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Hey everyone, need some help big time understanding this motor. The backstory is I have been given my great grandfather's original 55 f100 from my grandfather. I've always been told the truck was original except for a fender replacement from a blow out in late 50s, a generator replacement, paint, and wheels. While doing a brake upgrade and general looking since i was under, i found the casting code on the block. The Vin plate shows it is supposed to be an ebv 239. The code on the block is ecz-6015-c. I know the ecz is for the 292/312 from the Cleveland factory. Does anyone know if the ecz could possibly have been put in the truck from the factory or maybe even a warranty? Are the intakes, carbs, heads, manifolds interchangeable? Am I even looking at the right number? The driver exhaust manifold is an ece code. Not sure if that helps. I'm just trying to figure out the right motor so I can buy the right stuff to freshen it at some point. And just FYI, this will hopefully be about 70-80% original if all goes right. Sorry for being long winded. Thanks in advance for any help.
This is interesting. It looks to have a high fan mount water pump which is indicative of a 239 or possibly a Lincoln Y Block.
Can you get the letters off the Intake and Heads?
I see a ground wire from a valve cover to the cab, that's a bit odd.
The engine looks red, so that would indicate it has been painted at one time. 239's were yellow in 55.
Did the 292 or 312 have the three bolt carb for the intake? With these things, I'm thinking just the block was replaced. I wouldn't think someone would do that with the 239 though, I figure they would replace the entire engine. I say that, but my engine was rebuilt in the late 60's and has a 272 head on it. The other head is a 239 head.... I would say the engine work was done in the 60's most likely.
How is that sticker still on the crossover pipe? Must not have been run too much.
You are correct as far as the coloring goes. The intake has bits of yellow showing through. The heads, block, front cover, pan, and valley pan all look to have been red. The sticker on the crossover I'm assuming was from a replacement at some point. The truck really hasn't been on the road more than a few dozen miles(I think) in the past 35 or so years. Before gpa gave me the truck 2 yrs ago, the last time I had seen it or ridden in it, was when I was knee high to a grasshopper. I'm mid 40s now. He had dropped it at a storage facility and it was sitting for a lot of yrs. I was always told it had a 292 and was original. Now that I'm seeing it as a motorhead with some auto experience I'm beginning to question all of it.
Thanks for helping me out with all this. I apologize for my ignorance on the early y blocks. They are new to me. I'm a windsor sbf guy. What does the interchange ability look like for these? Can you swap a 292 block in and not change anything else? I'm kinda figuring that the top end is turning out to be 239 but the short block is looking to be a 292. Is it possible to use 239 internals on a 292 block? Also, is the firing order different between the 239 and 292. It did have a bit of a miss when I played with the cap, rotor, wires, and plugs with gpa a few years ago. He's in his 90s and he started the process before I got there. So that may be a big part of some of my issues I have.
Firing order is the same for all y blocks. The stroke on a 239 crank is 3.10 verses 3.30 for a 272/292 crank. I can’t believe they would have swapped in a 239 crank, as that would have lowered compression. The ‘55 239 heads will fit on a 292 block without a problem, just smaller valves. The ‘54 239 heads is where you run into trouble.
Just an FYI. And I don't know if this helps solve the mystery or deepens it.
The two Cargo King engines (152 and 170 HP) were painted red like all 54 engines were. The two Power King engines (132 and 140 HP) were painted yellow.
Well, I finally got some truth after pushing a little harder for gpa to remember things. So the motor was changed by great gpa sometime in the late 50s or early 60s. It is a 292. When or why remains a mystery. Now I just have to figure out if it was the short block or the long block. If I'm correct, the top end from the 239 can be put on a 292 short block, but the distributor has to be a 292 as I believe it was unique to the 292? So that all leads to the next question of were there different 292 setups that I need to be aware of for parts lookup?
You’re good with the distributor. The ‘54 239 & 256 distributors had a 13 tooth gear driven from the camshaft. In 1955 all the distributors had a 14 tooth gear. In 1957 and up the distributors had vacuum and centrifugal advance. ‘54,’55, and ‘56 distributors had vacuum only advance. The ‘57 and up distributors give you more performance.
If you look for numbers on the heads, a 239 head will start with EBV.
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