> My buddy Cougar Tom has a problem. He just had his 428 CJ rebuilt at
> a local machine shop. The dipshits bored it oversize without sonic
> checking and put it all together. He installs it, fires it up and
> antifreeze runs out the exhaust. Tears it down to find a 3 inch crack
> in the #7 cylinder. So his options are: get the block sleeved or find
> another block. I found for him a 361 ford block as well as a number
> of 390s. Whats the story on the 361? I seem to recall it being better
> to bore out than the 352 and 390. I have told you guys about this car
> before. Its a 1970 Cougar XR7 convert. with 428 CJ 4 SP. The block
> has no casting #s so he's thinking of a replacement block. He's owned
> this thing since the late 70s and has been restoring it now for the
> last 3 or 4 years. Its one of 17 built with this combo.
The 361 would be the same as the 391 block, if it is in fact an FT block.
Does it have the reversed 105 on the front?
You can not assume what block will bore over without a sonic check. The
problem is not so much wall thickness, although that IS a persistant
problem. The real killer is core shift. My 391 block was a dud for large
bores because of core shift.
I suggest having that cylinder sleeved, then bored for the new slug.
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