Stock Elem Crankshafts??
 

I am aware that there some legal cranks for stock elem for BBC engines that callies makes. but with that being said I see they have some stock type ones as well but are not listed in the NHRA approved listings. can anyone please give me the scoop in regards to if it has to be a exact part number or if they will let a ''stock looking & type slide''? I am in need for a small block chevy 1985 305C.I. Thanks in advance.

Re: Stock Elem Crankshafts??
 

It must be listed in the NHRA accepted parts list, according to the rule book. That is the definition of "NHRA accepted". There is nothing listed for a 305. There is a procedure for requesting product acceptance on www.NHRAracer.com.

Re: Stock Elem Crankshafts??
 

Ok so it does actualy have to be listed then, I had just heard from a few engine builders that it was possible to use a forged ''stock type'' and get away with it. even if it wasnt listed as approved.

Re: Stock Elem Crankshafts??
 

Several years ago, we built a 350 out of a 305 by buying new 350 pistons and a 350 block. We used a 350 piston on 305 rods and used the 305 crank.Since 305 pistons are lighter than 350 pistons, the assembly had to be re-balanced.Most of the weight came off the pistons, and some was added to the crank. If you use a steel 350 crank with Manley or even OEM rods and good 305 pistons, it should balance pretty easily,as the weight will come off the crank only, it's got plenty of weight anyway.It is dimensionally the same as the 305 crank, just heavier, but the balance job will cover that. Sounds like a good way to go!

Re: Stock Elem Crankshafts??
 

I use the 1970 LT-1 350 forged crank. It's a bit more weight than the cast 305 crank, but never had a failure or any other concerns.

Re: Stock Elem Crankshafts??
 

Thanks for the replies, but can anyone recomend a good aftermarket crank that is legal for a 305 2piece rear seal.

Re: Stock Elem Crankshafts??
 

Yes. Callies. You just have to do the legwork. Or work with an engine builder or supplier who can and will.

Re: Stock Elem Crankshafts??
 

I looked at Callies, they do offer a dragonslayer that would be great, its just not on the approved NHRA list. if there is a trick to this or something please P.M me. I realy wnt to buy the best parts for my engine so I dont have to worry about building a grenade. I used to work for a shop that built comp elem engines, but stock is a total different world from what I am use to.

Re: Stock Elem Crankshafts??
 

Not likely you will get the Dragonslayer approved but you should be able to get something nice added to the list. I have had two cranks put on the list. It take a bit of legwork, effort talking to Bruce as well as the people at Callies. Once you have all your ducks in a row it goes pretty fast.

Here is the NHRA form.
http://www.nhra.com/userfiles/file/A...val%20Form.pdf

Re: Stock Elem Crankshafts??
 

Thanks for the info, I will start looking into this more.