402 Crank Differences? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

dave3156 · 03-21-2005, 07:41 AM

I have read that there is what is described as a "truck crankshaft" and the "#6223 Crank from the 375hp engine" My question is what is the difference and since I am doing a performance rebuild, do I want the #6223 Crank? Thanks

COBRO · 03-21-2005, 03:45 PM

Only different cranks Ive ever heard of was some 427 cranks had larger rod journal dia. in the higher output engines. All factory cranks for the 396/402 - 427 were forged steel so any of them would be ideal for a performance engine.::::::::CB

03-21-2005, 07:41 AM	#1
dave3156 Registered User Join Date: Mar 2004 Location: St. Louis, MO Posts: 336	402 Crank Differences? I have read that there is what is described as a "truck crankshaft" and the "#6223 Crank from the 375hp engine" My question is what is the difference and since I am doing a performance rebuild, do I want the #6223 Crank? Thanks

03-21-2005, 03:45 PM	#2
COBRO Active Member Join Date: Jan 2005 Location: RDM,Oregon Posts: 285	Only different cranks Ive ever heard of was some 427 cranks had larger rod journal dia. in the higher output engines. All factory cranks for the 396/402 - 427 were forged steel so any of them would be ideal for a performance engine.::::::::CB



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