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Already have a machined crank and rods, as well as the heads. Had an entire rebuilt engine but the block was bad. Long story. Starting with a new block and this opportunity is sitting on the shelf at a reasonable price.

Never mind

True. But I figured some people here would at least have an idea what they have seen. And from the answers here, and other info I found, chances are they are around 71 or 72 cc. I know it's not overly difficult, but I also know that if I am off a few ccs, it is not going to change anything I...

I got a micrometer on the valves today. They are definitely 1.88 / 1.60.

I did not have that block machined. My sister ordered a complete long block from a national engine remanufacturer, and this is what they sold her.

I did build the current block. It was purchased as a complete long block from a national engine remanufacturer. IT was purchased with every performance upgrade they offered - upgraded cam, higher compression pistons, double roller timing set, upgraded valve springs. But it was freight...

Every site I found also lists that same casting number for 81-83 318s.

Thanks! Everything says these were made from 77 to 83, so that makes sense.

I have zero faith that I will not eventually find other issues in other cylinders. This engine has never even been pressurized. We were simply turning it over by hand getting ready to install the distributor and noticed coolant coming out of the cylinder. It did not even have a cap on the...

I know these are nothing special. Both are 4071051 casting numbers. Both say P3 on the top. Both have a 9 and the same dial casting mark. This is every casting mark we can find. I know these are nothing special. Just wondering about chamber size. Multiple searches on multiple sites did...

Finally pulled the piston to confirm the problem. There are two visible holes in the cylinder wall. They are not small holes. One is approx. 1mm, and the other is nearly 2mm. They were just deep enough in the cylinder to be hidden by the piston, but at least the top hole was above the rings...

Classic argumentum ab acutoritate.

They are the best shop in the region. This block is already bored thin. Any shop who would not at least verify adjacent cylinders after doing a sleeve, I would not take anything to. And the other work is the proper way to do it. Any shop that does not redeck after sleeving, I would also not...

My shop will machine the entire block for a little over $500 and that includes some of the new bearings I will need. To sleeve one cylinder is less than $200. But they cannot just sleeve it and walk away. They have to check adjacent cylinders for distortion, and they have to redeck the block...

Exactly. I already have another block torn down and ready to machine.

I tried calling once and never got through. Problem is, they are 1K miles from me. Shipping alone is $200 one way for a short block. And when I say this is out of warranty, it sat for over 3 years wrapped in the shipping crate. Warranty expired in 2021. 100% my fault, but it is what it is.

That's good advice. I might do just that. I will see what my shop tells me when they scope it.

Honestly, a cheap unit I found on Amazon. Cost me like $25.

I am not saying you are wrong. I am saying, I don't want to play this game twice. And I am not a big fan of fool me twice. I really do appreciate your advice and perspective. The story is a lot longer with the entire project than I will bother you with. I have a block from a running engine...

Sleeving the engine is just as much work as a new block and similar cost. To sleeve the engine, I have to tear it down to completely bare. The shop will not touch it otherwise. The shop will have to sleeve it, bore it, hone it, check adjacent cylinders, redeck the block. I already talked to...

Warranty is expired already, and when I contacted them, they did not even answer my email.

I know bore size has been debated to death. Search this forum or a Google search and that debate has been going on for years. Some guys say .040". Some guys say more. With an unmolested block, at least I have something to build from. I will trust my shop to tell me if it can or cannot...

I have no faith in this block because I do not assume what caused the crack. I definitely do not assume they bored the cylinder holes too thin. For all I know it was frozen, or otherwise stressed, and other problems simply have not shown up yet. If the remanufacturer missed one defect, how...

At this point, I have no faith in the block. I found a 1967 complete engine, minus the heads, that has never been torn down. I already have it down to the bare block, and will have a local shop go through it completely. I have wasted FAR too much time and money on this project to take...

Purchased a complete 318 long block remanufactured engine during COVID. Project got tabled for a while. Recently got to the point we were ready to fire the engine for the first time. Was about to install the intermediate shaft and distributor. Fortunately, we had the plugs out to make it...

So my mistake guys. This engine is not sleeved. The cylinders were all so clean even 3 years after they were bored, it just looked sleeved. I just was not paying very close attention. It is simply bored. Head passed pressure test at a performance machine shop locally. I really do not think...

I am dropping the head off at a local machine shop tomorrow morning to have them pressure test it.

It was pressure tested on the bench, not run tested. They never even installed a water pump. They have a machine that will turn the crank and read cylinder pressures etc. There definitely was no liquid anywhere in this block except assembly lube until I dropped it in.

Every cylinder is sleeved, unless I am losing my mind. Unless later blocks came sleeved from the factory - which could be. I do not claim to know all the different engines Mopar made well. It does look to me like the head gasket was barely compressed.

A pressure test is where I should have started. But the leak was enough that I expected to find something obvious, and just started disassembling to find it. And found nothing. Good news is with a new sleeved cylinder, I can pretty much rule out the block. Think I am going to have the head...