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Mike Jones · 12-24-2019, 01:29 PM

You didn't say who made it, but you should check the rulebook: "Stock OEM or NHRA-accepted aftermarket crankshaft mandatory. Aftermarket crank must retain OEM configuration (i.e., billets, knife edging, etc. prohibited). Lightening of crankshaft other than normal balance job prohibited. Aftermarket SFI Spec 18.1 harmonic balancer mandatory in AAA/S through G/S and AAA/SA through G/SA. See General Regulations 1:2. "
….and you can sort through the link below
Good Luck and Merry Christmas

http://www.nhraracer.com/Files/Tech/...edProducts.pdf

12-24-2019, 01:29 PM	#2
Mike Jones VIP Member Join Date: Apr 2012 Location: Connecticut Posts: 1,125 Likes: 1,179 Liked 684 Times in 289 Posts	Re: 305 crankshaft {stocker) You didn't say who made it, but you should check the rulebook: "Stock OEM or NHRA-accepted aftermarket crankshaft mandatory. Aftermarket crank must retain OEM configuration (i.e., billets, knife edging, etc. prohibited). Lightening of crankshaft other than normal balance job prohibited. Aftermarket SFI Spec 18.1 harmonic balancer mandatory in AAA/S through G/S and AAA/SA through G/SA. See General Regulations 1:2. " ….and you can sort through the link below Good Luck and Merry Christmas http://www.nhraracer.com/Files/Tech/...edProducts.pdf Last edited by Mike Jones; 12-24-2019 at 01:34 PM.