[78w72]

dont make assumptions. based on the details provided, although still somewhat confusing, the cam/lifters should be fine. a small amount of coolant in the oil will make it cloudy after a short run, it doesnt mean the cam went flat or any other major damaged was caused from just a small amount of coolant in the oil for a short run time. the cam & everything simply needs to be inspected then go from there, don't buy parts that arent needed.

didnt you just go through selecting a new cam after the initial engine failure? why do you want to pick a different cam now for the same specs of the drive line?

[64speed]

I know it seems crazy but after I got the oil filter adapter to stop it just starting pouring water. I could see bubbles around the timing cover and of course the water outlet so I assumed that was the leak. I wish you guys could see it because it’s been one thing after another. It was putting a small amount of water in the oil at first and then about the 4th of 5th time I cranked it it dumped ALL the water into the engine. When I went to open the radiator cap it blew it off,. This engine doesn’t have hours on it, it has like 15 minutes. I drove it to the end of the street and back and that’s it. My machinist is gonna rebuild it no matter what is wrong with it. He told me that I could go back roller if I paid the difference between the 60919. I just wanted to solicit advice about what some of you would use. There was a difference of opinions on what cam to use earlier. This isn’t my first rodeo with a Pontiac engine but my previous two were over 20 years ago. I have never built a max effort street Pontiac.

[ZeGermanHam]

My head is spinning here.

[64speed]

Originally Posted by ZeGermanHam

My head is spinning here.

Mine too. This has been a disaster. The first was my fault but this is just ridiculous

[grivera]

Dave - at this point I would plan to keep the 60919 whether it’s the one in there now after inspection or a new one if that one was damaged. Not only will a roller cost more, you’ll need the polymer distributor gear, different pushrods and of course roller lifters. And after all that you may get a ticking lifter. Why torture yourself with all that when you’ve already been down that road? Especially since this will be a street only car. Keep it simple and stick to the plan you had.

[Gach]

I would definitely stick with the 60919

[lust4speed]

If helpers directly beside engine, looked for soaked helpers.

[Gach]

Yeah it may look like they pee their pants LOL

[grivera]

Good that it’s in pro hands now. The leaky adapter you fixed before the issue, right? This leaves the oil/coolant mystery

[HWYSTR455]

Your builder might be a stand up guy, but how many times are you going to have him rebuild it/fix it? The 'coincidences' are stacking up.

K, just saying what everyone else is thinking...

.

[64speed]

Originally Posted by HWYSTR455

Your builder might be a stand up guy, but how many times are you going to have him rebuild it/fix it? The 'coincidences' are stacking up.

K, just saying what everyone else is thinking...

.

I blew the first one up. Totally my fault. If for some reason I don’t get satisfactory resolution I guess I will search for someone else but I doubt it will be necessary.

[64speed]

Pinhole in one of the cylinders. He is going to sleeve the block and replace bearings. Cam and lifters are undamaged

[HWYSTR455]

No charge?

Usually, that's caught when checking a block before a build?


.

[64speed]

No charge. The block came from a “dealer” who sells BOP blocks in Virginia. The block was said to be checked. It came wrapped in plastic with a tag that it had been checked. I had to pay extra for a virgin block.

[NeighborsComplaint]

Why didn't that show up during break-in? Didn't anyone check the oil?

[Joe's Garage]

I'd pay for someone to THOROUGHLY SONIC-CHECK all the cylinder walls in that block before you put it all back together.

My concern would be that when there is a thin enough wall in any one spot for a pinhole, there's probably more than one thin spot or thin cylinders.

Good luck!

[tom s]

Pressure test!

[geeteeohguy]

Originally Posted by Joe's Garage

I'd pay for someone to THOROUGHLY SONIC-CHECK all the cylinder walls in that block before you put it all back together.

My concern would be that when there is a thin enough wall in any one spot for a pinhole, there's probably more than one thin spot or thin cylinders.

Good luck!

THIS^^^. If the block has core-shift or was overbored enough for a pinhole in one cylinder, the odds of the other cylinders being too thin are high. I would want a new block, the $$$ you have invested in this thing.

[64speed]

Originally Posted by NeighborsComplaint

Why didn't that show up during break-in? Didn't anyone check the oil?

I did some googling and I assume it’s a heat cycle thing from all I read. I have the dyno video. Ran fine. Yes the oil was changed here. 100% normal. New oil and filter before startup

[64speed]

I asked the builder to pressure test it before assembly and he has no problem with that. He didn’t mag it because it came “tagged” from a person who is supposed to be on the up and up. I won’t name his business until I see what he’s gonna do but he was a reputable source supposedly. If presentation counts the way it looked delivered then I can see why the mistake was made. The thing I appreciate is that it was owned by my assembler and I will have nothing further in it.