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Discussion Starter #1
I puchased this engine under the assumption it was a hi-po now i am totally confused can anyone help on this one. I have the following Block C5AE-6015E
heads 66 289 C60E srcrew in studs seems triple value springs
crank shaft 2MAE
rods C3AE-D Please help?
 

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I puchased this engine under the assumption it was a hi-po now i am totally confused can anyone help on this one. I have the following Block C5AE-6015E
heads 66 289 C60E srcrew in studs seems triple value springs
crank shaft 2MAE
rods C3AE-D Please help?
The block was the same numbers whether it was HP, 4V, OR 2V. The 289HP used C5OE-A heads, with cast-in cups around the base of the dual springs. The tall-tip valves and polylock nuts in this photo are wrong, so don't pay that any importance.

 

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Realize that HiPo 289's use many of the same casting numbers as the factory 289 engines. Where their true value and purpose differentiates is on specific components that are unique to them apart from standard 289 engines. For example, the heads, exhaust manifolds, beefier main caps, 3/8" rod bolts vice 5/16" (9/16" vice 1/2" nut size). If you have any pictures, please send them to me offline at [email protected] and I will help you id the parts you have.
 

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The HP rods were C3AE, with 3/8" bolts, and a little oil squirter on the top of the bearing journal.

 

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According to my Ford Parts Identifier book -

The block is a std 6 bolt housing. A K block should have the last letter as an A for 1965.

The heads are std 289, someone just added the screw in studs, not abnormal to do.

The crank is weird, it could be a 1968 302 crank.

The rods are std 289.
 

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Discussion Starter #6
well this is assembled already without heads and cam installed, its been bored 30 new pistons and rings and cam bearings installed. i come up with a 81 302 crank shaft its just all crazy and now i am starting to think i got took to the cleaners, unsure if all will work together or not?
 

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It is likely that it won't work. Rotate the crank and see if the pistons pass the top of the bore. Even if it they do not, you may have valve clearance issues once you add heads. You definitely have a mongrel. There are plenty of people out there that misrepresent things, and also those that are just uneducated. If I had a dollar for every time I have seen someone claim 'Hipo' (or my other fave - 'Hipro') when it's just a plain 289 or 302 I would be retired. You will find people associating Hipo with any 289, and Boss with any 302. Best to always be skeptical. What did this assemblage of random parts cost you?
 

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You have a later 302 crank with the 289 rods (same length as the boss 302 rods)....but the combination of the rods and that crank you will have problems.

It may be possible that you could run them with later heads and the thickest head gasket you can find, but it might be iffey...They do make pistons for stroker motors, and you may find one you can use....

Your options would be: Find a set of 302 rods to match the crank, or look fo a 1M crankto fit the rods.....I would probably option to find a set of 302 rods, and buy some new pistons and balance everything up.....

What I'm saying is you have a number of options, so if the block is sound, and you want to use it, you can....
Tom
 

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If you have a 302 crank and 289 rods, you could simply use a set of BOSS 302 pistons.
 

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isn't it also true
that Hipo's had the K s/n stamped into the block
not all, but most?
iowa
 

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....You will find people associating Hipo with any 289, and Boss with any 302. Best to always be skeptical. What did this assemblage of random parts cost you?
Amen Brother! I am 48 years old and have been chasing the "My cousin has a Boss 302 in his back yard..." story for 32 of those 48 years. I have NEVER seen ONE that was a true Boss 302. But I did find a Boss 429 one time for $800. Unfortunately I was a broke teenager at the time.
Now I did pass on a Chrysler Hemi that was advertised as a 426 but was only a 392. I wish I had bought that one!
 

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Amen Brother! I am 48 years old and have been chasing the "My cousin has a Boss 302 in his back yard..." story for 32 of those 48 years. I have NEVER seen ONE that was a true Boss 302. But I did find a Boss 429 one time for $800. Unfortunately I was a broke teenager at the time.
Now I did pass on a Chrysler Hemi that was advertised as a 426 but was only a 392. I wish I had bought that one!
I was a broke collage kid in 1980-1981 when I found a 427SOHC motor in a local junkyard, it was a complete running SOHC, and I didn't have the 900 bucks to buy it......grrrrr
Tom
 
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