Largest Bore and CID Of FE ?

[TJ]

With budget in mind, a standard bore 352 stroked to 4.25 will make a "427" and a relatively easy 450 or more hp.  While it's not the magic 600hp, it will still make a Cobra "clean the ditches" as they say... just something to think about.

[Barry_R]

Maybe a better question is "how many cubes" can we adequately feed with current FE head capabilities?  The best wedge heads I have seen are right around the 400cfm range, while the best SOHC heads are in the 450-460 ranges.

[scott foxwell]

Maybe a better question is "how many cubes" can we adequately feed with current FE head capabilities?  The best wedge heads I have seen are right around the 400cfm range, while the best SOHC heads are in the 450-460 ranges.

Valve size is something to consider as well...

[wcbrowning]

Maybe a better question is "how many cubes" can we adequately feed with current FE head capabilities?  The best wedge heads I have seen are right around the 400cfm range, while the best SOHC heads are in the 450-460 ranges.

So what displacements are those respective flow ranges adequate for?

[chris401]

Regular FE, not SOHC:  4.440 bore x 4.400 stroke = 545.004 cubic inches.  Shelby big bore option, or BBM taken out to 4.440 will supposedly still have enough thrust wall to be safe.  It has been done.  Joe-JDC

That's a big FE. Is it around here?

[Joe-JDC]

"I know nuthin'".  The billet Moldex 4.400" stroke was accepted as the longest stroke feasible, and Shelby offered special liners called the "Big bore" option for years.  My personal BBM is 4.390" x 4.375" for 530 cubic inches.  My Shelby is 4.250" x 4.125 all aluminum.    Joe-JDC

[67gt350]

I like the point Barry brought up. If you could get to 600 plus cubic inches where/who is going to have a cylinder head/intake combination to feed it. Certainly nothing that isn't custom all the way.

[TJ]

Considering all the aftermarket parts out there, the FE can be built well beyond its original design in terms of displacement and performance.

[427HISS]

"I know nuthin'".  The billet Moldex 4.400" stroke was accepted as the longest stroke feasible, and Shelby offered special liners called the "Big bore" option for years.  My personal BBM is 4.390" x 4.375" for 530 cubic inches.  My Shelby is 4.250" x 4.125 all aluminum.    Joe-JDC

Joe,  the BBM's 4.390" x 4.375" for 530 cubic inches is great. Just wish I could afford one.