pros and cons of a lightweight crank?
 

can anyone tell me the advantages and disadvantages of running a scat superlightweight crank in a street driven 383 chevy? i know you can rev a little quicker but are the gains worth it? thanks

pro: lightweight
con: expensive
wallet: lighter

A lightweight crank is usually not recommended for the street. The real end result price goes up exponentially if 'heavy metal' has to be added to get a balance. Special bearings with provisions for the bigger fillets usually found on light cranks must be used. For the street, money is better spent on cyliner heads and durability.

While capable of freeing up some HP going to a lighter crank requires equally light connected parts to make it all work ie rods and pistons. Run of the mill rods and pistons won't get you near the bob weight needed to balance out. So like the previous poster said you'll end up having to add weight back onto the crank which is expensive and negates doing it in the first place.

makes sense!
 

thanks yet again!

good info to know