I just noticed that my crank is not normal in the rear.
My question is…my ultralight Crower crank only has 4 bolts holes in the rear and 99.9% of all other Chevy cranks have 6. My crank came from the sprint car world where they use direct drive couplers, these couplers are nothing more than a companion flange to the crankshaft. The theory of flange joints, such as a flywheel to the end of the crank, is that friction, not bolts, hold the rotation forces at bay so they don't impact the bolts in shear. At least that's what I remember in school. However the direct drive couplers in spring cars are small in diameter to they don't present any forces in other directions that could work against the bolts like a flywheel could if it was perfect, at least that is what I'm thinking.
I want to run this crank on the street with a 168tooth flywheel. I did a search and couldn't find anyone doing this. I obviously would use the best bolts I can find which are ARP pro-series and torque them properly. My Sprint car buddies say they know some circle track guys used these "used" up sprint car cranks but they are usually automatics.
Have you ever done this or heard of these cranks being used on the street in a stick? The local crankshaft shop, Moldex, says if I want they can weld two bosses to give me 6 if that’s what I want.
My question is…my ultralight Crower crank only has 4 bolts holes in the rear and 99.9% of all other Chevy cranks have 6. My crank came from the sprint car world where they use direct drive couplers, these couplers are nothing more than a companion flange to the crankshaft. The theory of flange joints, such as a flywheel to the end of the crank, is that friction, not bolts, hold the rotation forces at bay so they don't impact the bolts in shear. At least that's what I remember in school. However the direct drive couplers in spring cars are small in diameter to they don't present any forces in other directions that could work against the bolts like a flywheel could if it was perfect, at least that is what I'm thinking.
I want to run this crank on the street with a 168tooth flywheel. I did a search and couldn't find anyone doing this. I obviously would use the best bolts I can find which are ARP pro-series and torque them properly. My Sprint car buddies say they know some circle track guys used these "used" up sprint car cranks but they are usually automatics.
Have you ever done this or heard of these cranks being used on the street in a stick? The local crankshaft shop, Moldex, says if I want they can weld two bosses to give me 6 if that’s what I want.
