well I'm looking at building a motor this winter I'm leaning towards a 370 stock crank callies H-beam rods Wiseco -11 dish 2618 pistons

but I've been looking at building a 390 I'm just having a hard time finding the right pistons and rods i know i need a 3.90 stroke crank what length rods would i need 6.125 or 6.200

i know the 370 will be cheap and reliable

but id love to build a 390 which will be more expensive

ill be running a procharger D1SC but i plan on doing a F1 down the road

 

Have you thought of going with a 3.800" stroke and a bigger piston to reach 390ci? Not much of a difference but should be a stronger set up in theory. You'll need 6.125" rods

 

I've looked at the AES 390 and they use a Callies 3.825 stroke crank 6.125 rods and custom pistons

 

When starting with an iron block you are pretty limited as to how you can reach 390ci

Kurt's on the right track with a 3.825 stroke and a 4.030 bore.

 

I'm gonna call AES and see if they'll sell me a set of there custom Pistons then all I need is the crank and rods

 

Yea 3.825" is what I was thinking of. Nobody makes pistons for that stroke besides AES?

 

Aes uses custom diamond pistons. He just orders large batches of them. No ine makes an off the shelf though. Not as far as I've seen.

 

or a 3.825 crank with 6.200 rods and off the shelf 408 pistons comes out to 390 CI not sure if it would work or not

 

called AES today $3,300 for the whole rotating assembly not balanced

$1,100 for pistons with file fit rings ouch!!!

i can get rods and pistons to build a 370 for $1,200