Cunningham forged 4340 standard width (.780") K24 application
Cunningham forged 4340 .938" big end width K24 application

Im planning on giving up on boost because it is no longer fun lol... im planning on doing a 87.5 w/ the custom je pistons for k24's and running a 12.5 cr... and doing a k20 head and cam it with k-pro and a good header and i was just wondering which cunningham forged rod should i use... and whats the difference between the two? thank you

 

.780 width is for the stock, unmodified crank.

.935-.938 width is for use with widened rod journals (custom aplication).

If your using the stock K24 crank, youll want to use the .780 BE width rods (stock dimension)

 

o thanks and also how big of an effect could i have with a custom crank and how big of power goals would be seen? or is it not worth it...