60 over is really pushing it .Get another block !

 

I wonder what type of piston the machine shop would use for a .080 over???? Even if you could do it.

 

IMHO, I'd look at these options. First, I'd find another machine shop. Any place that would even suggest going to .080" overbore on a SBF needs their head examined. Maybe on an FE, but not a SBF! Considering the ability to find a correct block (hopefully with standard bore) that needs "freshening", you may find that resleeving your existing block is not all that cost in-effective, given the cost of another block and machine work. The last option is to remove your "original" block and heads, cosmoline it up and store it away, and pop in a late 5.0.

 

The guy must be pulling your leg!! You are setting yourself up for failure. In this situation you need to be looking for a block. I do not even like to the 60 over setup. You are pushing the envelope on this one...

 

Time for a roller block!

 

Hello Sunlit68GT, I have to agree with the group. 0.060 over is the limit. Finding a vintage block with comparable casting dates should not be too hard. I think there is a '68 302 posted in the Great Lakes Region on this forum. (Not mine.) Depends on what kind of casting date your looking for. As you look, remember that Ford was not precise on first in first out inventory control. If you know your vehicle build date and your block casting date you know everything necessary. Don't let anyone tell you differently; there is no difference between a 2 barrel and 4 barrel (J-Code) block. Using the rest of your existing parts should be no problem. I have a fair number of J-Code 302 leftovers. Regretfully, no block. If you find a need for any leftovers, please send me a private message. Best of luck .... Love that Sunlit Gold color! Rick (Frankenmuth, Mich)

 

Sunlit68GT ..... Just went and looked Dons70Stang on the Great Lakes forum has a 1968 302 2 barrel out of a Cougar posted for $300. He says he is near Detroit. It is worth a try ..... Perhaps you can get lucky on casting dates. Rick

 

Sunlight....I may have what you are looking for. I have a 68 Sunlight gold actually (ironic), coupe with a 302 and C4 trans. I have a few more parts that I want off it but I will give you a great deal on the driveline if you are interested. I live in ROYAL OAK....Send me an email jchatas@tmp-architecture.com or send a PM.

 

If you are really intent on saving that exact block, have it sonic checked by a reputable shop. You need no less than .135 wall thickness on all cylinders in all locations (for .125 after boring..). They should check parallel and perpendicular to the long axis of the block, in at least three spots (upper, middle, lower cylinder wall) on all 8 holes, and record the results.

Do not be surprised if you have thin walls in a number of places. They weren't that thick to begin with, and are well known for core-shifts. You will likely be throwing $100 down the toilet, but that's better than building a "grenade".