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Discussion Starter #1
Is a '66 289 block the same as a '68 302???Strength,,,cylinder length....Russ...
 

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No, they are not the same,(although very similar) the bores are 1/8in. shorter on the bottom.
 

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Discussion Starter #4
n2omike....I read that one.....Kind of a split....some say same some say not....I have both engines, guess the only way i'll know for sure is tear both down and see for my self.....Russ
 

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Discussion Starter #6
Thanks.....This will save me a lot of work....The 302 is in a '68 meteor....The car is sunk to the oil pan in the field....Also it's frozen in....-30F last night.....I would have to tarp the car and put a herman nelson diesel heater on it for a few hours just to get the car in the shop to pull the motor......The 289 is out already.....Russ....
 

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Discussion Starter #7
I just tore down the 289 (C6AE-6015-C)Measured the cylinders,,got 5.070....That's 0.055 short of 5 1/8" about the thickness of a dime.....In a book i have it states that '68 to '69 302 blocks have Extended cylinder skirts......Block #'s C8OE-A,,,D2OZ-C,,,,,D1ZZ-C.....But how long are they???
Should i be worried about the extra length or just stroke the 289????Russ....The book is "Max Performance Ford V-8 On a budget" By George Reid.....Good book...
 

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if you're gonna be strokin, you'll be grinding on the bottom of the cylinders anyway.
 

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Discussion Starter #9
Here is my findings on cylinder length....The snow was gone (just started snowing this morning,,,) and the frost is out of the ground....Tore down the 302 (C8OE)Cylinder length measured (drum roll)
5.185....So now i know for certian,, that the two blocks I measured,,,the 302 has longer skirts by 0.115...is it worth the extra lenght for stroken? (my wife says YES)
but for my 347,,,,I don't know.. i'm going to use the '68 302 and save the 289 for someone that want's a 289....Russ...
 

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289 and 302 blocks are just a little different in cylinder length, EXCEPT for 1968 blocks, they are both the same. Ford just produced the 302 block in 68, but put some 289 rods and cranks in some (therfore it is a 289, in a 302 block) The best block to work with is a mexican 1968 289 or 302 (or anything newer than 1968 Mexican) because of the higher nickel content in the mexican blocks, it makes them stronger, as well as the thick main caps on them. Just like the main caps on 289 HIPO's.
 
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