413/426 ??

[Small Block]

Just asking because i don't know. Is the 413 and the 426 wedge blocks the same block just bored out differently? How are the heads different if so?? Cranks different? How do these two motors differ? Any web sites to go to to better tune up on this issue? Thanks as i know you guys will know.

 

[dusterdon]

Essentially the same blocks except the 413 is a 4.125 bore and a 426 is 4.250. You can't bore a 413 out to 426 though. They use the same crankshafts and heads. A 440 is a 4.32 bore. Same deal.

don

 

[70satvert]

Hmm...what you got planned?