building a 331

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07-05-2005, 02:02 PM

#11

Sidewayz6.0

Super Moderator

Join Date: Jan 2004

Location: IL

Posts: 10,637

RE: building a 331

The factory 5.0 block is fine for around 500 hp. But then they break if you start getting crazy.

07-05-2005, 03:47 PM

#12

stanglx2002

6th Gear Member

Join Date: Feb 2005

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Posts: 5,205

RE: building a 331

you add 14 lbs of boost to that stroker you will break the block in half

07-05-2005, 10:07 PM

#13

90Mustangfan

I ♥ Acer

Join Date: Jan 2004

Location:

Posts: 1,259

RE: building a 331

you wont break the block....I have seen many 800+hp foxes with stock block...those blocks are strong. my buddy has a 331 fox with 600 horse and it still has stock block....hes had it like that for 3 years ...still no problems

07-05-2005, 10:14 PM

#14

JustinBHR

2nd Gear Member

Join Date: Mar 2004

Location: Charleston, SC

Posts: 179

RE: building a 331

Fox blocks are not super strong. Sure there are people out there running alot of power, but the block is not designed to handle that much.

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