Are these bearings ok?
Thread Starter
Burning Brakes
Joined: Mar 2022
Posts: 1,159
Likes: 491
Are these bearings ok?
I finally got my 350 engine block back from the machine shop that got the works, including clearance'ing the block for the 400 crank (making a 383/385). I had to provide the crank, pistons, rods, and bearings for them to clearance the block for the larger crank.
When I go everything back, and upon inspection, I noticed the bearings that they used each have a scratch in the middle - they are very shallow, but you can kind of feel them when you run your finger nail across them. Is this going to be an issue, or am I being too nitpicky? See picture below:
When I go everything back, and upon inspection, I noticed the bearings that they used each have a scratch in the middle - they are very shallow, but you can kind of feel them when you run your finger nail across them. Is this going to be an issue, or am I being too nitpicky? See picture below:
Last edited by Corvette-ZL1; May 28, 2022 at 11:29 AM.
Le Mans Master
Joined: May 2007
Posts: 5,007
Likes: 1,114
From: North tonawanda NY
I finally got my 350 engine block back from the machine shop that got the works, including clearance'ing the block for the 400 crank (making a 383/385). I had to provide the crank, pistons, rods, and bearings for them to clearance the block for the larger crank.
When I go everything back, and upon inspection, I noticed the bearings that they used each have a scratch in the middle - they are very shallow, but you can kind of feel them when you run your finger nail across them. Is this going to be an issue, or am I being too nitpicky? See picture below:
When I go everything back, and upon inspection, I noticed the bearings that they used each have a scratch in the middle - they are very shallow, but you can kind of feel them when you run your finger nail across them. Is this going to be an issue, or am I being too nitpicky? See picture below:
Thread Starter
Burning Brakes
Joined: Mar 2022
Posts: 1,159
Likes: 491
They told me they needed the assembly because they had seen a few stroker assemblies come into the shop where the bearing cap bolts were not clearing the clock, depending on the kit. I told them from the onset that I had purchased an Eagle rotating assembly to stroke it, and initially they said no problem. A week after telling them that, I called to check how the progress was going, and at that time, the manager said the machinist requested my rotating assembly because of the aforementioned reason. I thought it was a bit odd, but I didn't question it too much, as they are supposed to be the experts.
So, these bearings should be ok to use then? I'm not holding anyone to their guidance, as I ultimately have to be the one who makes the decision as to whether to raise the issue with the machine shop and replace with another set of new bearings. I would just prefer to use them if I can, since the entire assembly was balanced with the existing components, and I'd hate to replace the bearings if I don't need to.
Burning Brakes
Joined: Aug 2013
Posts: 1,069
Likes: 320
From: palm springs ca
Hi Dom, et al...
They told me they needed the assembly because they had seen a few stroker assemblies come into the shop where the bearing cap bolts were not clearing the clock, depending on the kit. I told them from the onset that I had purchased an Eagle rotating assembly to stroke it, and initially they said no problem. A week after telling them that, I called to check how the progress was going, and at that time, the manager said the machinist requested my rotating assembly because of the aforementioned reason. I thought it was a bit odd, but I didn't question it too much, as they are supposed to be the experts.
So, these bearings should be ok to use then? I'm not holding anyone to their guidance, as I ultimately have to be the one who makes the decision as to whether to raise the issue with the machine shop and replace with another set of new bearings. I would just prefer to use them if I can, since the entire assembly was balanced with the existing components, and I'd hate to replace the bearings if I don't need to.
They told me they needed the assembly because they had seen a few stroker assemblies come into the shop where the bearing cap bolts were not clearing the clock, depending on the kit. I told them from the onset that I had purchased an Eagle rotating assembly to stroke it, and initially they said no problem. A week after telling them that, I called to check how the progress was going, and at that time, the manager said the machinist requested my rotating assembly because of the aforementioned reason. I thought it was a bit odd, but I didn't question it too much, as they are supposed to be the experts.
So, these bearings should be ok to use then? I'm not holding anyone to their guidance, as I ultimately have to be the one who makes the decision as to whether to raise the issue with the machine shop and replace with another set of new bearings. I would just prefer to use them if I can, since the entire assembly was balanced with the existing components, and I'd hate to replace the bearings if I don't need to.
Dom
Race Director
Joined: Jul 2015
Posts: 13,082
Likes: 3,399
From: SW Florida.
bearings are cheap. and not going to affect the balance. so, it is a new crank? not a 400 crank as you said in first post? so everything is standard? do you know the clearances or is it just standard crank and standard bearings so it should be in spec?
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Le Mans Master
Joined: Mar 2004
Posts: 7,446
Likes: 1,475
From: Little Rock AR
Those are fine. I had a shop do the block clearancing and balancing on my 383 and ended up with the same marks on my bearings. They told me in advance it might have a few marks on them when they were done. No issues with it.
Thread Starter
Burning Brakes
Joined: Mar 2022
Posts: 1,159
Likes: 491
Thanks for the input, everyone! I'll be using the existing set, and not purchasing another set. At $100+ for a new set of bearings, although not terribly expensive in the grand scheme, if I had to buy another set because of a couple of minor scratches, I would have been mildly annoyed.