I was told this 300 came out of a 1981 F100, wanting to put it in a 79 F150 and need a clutch. I cant quite make out the block casting number.
pics are the block then flywheel
Thanks

 

Pulled the engine out of my 79 last night and the block number is E1TE which i think would be a 1981 and the flywheel cast number is she same as pictured above with the stamped number being D7TE-HA which would be 1977. it has a 11" clutch disc.
It seems like my first picture, for what I as told came out of a 1981, shows a 1978 block, D8TE, If im reading that right, with a 1980 flywheel. it came with a 10" disc.
Ive got the replacement engine on a run-stand now (seems to run smooth), ill pull it later today and do a pressure plate bolt hole comparison.
Ive had the truck 27 years and assumed nothing had been done with the engine. Now im thinking it had a swap done at some point. I stuck a bore camera in to check condition and seen the pistons were stamped for a 40 over. I guess the flywheel was swapped as well.
sorry, im always a bit scatter-brained in posting

 

I have an '80 F-150 Flare Side that's going to get a '79 F-150 4.9. The engine is in storage and is dirty enough that I cannot read the block casting numbers.

But, I think you're starting to catch on. The C6AE number, cast into the flywheel, looks like a 1966 Ford Automobile Engine (C6AE) prefix. The part number; 6380 (I think that's an eight) is the Part Number (all flywheels are 6380). The suffix is C. The stamped number looks like E0TE-BA. That's an engineering number for the flywheel and, if you had the conversion chart, should match up to the C6AE part number (cast in). E = Decade(1980s), 0 = 1980, T = Truck & E = Engine. BA is the suffix. For an '81, that seems right.

If the engine runs OK, it should be good for a little while, at least. These things go 300K miles unless they were abused or neglected. 40 over means it's been gone thru at least once, if not twice. I don't know how much further you can bore that block.

 

My main question, which I've sort of rambled around, is which clutch should I use with the D8TE block with the EOTA-BA flywheel that came with it. The 10" disc is marked Valeo made in Korea , the pressure plate has some illegible marks that look like quality control. no part numbers anywhere.

 

Great question. I have an automatic so I would not be the correct person to ask. That said, I would check to see what Jeg's or Summit lists for your truck using the correct model year (1981). Even though your engine seems to be from the late 70s, the flywheel seems to be O.E. (or correct for the Model Year of your truck, if replaced). Those web sites usually list engineering data so you should be able to determine if what you already have is correct (or not). You can always call them too. Summit seems to have very good customer service.

 

I now think that Ill be ok using the flywheel from the my 79 that uses a 11" clutch. Seems the 300 flywheels are the same except pressure plate bolt holes.
Thanks

 

You are right some of the 80's fly wheels are drilled for both the 10" & 11" disc.
I did not know this when I was rebuilding my 81 F100 truck and went with the stock 10"
Been good for the last 5+ years and 28+K miles.
Dave ----