289 or 302 ?

[modmach1]

I bought a engine that should be a 302, but im begining to wonder because it said 289 inside the intake.

The engine code is: C5AE-6015E

When did the 302 come on the marked ?

www.moldestuket.com

 

[Great68]

It was put into mustangs sometime in mid 1968

 

[jcp123]

it's pretty common to put edelbrock performer 289 intakes on 302's...is that the intake you have on there?

 

[D.Hearne]

The C5AE-E is a 289 block , but could have a 302 crank in it, making it a 302. Only way to know for sure is to check the crank and rods.

 

[modmach1]

it's pretty common to put edelbrock performer 289 intakes on 302's...is that the intake you have on there?

No it is a original FoMoCo with C5 numbers (1965)

 

[jcp123]

oh ok...well with the 65 #'s it's probably a 289 but it could be a 302 if it's ever been opened up and had a 302 crank put in there. we did that on our '67 convertible. it was a c-code 289, dropped a 302 crank in there, and voila, we have a 302

 

[fastback brian]

If the crank is stamped 1M then 289, 2M is a 302. C3 rods are 289 rods, c8 rods for the 302. could be either if it was rebuilt. could even have a 289 crank with 302 rods. just look for the stamp on the first crank counter weight.

 

[modmach1]

Found it out
It is a 289 High Performance with 302 crank

 

[D.Hearne]

According to the High Performance Ford Parts Interchange book, the C5AE-E could be either, but these books are known for their mistakes, The best way to Id a Hi-po block for sure is to look at the main caps. They're thicker than the std caps from top to bottom.

 

[HistoricMustang]

mod, just curious how you determined it was a Hi-Po? It makes no difference to me but if you ever decide to sell the ride, you sure don't want to mislead someone by telling them it is a Hi-Po.

HistoricMustang
www.historicmustang.com

 

[modmach1]

The biggest car club in Norway, ACCN (www.amcar.no) found it out. They have the scandinavian biggest car books library and found that out when i gave them all the codes on the engine

 

[HistoricMustang]

Cool.

You have a nice collection of Mustang's!

HistoricMustang
www.historicmustang.com

 

[modmach1]

Thanks
I bought three Mustangs in one month

 

[modmach1]

What makes a HiPo more special then a regular 289 ?

 

[GaPonyFarm]

Its not a Hi-Po any more... If it has the 302 crank, its just a 289 with a 302 crank. Its the tested & stamped crank that really made the Hi-Po what it was... There was no real difference in blocks.

 

[HistoricMustang]

Good catch! Do not want to put anyone down, but we must keep this stuff clean for future "Mustangers" to enjoy.

It is not a "Hi Po" if it is a 302, unless it is called a "302 Hi-Po".

HistoricMustang
www.historicmustang.com