.
Important Notes:
Crankshaft must be balanced to match your specific rods and pistons.
Double check all specs and confirm before purchase
Purchase Includes:
(1) Crankshaft
What's the difference between billet and forged?
Eagle billet 4340 steel crankshafts feature .125" fillet radiuses for superior strength so chamfered / narrowed bearings required, nitrided surface, & micropolished to < 2 ra.
Eagle forged 4340 steel cranks feature a non-twist forging, .125" fillet radiuses for superior strength so chamfered / narrowed bearings required, nitrided surface, & micropolished to < 2 ra. Intended for the most demanding applications.
Important Notes:
Crankshaft must be balanced to match your specific rods and pistons.
Double check all specs and confirm before purchase
Purchase Includes:
(1) Crankshaft
| Engine: | Stroke: | Part Numbers: | Specs: |
| B16A | 85mm (3.335") | 1633341772 |
Discontinued OCT 2023 |
| B18A/B NON-VTEC | 87mm (3.433") | 1835041772 |
Discontinued MAR 2024 • Material: Forged 4340 Steel • Intended Balance: Internal • Stroke: 3.504" • Rod Journal: 1.771" • Rod Journal Width: 0.945" • Main Journals: 2.164" • Minimum Rod Length: 5.29" • Typical Weight: 30 Pounds |
| F20C/F22C | 96.5mm (3.799") | 3F2037995893 | • Material: Billet 4340 Steel • Intended Balance: Internal • Stroke: 3.799" • Rod Journal: 1.889" • Rod Journal Width: 0.956" • Main Journals: 2.165" • Minimum Rod Length: 5.893" • Typical Weight: 35 Pounds • Required use with 1.067" pin height pistons |
| K20/K24 | 93mm (3.661") | 3K2036615470 | • Material: Billet 4340 Steel • Intended Balance: Internal • Stroke: 3.661" • Rod Journal: 1.889" • Rod Journal Width: 0.794" • Main Journals: 2.165" • Minimum Rod Length: 5.47" • Typical Weight: 35 Pounds • Required use with 1.043" pin height pistons |
| B16A | - | 1630311772 |
Not Available |
| B18A/B NON-VTEC | 95mm (3.740") | 1837401772 |
Discontinued July 2021 |
| B18C VTEC | 87mm (3.433") | 1834331772 |
Discontinued May 2021 |
| B18C VTEC | - | 1835431772 |
Not Available |
| B18C VTEC | - | 1633341772LW | Not Available |
Eagle billet 4340 steel crankshafts feature .125" fillet radiuses for superior strength so chamfered / narrowed bearings required, nitrided surface, & micropolished to < 2 ra.
Eagle forged 4340 steel cranks feature a non-twist forging, .125" fillet radiuses for superior strength so chamfered / narrowed bearings required, nitrided surface, & micropolished to < 2 ra. Intended for the most demanding applications.
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