Alright, I've refrained from asking newbie questions. but the temptation has been too much:flipoff2: I got a remanufactured 302 longblock.. no harmonic balancer, no flexplate, no flywheel, no nada. How do you determine whether the balance is internal or external? If external, how do you determine 28oz or 50 oz? I've looked and the posts I've seen are dependant upon which flywheel or harmonic balancer you got... I got none. Any help is appreciated. I'm asking for sympathy here... I'd would contribute with more posts, but this place is so dang informative, I don't talk much... just listen:grinpimp:

I'm not going to be of much help, but Ford switched the 302/5.0L to the 50oz imbalance in 1982. I would probably wager that since it's a reman long block, it's most likely a 50oz model. Is it a regular or an HO engine? One difference is the firing order. If it's an HO it's most definitely 50oz unless it was custom assembled.

You could always just ask who ever sold you the reman long block, they should know better than any of us since they know what they put in it.

It's an 86 thunderbird engine bored .30 over. I got it from a company that acquired an inventory of a machine shop that went under. Originally it was fuel injected, but I'm going run it on propane. When I inquired about it the guy told me it is an HO but I have my doubts. Should there be any marks on the crankshaft or any other determining factors? Any input is appreciated.

Turn the motor over and see what firing order it has.
HO motor is:
1-3-7-2-6-5-4-8

Non HO:
1-5-4-2-6-3-7-8

Will do after work. Thanks.

easy, look at the rear main

Post 81 should be 50 oz, meaning an 86 t-bird motor should definitely be 50 oz.

easy, look at the rear main

1 piece rear main seals should be.. but you can use older cranks in those blocks, so it's not 100%.

pop the pan and take a pic of the crank. Look for the ID number on a counter weight.

Alright, sorry it took so long, I've busy. here's what I got so far... it's not flat tappet, it's got roller cams (Maybe this helps?) It looks like the casting ID is 2MAB. Thanks again...http://i137.photobucket.com/albums/q216/PINCHECHRIS_album/DSC00482-1.jpg

Interesting. 2MAB is a 68-80 crank, 28 ox balance... with a roller cam...? Maybe a mutt motor..?

What do you mean by a mutt motor?

Well.. 302s weren't roller motors with 28 oz cranks.. they were 50 oz balance.. so.. it could be an old motor with a roller retrofit... a roller motor that someone put an older bottom end into... or...?

How about some block casting numbers? (side of the block above where the starter sits.)

um. all windsor motors are internally ballanced.yes they did change the balance in 82 but it doenst matter what combo you use as long as its the same. i have a 93 5.0 cobra motor stroked to a 327 with harmonic balancer from a 66 289 and i can pull 8200 all day long, and have been for the last 5 years with and without nitros. firing is not found on the crank, firing order is determined by the cam, hints why 221,255,260,289,302's all run better when the 351 cam is put in it, also the same firing order as the "5.0". you can put a flat tappet hydraulic/ solid cam inside it but just keep the hydraulic roller quicker rpm's. it is not recommended but alot of people are running solid rollers on those hydralic cams with no problems

From what I remember the Block number is E6SEBA. I'll have to check when I get out of work. I believe it breaks down like this...

E = 198 (decade)
6 = 1986 (year of decade)
S = Thunderbird
E = Engine
B & A = I got no freggin clue.

As I mentioned earlier, the guy said it's an HO and he thinks it's internally balanced. This didn't sound right and the sound of his voice was no comfort. It was like "uh yeah it's uh internally balanced yeah sure." like he wanted to get off the phone. So if I have roller tappets i got a roller cam right? Maybe a dumb question but how do I find the firing order without having access to the cam shaft? The intake manny is an aftermarket so it ain't written there. (obviously I'm no mechanic, but I CAN bolt stuff together real good) Thanks for all the help so far guys.

Looks like an 86 roller motor with an early crank. Converting it to internal balance is expensive, there will be mallory metal welded into the counterweights. If you don't see evidence of that, try using the early 28 in-oz balancer and flywheel.

no mallory. there's a small oval on one of the counterweights that is not uniform with the rest of the c-weights. From my understanding, the mallory inserts are real noticeable. If this is correct, that's what it'll be... a 28 ouncer. Thanks for your help guys. I'd buy you all a beer but the way the ups guys handle packages down here, it'd never make it.:beer:

www.coasthigh.com. will be of great help if you have anymore ?'s

thanks. and thanks for serving our country. Be careful in iraq and fawk some shyt up while you're there:nuke::nuke::nuke:

From what I remember the Block number is E6SEBA. I'll have to check when I get out of work. I believe it breaks down like this...

E = 198 (decade)
6 = 1986 (year of decade)
S = Thunderbird
E = Engine
B & A = I got no freggin clue.

As I mentioned earlier, the guy said it's an HO and he thinks it's internally balanced. This didn't sound right and the sound of his voice was no comfort. It was like "uh yeah it's uh internally balanced yeah sure." like he wanted to get off the phone. So if I have roller tappets i got a roller cam right? Maybe a dumb question but how do I find the firing order without having access to the cam shaft? The intake manny is an aftermarket so it ain't written there. (obviously I'm no mechanic, but I CAN bolt stuff together real good) Thanks for all the help so far guys.

Nevermind the block, it has nothing to do with it and as mentioned above it could have either crankshaft. You need to find out what crank is in there since that is what the imbalance is dependant on. You need to find every casting number and part number on it and go from there. As far as the firing order, if you don't want to take the timing cover off and look for a part number on the camshaft then take the valve covers off and record which valves open while you turn the crank over (by hand).

So the crank has nothing to do with the firing order huh? I would have thought it does.

I know it came out of a T-bird but FWIW Mustangs started coming with roller blocks in 85, earlier ones could be converted.

Nevermind the block, it has nothing to do with it and as mentioned above it could have either crankshaft. You need to find out what crank is in there since that is what the imbalance is dependant on. You need to find every casting number and part number on it and go from there. As far as the firing order, if you don't want to take the timing cover off and look for a part number on the camshaft then take the valve covers off and record which valves open while you turn the crank over (by hand).
I went on a number search in the block the other day. I found what I could and took some pictures of what there was. the pic above is of the cast number on the 2MAB Crankshaft. I double checked with a friend of a friend whose got a machine shop and verified it was out of a 68ish ford. (Good call on that one Totalled) So that = 28oz flexplate. So that i got that on order along with the harm. bal. I'm probably going to hae to tear back into the intake manny anyway so I'll just yank the covers off then and start counting. Thanks for clarifying that paul.

um. all windsor motors are internally ballanced.yes they did change the balance in 82 but it doenst matter what combo you use as long as its the same. i have a 93 5.0 cobra motor stroked to a 327 with harmonic balancer from a 66 289 and i can pull 8200 all day long, and have been for the last 5 years with and without nitros.

This is incorrect. The reason your motor holds together is because most stroker cranks are balanced at 28 oz. Unless you custom balanced it all windsor motors are externally balanced.