Re: 350 SBC Crankshaft Advice
 

Few years ago was trying to get a small block chevy 2 piece seal forged crank approved so I didn't have to waste money on factory and cast cranks any more. (Started with 010 block then moved to bowtie when it was the only performance block allowed later the chevy steel crank started flexing. so I was committed.)

Called Callies and spoke to someone familiar with S/SS who told me the company had no interest in making cranks that could be approved it would mean a new line and inventory with very limited sales. Was warned that is how they would react by my buddy who bought many cranks from them over the years.

Years later the Callies crank on the list showed up can only assume an engine builder with good relations had the crank made and approved. Never personally checked to see if there actually was any inventory because was working with Scat who had a 1 piece seal crank approved on the list.

After 2 years of trying to get Scat to do the process, another case of "is the effort worth the potential business" called and purchased a crank to ship to NHRA, went through the process which was pretty simple it's on the list.

If someone wanted to go through the process of getting a Pontiac crank approved spending all the time and money you probably will be successful.

Re: 350 SBC Crankshaft Advice
 

Why add weight to the counterweights, weight has to be removed

What do you do with the side opposite the journal (counterweight) if the total rotating weight (bob weight + the weight of the journal) is reduced. Forget the bobweight, that's just a function of reciprocating and rod big end weigh?????

The weight is removed opposite the journal, you gain from the reduced weight of the journal side and the reduced weight caused by the removal of weight from the counterweight to balance it..

That's why a lighter crankshaft is better than a heavy crankshaft.

Make sense.....

Re: 350 SBC Crankshaft Advice
 

Hi John,

Nope...
Go the approved crank list and then the manufactures web site and take a look..

Re: 350 SBC Crankshaft Advice
 

Bob you are just causing mayhem ! LOL

Re: 350 SBC Crankshaft Advice
 

I hope so...….

I just sent in a 350 horsepower nitrous plate for approval in stock. I think that it has a good chance to be approved because it doesn't need an adapter to fit under a Q-Jet...

Just take a good look at what these people have done to my Stock Eliminator..

Take care Big boy

Re: 350 SBC Crankshaft Advice
 

Ya know Mulry, statements like that are the reason (not the only reason) that I like you!

Re: 350 SBC Crankshaft Advice
 

Hi Billy,

You just gave me a warm fuzzy feeling.

Me being from California / Brooklyn, NY I figure that you understand me better than most..

Take care and I hope to see you at the races.

Re: 350 SBC Crankshaft Advice
 

I have 800 Pontiac cranks. Your move.

Re: 350 SBC Crankshaft Advice
 

And this is a good reason for NHRA to NOT give Pontiac Racers an aftermarket crank why?

Re: 350 SBC Crankshaft Advice
 

If they are legal and look like that Callies SBC lightweight crankshaft, I might be interested???