Originally Posted by DARTGTS340
Originally Posted by Dragula
For the money, the Eddy heads are the ticket....We paid $2300 for our last set and put them on a little 484 Hemi street car....That thing was a beast and went 10.27 at over 130mph...The machining on the two sets we have bought has been spot on and they are heli coiled in all the right places right from the factory. Indy Canfield heads I would put as a distant 2nd place...

https://www.youtube.com/watch?v=mrm62S2Fmow&t=135s


What about the relocated exhaust valve in the Eddy head. How much and where does the valve relief have to be moved on a 426 hemi piston?
Will they bolt on or does a stock 70 block need any modifications?


At your compression....none....Gets tricky at 12:1....Most pistons still clear though as the reliefs are usually bigger than tyhe valve size.

'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