426ci

well ive seen 408ci from 360s and 416 from 340s but what about the 426 from 360 using the kit from hughes ?

having better results than 408ci ? or its the same thing when it comes down to ETs?

IMO the longer 4.180' stroke will get you better ET's. the 1.44 rod/stroke
ratio will keep the peak revs on par with the 1.53 rod/stroke ratio with the
4.00" arm. the average street car won't feel the difference tho. but with
the cubic inch difference and greater torque from the 4.18" arm you'll get
some noticable difference from the 408, not so much from the 416. Long
strokes & smaller bores make for KILLER street engines.

check this kit out (gonna order this for my 360):

http://www.ohiocrank.com/mopar_rotate.html

the custom JE slugs that come with it @ .070" over (4.070" bore)
and you got a 426. however make sure you sonic test the block first.
as long as it has .200" on the major thrust side your good to go.