Stocker Crankshaft Heavy Metal

Bill Harris · 02-04-2012, 12:49 PM

Based on this NHRA tech bulletin for what is legal on a SUPER Stock crank:

http://www.nhraracer.com/content/gen...9848&zoneid=85

and the STOCK rule that the crankshaft has to be "stock OEM" for the engine claimed, and "Crossbreeding parts prohibited.", then a 305 crank being massaged for a 350 application is blatantly illegal in stock. S/S, fine, but not in stock. Will he get caught? Almost certainly not. Are there a jillion other stocker engines out there with illegal cranks? Almost certainly. Does it make it right, absolutely not.

02-04-2012, 12:49 PM	#14
Bill Harris Member Join Date: Mar 2002 Location: Ooltewah, TN Posts: 421 Likes: 13 Liked 26 Times in 13 Posts	Re: Stocker Crankshaft Heavy Metal Based on this NHRA tech bulletin for what is legal on a SUPER Stock crank: http://www.nhraracer.com/content/gen...9848&zoneid=85 and the STOCK rule that the crankshaft has to be "stock OEM" for the engine claimed, and "Crossbreeding parts prohibited.", then a 305 crank being massaged for a 350 application is blatantly illegal in stock. S/S, fine, but not in stock. Will he get caught? Almost certainly not. Are there a jillion other stocker engines out there with illegal cranks? Almost certainly. Does it make it right, absolutely not. __________________ Bill Harris ex 2172 STK ex 2272 S/S