Description
Based on the original Signature Series Crankshafts offered by Lunati, this series is designed to withstand the extreme pressures encountered when using a blower (Roots-type supercharger). With all of the original features of the Signature Series, these Signature Blower Crankshafts have .125″ radii on the rods and mains, as well as dual keyways, larger nose bolt threads and enlarged flexplate flange threads. The #1 rod journal is also undrilled in order to provide extra strength on the front of the crankshaft.
Specifications:
| California Proposition 65 | WARNING: This product contains a chemical known to the State of California to cause cancer, birth defects or other reproductive harm. |
| Description_ASC | Profiled and detailed non-twist 4340 forged steel construction. All journal radiuses are ground to .125″; roundness of each journal is .0001″ or less. Pulsed plasma nitride heat treated for increased strength and durability. Micropolished journals. |
| Description_DEF | Engine Crankshaft |
| Description_DES | Signature Series Blower Crank BBC w/ 2 pc Seal w/ 4.250 in Stroke |
| Description_EXT | The Signature Series Blower Crankshaft for BBC features 4340 forged steel construction w/ modifications to withstand supercharger applications. Features 4.250″ stroke. For 2 pc rear seal applications. Minimum 6.385″ Rod. |
| Description_INV | Signature Series Blower Crank BBC |
| Description_MKT | Based on the original Signature Series Crankshafts offered by Lunati, this series is designed to withstand the extreme pressures encountered when using a blower (Roots-type supercharger). With all of the original features of the Signature Series, these Signature Blower Crankshafts have .125″ radii on the rods and mains, as well as dual keyways, larger nose bolt threads and enlarged flexplate flange threads. The #1 rod journal is also undrilled in order to provide extra strength on the front of the crankshaft. |
| height | 10.0 |
| length | 32.0 |
| Minimum Rod Length | 6.385 |
| Notes | 2PC Rear Main |
| Title | Signature Series Blower Crank BBC w/ 2 pc Seal w/ 4.250 in Stroke |
| weight | 88.0 |
| width | 10.0 |
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