Originally Posted by Cab_Burge
This sounds like all custom parts, rods, pistons and ring package, what stroke, which rod journal size and rod length are you wanting to use?
Why use the weak, thin main webbing 383 blocks? Why not use a 400 block to start with? work scope


I am assuming the pistons will be custom......

383 block

4.25 stroke x 4.28 bore with a 6.535 rod

'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk