Newbe finds "mexican" block a few questions

[arnie84]

Newbe finds "mexican" block a few questions *pics added

Hello, I am new to the forum, from focaljet.com, and have a s/c Ford Focus. I just bought a 89 lx. To make it short I know a guy who knows a guy that wanted to get rid of his 1970 Ford van. For the hell of it I went over too look, and sure enough made in Mexico. I bought it for $150, and took it apart eveything looks good including the cylinder wall's, but the pistion say 040. I guess that means it has alredy been board out? I want to build a 331 , so am I screwed since it is already board out? I heard a 347 is hard on the rings becaus of the rod angle?
arnie84

 

[Boss 351]

if it really is bored .040 over but the cylinder walls are in great shape, just a hone job would do...

Any pics of the stang and the SC focus? Esp the Focus, how fast is it?

 

[Psychdaddy]

Agree with Boss 351. If the walls look like they are in good shape, a good torque plate hone job will suffice. The longer stroke on the 347 can cause issues, however I believe the newer 347 pistons have the wrist pin set lower in the piston which helps reduce stress on the rings. I purchased a '71 Mexican 302 and bored it 010 over and stuffed it with 331 internals (actually it is more like a 334 or 335) with the 010 bore.

 

[arnie84]

pics of Focus

The Focus ran 190 whp at 8 psi to get a base tune. I am adding blower cams, and uping the boost to 17 psi, and hope to hit 260-270 whp. All motor it had 165 whp and ran 14.8 1/4 mile. It weighs 2,360 pounds.

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