Longevity of Lightweight crank ?

[glnrcg]

I found a super deal on a New Crower 43 pound crank and was wondering about the longevity of use compared to the 48 pound crank I had before. Going in a 13 degree 800 + HP motor. 3.875 stroke.

[giffordracing]

most cup cranks are 38 to 44 pounds..800+ hp 9000rpm and good for 1000 miles..maybee more...JMO

and you are talking Crower...Good Piece

[hogracer3d]

Bruce Crower himself, suggested to me on the phone, to rotate out lightweight cranks after 3 years of service.