after 39 years...
eb has 289.
have a r.built fresh 302 bought couple of years ago.
"think" out of a mustang. but cant tell.
know it will bolt up...but..concerned about balancing.
289 is bolted to 3 speed standard and want to keep it.

so.
how do i tell what balancing issues i might have...
thanks

 

Ford changed the crank "im-balance" from 28 oz to 50 oz. Which makes the flywheel/flexplate and harmonic damper crank-specific. You can't use your original balancer or flywheel with a late-model crank. I think 86 and up 302 used the 50oz and 85 and down used the 28oz. So I guess it just depends on what year motor you have. Other than that I don't see too many problems using your original 3speed. I would buy a good name brand clutch and bolt her all up.

 

the new engine has a flex plate.
it is also "not" fuel injected.
guessing that since the guy i bought it from had plenty of 71-72 mustangs laying around his back yard....just guessing...was for one of those..

was part of a "package" deal. buy his 72 bronc get the other engine...
72 was toooo rough but kept the engine.

 

I have an 83 out of a mustang and it is 50oz ballance. i think this is first year of 50 oz.
Look above the starter to find casting number and year made.
Number should look like this 7A12 (7 is year- A is Jan.-12 is the day, Jan 12 1967)
If it was a 77 engine i think it would have a one piece rear main seal.
If it was 87 it would be fuel injected. Hope this helps

 

sounds like a weekend project
thank you

 

i did not know there were that many numbers there.

h27
eoae
d30
/16

did i find them.?
this is the only small block i own.
so i feel like an idiot.

 

The date code should be just above the numbers on the block.
Did you find these above the starter?
Another place to look for a date code is on the top front of the block right where the timing chain cover meets the block on driver side, there is a flat spot right over the water port, if the block has never been decked.
I will try to find a pic.

 

Look at this picture, just above the numbers they have white you can see the date code.(can't really see them but you can tell something is there)

http://www.classicmustang.com/casting_numbers.htm

 

ok
did not look in the right place

ok nothing above the starter.
nothing above the water inlet port drivers
there is a

6
_
30

on the passenger side below water inlet.
looks like i need to pull the intake....
loos there huh.

 

Is this erea really clean, i have heard that sometimes the numbers where put in with number stamps instead of the raised lettering as in the pic.

 

yeah
looks like it was hot tanked.
block is rusty.
but
i can see those other letters.
so why....
any way
do you think it would do any good to take off intake.?

 

ok
intake off
inside

xxx
80 ford 12
xx

on the very back of the block where the block was machined for the intake is

cb107451

i took the engien out of the shop and into teh light so i could do a natural day lite exam.
there are no raised letters that were cast other than the ones i mentioned before.

 

You may not have a 302, how many valve cover bolts do you have?
Does the fuel pump mount with the bolts top and bottom or left to right?

 

as richard pryor once said
"what the hell we got here Margo"
anyway
6 valve cover bolts
timing cover which is not installed. has side to side blots.
fe collectors should stay with what they know huh.
all i wanted to try to do is fresh up my 68 and make a better winter drive when i bring it home from the lake we have here.

 

We going to have to move this to the 302 page.
Scroll down a little ferther and post it there, i think someone will be able to help.
Sorry i have been unable to help solve your question.