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
| Engine: | Stroke: | Part Numbers: | Specs: |
| B16A | 85mm (3.335″) | 1633341772 | Discontinued October 2023 |
| B18A/B NON-VTEC | 87mm (3.433″) | 1835041772 | • 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 |
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.
| Select: | B16A Forged 85mm (1633341772) *Discontinued*, B18A/B NON-VTEC Forged 87mm (1835041772), F20C/F22C Billet 96.5mm (3F2037995893), K20/K24 Billet 93mm (3K2036615470) |
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Orders that contain more than one item are assigned processing times according to each item.
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Returns
We do not manage the stock in our warehouse or factory. The levels of stock can change at any time. Please be aware that it's possible for your order to be out of stock after you have placed the order.
The policy is 30 days. If it's been longer than 30 days since you bought the item We're sorry to say that we can't offer you a full refund or exchange.
The item cannot be used, and it must be in its original condition. It must also still be in the original package.
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