Lunati Signature BBC Cranks - Extra blower Keyway IN STOCK - $1,898

4.125, 4.250, 4.500 stroke - 2500+ HP

Mar 29th 2026

6122

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$1,898

Listing Number: 184682165

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Mooresville, NC, United States

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USA Performance Parts (Business Seller) RJ Storefront

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Item description

Lunati Signature BBC Crankshafts - 2500+ HP. Premium 4340 Forged Steel, contoured counterweights, gun drilled main & rod journals, Nitride heat treated. Extra Blower keyway. 4.125 & 4.500 Strokes Available Now. In stock to ship.

4.125 Stroke, Great for Blower & Turbo engines
4.250 Stroke for 540 Blown & Turbo engines
4.500 Stroke for Blown or Naturally Aspirated Big HP engines
Double 1/4in keyways for Blown Applications
Pulsed Plama Nitride heat treated for increased strength & durability
Contoured Wing Counterweight Profile for reduced windage
Large .125 journal radius
Gun drilled mains
All rod journals have lightening holes to reduce inertia weight
IN STOCK NOW to SHIP

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Money Order, Credit Card, Cash

Full Item Info

Condition:

New

Seller Information

Business

USA Performance Parts RJ Storefront

113 Winborne Dr, Mooresville, NC 28115

Phone

Show phone number

Website

www.usaperform.com

Member Since

October 2008

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RJ Seller Store

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