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Re: Pro Comp BB Victor CNC heads [Re: fast68plymouth] #2558306
10/03/18 03:27 PM
10/03/18 03:27 PM
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You're right about the EMC builds that used Procomp BBM heads. Jesse Robinson and his team used them one year (maybe two?) and Randy Malik did the same year, too.

I tried looking for online articles that might show their respective valve trains, but didn't come up w/ anything that I didn't know already, such as the JR entry had T&D rockers. I was hoping to see whether either one had milled the stands off completely, or ???, vs just bolting them down. No such luck...

It occurred to me while typing this that I could dig out the ol' Procomp "Crash Test Dummy" porting R&D head and compare the rocker stand saddle fit w/ my Victors'. scope

Re: Pro Comp BB Victor CNC heads [Re: fast68plymouth] #2558317
10/03/18 03:40 PM
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I remembered I still had those heads here from last year that I finished up the repairs on.
Those had been run with a .700 lift roller cam.
I checked them out and the contact pattern in the saddles from the shafts looked fine, so I stuck a shaft on the head to see how it felt.
No wiggle at all......... so it would appear this issue isn’t present on all the heads.

If I get another set in the shop, it’ll def be the first thing I check.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Pro Comp BB Victor CNC heads [Re: fast68plymouth] #2558402
10/03/18 04:46 PM
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I can't see how you would be expected to test the fit of a rocker shaft when asked to prep a set of heads. I don't think Ive ever heard of any BB mopar head (ever) having trouble with that. Its one thing if they supplied rockers and wanted you to mock them up.


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Re: Pro Comp BB Victor CNC heads [Re: fast68plymouth] #2558416
10/03/18 04:56 PM
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Tony, it took me a few years and numerous sets of stage 6 heads coming through my shop before I had a reasonable handle on the number of oddball things that could be wrong with those heads.
So now when a set of those shows up I know to look at all kinds of things that really have nothing to do with what would be considered part of a normal prep job on virtually any other type of head. But I know these issues exist, so I look for them before I start any of the regular seat and guide work.

I’ve never seen any issues with the shaft saddle diameter before either, but now that I’m aware that this is a potential problem with these heads....... I’ll be sure to look for it in the future.


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Dealer for Comp Cams/Indy Heads
Re: Pro Comp BB Victor CNC heads [Re: fast68plymouth] #2558448
10/03/18 05:29 PM
10/03/18 05:29 PM
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Originally Posted By fast68plymouth
Tony, it took me a few years and numerous sets of stage 6 heads coming through my shop before I had a reasonable handle on the number of oddball things that could be wrong with those heads.
So now when a set of those shows up I know to look at all kinds of things that really have nothing to do with what would be considered part of a normal prep job on virtually any other type of head. But I know these issues exist, so I look for them before I start any of the regular seat and guide work.

I’ve never seen any issues with the shaft saddle diameter before either, but now that I’m aware that this is a potential problem with these heads....... I’ll be sure to look for it in the future.


I'm sure you will, knowing your attention to detail with everything you do. Seems like when all the corrections are done, you're probably not far off from a set of Eddy Victors, cost wise...


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Re: Pro Comp BB Victor CNC heads [Re: fast68plymouth] #2558538
10/03/18 07:43 PM
10/03/18 07:43 PM
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Did the person that put the rockers on the heads use the cheap non tapered thin shaft shims? is it possible to have spread the saddles & not crack them? I think so.

Last edited by csk; 10/03/18 07:45 PM.

1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5

Re: Pro Comp BB Victor CNC heads [Re: fast68plymouth] #2558550
10/03/18 08:14 PM
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Dwayne,
First of all my original post was not a dig at you. No names were named and the post was simply written to put the information out there that this is a potential problem with these heads. I measured the movement (approx 0.030) and documented that as well. The fact I mentioned that these had been to a head specialist was to highlight the fact to people that they really need to look at everything with the Chinese heads ( in fact all heads) and if things like this can slip past a professional, imagine what could happen with a less experience machinist or Joe average bolting these things on straight out of the box. If it's had a machine bit cut into it, then it needs to be checked.
My job is to take all the parts out of their boxes and make a running engine out of them, that's what I'm paid to do and at the end of the day if there is a problem with that engine then the buck stops with me. There is no point me telling a customer that his engine seized because the guy who bored out the cylinders used the wrong clearance,it's my responsibility to check his work.

As far as deleting my original post , well I can't see the logic in that decision and I don't know what the person who deleted it was hoping to accomplish by doing so. All they were really doing was removing information from this thread that could save another member here some hassles when it comes to making a decision on head choice or what to look for when inspecting these heads. Maybe it's some sort of sycophantic behavior , I don't know.

Re: Pro Comp BB Victor CNC heads [Re: CSK] #2558551
10/03/18 08:18 PM
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Originally Posted By csk
Did the person that put the rockers on the heads use the cheap non tapered thin shaft shims? is it possible to have spread the saddles & not crack them? I think so.


Rockers never went on the heads. Laid the bare shafts in to check fitment, alignment and pedestal heights.

Last edited by SS_Dodge; 10/03/18 08:31 PM.
Re: Pro Comp BB Victor CNC heads [Re: fast68plymouth] #2558653
10/03/18 11:18 PM
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I have no idea who deleted that post.

Also, I have no problem admitting that I didn’t test fit the shafts onto the heads......... but I won’t let that slip by again.

Like I said previously, my only defense is I’ve never come across that particular problem before.

I’m not sure what you’re planning on to remedy it, but I think some spacers from B3RE might be the least hassle.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Pro Comp BB Victor CNC heads [Re: fast68plymouth] #2558656
10/03/18 11:30 PM
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Originally Posted By fast68plymouth
(It would appear the post that I’m responding to here has been deleted.
Apparently the rocker shaft fit in the saddles is a bit loose, and the poster was unhappy that I didn’t catch that when prepping the heads........ (THAT IS THE WAY IT READ TO ME INITIALLT TOO.)


There isn’t really any excuse for not catching this issue,...(I DISAGREE...where does your responsibility end? are you expected to verify the headbolt locations too?...exhaust pattern? valve angle? (THE ENGINE BUILDER IS RESPONSIBLE IMO.)

To my recollection, I never had the rocker gear here that was going to be used on these heads to test fit any of it.


Another possible solution would be to contact Mike at B3RE to see about having some shaft relocation spacers made, with the lower arc of the spacer made to match your heads.
He’d likely instruct you that you need the spacers anyway, so it would just be a matter of whether he could match the arc of those saddles or not.

WE ARE MEN, and inherently not good at communicating but even though you were not named for some reason I THOUGHT you were the one the OP was referring too. I now see his explanation but he needs to acknowledge that the way he expressed what he did ...didn't come off well. I don't agree that it was deleted because that would give him a better chance to speak to what he meant.

Re: Pro Comp BB Victor CNC heads [Re: fast68plymouth] #2558660
10/03/18 11:36 PM
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Originally Posted By fast68plymouth


I’m not sure what you’re planning on to remedy it, but I think some spacers from B3RE might be the least hassle.


I had a friend offset machine round slip bushings from 6061 to help valvetrain geometry on my single shaft TD rockers...see if I can get a pic tomorrow. That particular system uses a .750" rocker shaft and is 'sleeved'-up to saddle size so it was an easy modification. Many ways to skin a cat.

Re: Pro Comp BB Victor CNC heads [Re: fast68plymouth] #2558663
10/03/18 11:40 PM
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Sean, it’s my thread........ it seemed like it kinda had to be me and these heads....... otherwise there would have likely been a new thread started about it.

It’s fine really........ there’s an issue with how the heads were made that hadn’t been brought to light in my posts...... and it’s info that should be known so people can make a more informed decision about what they’re buying.


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Dealer for Comp Cams/Indy Heads
Re: Pro Comp BB Victor CNC heads [Re: HardcoreB] #2558762
10/04/18 07:43 AM
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Originally Posted By HardcoreB


I DISAGREE...where does your responsibility end?


Well in my experience peoples responsibility tends to end just before the point of having to pay to replace or repair something they screwed up.
Don't take this the wrong way but there are people out in the world who echo what you have just said but it's a different story when their own stuff is involved.
The problem with what you said about responsibility is that it gives people the green light to put the absolute minimum effort into something and then use that excuse as a get out of jail free card when there is a problem.
Example:
Imaging you brought me a carb you had just purchased. You tell me to go through it and fix anything it needs. I give it a wash, check the jets , replace the power valve and gaskets. You stick it on your engine but it runs a little rough but not too bad. You take it for a drive anyway but it starts to backfire up through the carb, as you try to get home it backfires so bad that the air filter catches fire and you get some heat blisters in the paint on your bonnet. After another inspection of the carb it's found that the emulsion tubes weren't machined correctly and that was the cause of the backfire and damage. So you come back to me as your bonnet sits there still smoking and ask me why I didn't see it or fix it especially when you told me to "fix anything".
I say to you that it's a major operation to get to those sealed in emulsion tubes, also I've never seen that problem before. I then shrug my shoulders and say "hey man... where dose my responsibility end?" and promptly show you the door.
I'm sure you'd be a very happy camper after that...

Re: Pro Comp BB Victor CNC heads [Re: fast68plymouth] #2558765
10/04/18 08:09 AM
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Originally Posted By fast68plymouth
I have no idea who deleted that post.

Also, I have no problem admitting that I didn’t test fit the shafts onto the heads......... but I won’t let that slip by again.

Like I said previously, my only defense is I’ve never come across that particular problem before.

I’m not sure what you’re planning on to remedy it, but I think some spacers from B3RE might be the least hassle.


No probs Dwayne, all good.
I'm of the opinion now that these have not been cut as semi circular. I think they have a radius at each end with a slight flat section in the center. If this was one machine doing this and it ran for a week of so before it was detected , then these will pop up here and there. Some may very well be running on engines as we speak, undetected.
I'm thinking, mill the stands off and Max Wedge them.

Re: Pro Comp BB Victor CNC heads [Re: SS_Dodge] #2558778
10/04/18 09:22 AM
10/04/18 09:22 AM
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Originally Posted By SS_Dodge
I'm thinking, mill the stands off and Max Wedge them.

I think that would include drilling the 1/3/5 holes deeper and installing Heli-coils so they use longer studs like the 2/4 have. This approach makes the most sense to me, too.

EDIT: I see Hughes says they use .75" inserts when they do this mod, but mine have slightly longer .9(+?) inserts which I special-ordered from an online tool supplier (McMaster-Carr, maybe?).

Also, I ordered longer ARP studs directly from ARP since the size I wanted weren't listed on any typical car parts vendor's web sites. IIRC, the "long" studs are usually 2.75" and I ordered either 3.0" or 3.25"... can't recall exactly at the moment.

Regardless, figured I'd mention parts you may want or need if you follow through on milling off the original rocker pedestals.

Last edited by BradH; 10/04/18 02:20 PM.
Re: Pro Comp BB Victor CNC heads [Re: SS_Dodge] #2558797
10/04/18 10:11 AM
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Originally Posted By SS_Dodge
Originally Posted By HardcoreB


I DISAGREE...where does your responsibility end?


Well in my experience peoples responsibility tends to end just before the point of having to pay to replace or repair something they screwed up. (It isn't a by mistake you found Dwayne... he doesn't have a reputation for making excuses for anything he fell short of doing. AND FWIW as pointed out here it's a 'cheap/undercutting' copycat of another head already manufactured. )
Don't take this the wrong way but there are people out in the world who echo what you have just said but it's a different story when their own stuff is involved. (Thank you ...I don't fall into that category)
The problem with what you said about responsibility is that it gives people the green light to put the absolute minimum effort into something and then use that excuse as a get out of jail free card when there is a problem.(I understand your point and it is AS BROAD as saying "fix anything that is wrong" especially when you didn't give him the indented rocker gear which AS THE BUILDER you'd catch this when you check geometry and fastener engagement and etc...AGAIN where does it end 'fix anything' seats LOOK to not have enough press and with that roller cam your running I took it upon myself to put copper seats in properly because I also think you'll need Ti valves. "So I fixed 2 issues at the same time" In one of your replies you even said " I AM THE RESPONSIBLE PARTY AS THE END BUILDER" how would you even charge for 'fix anything' NOONE would even want to pay for that especially on a unknown, AGAIN cheap copycat, head. That is really especially specific and has direct reasoning as to why fundamentally if you WERE disappointed, you'd been wrong IMO. )
Example:
Imaging you brought me a carb you had just purchased. You tell me to go through it and fix anything it needs. I give it a wash, check the jets , replace the power valve and gaskets. You stick it on your engine but it runs a little rough but not too bad. (OK so I got a carb from you put it on and it runs bad but I use it anyway?) You take it for a drive anyway but it starts to backfire up through the carb, as you try to get home it backfires so bad that the air filter catches fire and you get some heat blisters in the paint on your bonnet. After another inspection of the carb it's found that the emulsion tubes weren't machined correctly and that was the cause of the backfire and damage. So you come back to me as your bonnet sits there still smoking and ask me why I didn't see it or fix it especially when you told me to "fix anything".( well now Thumper and a lot of carb builders actually TEST the carb they go-thru or build)
I say to you that it's a major operation to get to those sealed in emulsion tubes, also I've never seen that problem before. I then shrug my shoulders and say "hey man... where dose my responsibility end?" and promptly show you the door.
I'm sure you'd be a very happy camper after that...
(I don't feel this is a representative comparison of the current situation. )



Re: Pro Comp BB Victor CNC heads [Re: HardcoreB] #2558803
10/04/18 10:23 AM
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SS Dodge....I appreciate the respectful exchange here and I felt when you added in your reply that as the builder you are ultimately responsible, it was given a different meaning. But for some reason I feel in your follow-up that there is still some disappointment in that Dwayne didn't catch this? so I will respectfully disagree. this thread has many OTHER reasons to remain in-place.

Re: Pro Comp BB Victor CNC heads [Re: HardcoreB] #2559289
10/05/18 09:56 AM
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Originally Posted By HardcoreB
Originally Posted By SS_Dodge
Originally Posted By HardcoreB


I DISAGREE...where does your responsibility end?


Well in my experience peoples responsibility tends to end just before the point of having to pay to replace or repair something they screwed up. (It isn't a by mistake you found Dwayne... he doesn't have a reputation for making excuses for anything he fell short of doing. AND FWIW as pointed out here it's a 'cheap/undercutting' copycat of another head already manufactured. )
Don't take this the wrong way but there are people out in the world who echo what you have just said but it's a different story when their own stuff is involved. (Thank you ...I don't fall into that category)
The problem with what you said about responsibility is that it gives people the green light to put the absolute minimum effort into something and then use that excuse as a get out of jail free card when there is a problem.(I understand your point and it is AS BROAD as saying "fix anything that is wrong" especially when you didn't give him the indented rocker gear which AS THE BUILDER you'd catch this when you check geometry and fastener engagement and etc...AGAIN where does it end 'fix anything' seats LOOK to not have enough press and with that roller cam your running I took it upon myself to put copper seats in properly because I also think you'll need Ti valves. "So I fixed 2 issues at the same time" In one of your replies you even said " I AM THE RESPONSIBLE PARTY AS THE END BUILDER" how would you even charge for 'fix anything' NOONE would even want to pay for that especially on a unknown, AGAIN cheap copycat, head. That is really especially specific and has direct reasoning as to why fundamentally if you WERE disappointed, you'd been wrong IMO. )
Example:
Imaging you brought me a carb you had just purchased. You tell me to go through it and fix anything it needs. I give it a wash, check the jets , replace the power valve and gaskets. You stick it on your engine but it runs a little rough but not too bad. (OK so I got a carb from you put it on and it runs bad but I use it anyway?) You take it for a drive anyway but it starts to backfire up through the carb, as you try to get home it backfires so bad that the air filter catches fire and you get some heat blisters in the paint on your bonnet. After another inspection of the carb it's found that the emulsion tubes weren't machined correctly and that was the cause of the backfire and damage. So you come back to me as your bonnet sits there still smoking and ask me why I didn't see it or fix it especially when you told me to "fix anything".( well now Thumper and a lot of carb builders actually TEST the carb they go-thru or build)
I say to you that it's a major operation to get to those sealed in emulsion tubes, also I've never seen that problem before. I then shrug my shoulders and say "hey man... where dose my responsibility end?" and promptly show you the door.
I'm sure you'd be a very happy camper after that...
(I don't feel this is a representative comparison of the current situation. )




Seriously, you commented out a hypothetical situation? haha

Re: Pro Comp BB Victor CNC heads [Re: SS_Dodge] #2559291
10/05/18 10:08 AM
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Yes, because you created one to justify your disappointment insinuating there was an unnecessary oversight based on your words "fix anything wrong". Honestly, I'm ok disagreeing with you. We have both said our pieces. peace

Re: Pro Comp BB Victor CNC heads [Re: HardcoreB] #2559343
10/05/18 12:12 PM
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You missed the point. I created that hypothetical situation to simply show the ambiguity of your argument. I'm not sure why you would comment it out, it's a story not a questionnaire..

Anyway, You can disagree if you like. But I think your letting your personal friendship, feelings or whatever cloud your judgement. He's your friend and you feel the need to back him up... I get it.
Dwayne's a professional, he knows what he's capable of catching and what he's not capable of. He also knows the standard of workmanship and professionalism that he holds himself to.
I'm a professional as well, I do my best to hold myself to a high standard of workmanship and I'm the first to kick myself in the ass if I feel I'm not meeting those standards. I also expect the same high standards from those I engage to do work for me.
Now if you think that I'm being too high in my expectations, then I guess that's your problem because you don't have to carry the responsibilities that I do and you don't have to solve the problems that I have to deal with.
Walk a mile in my shoes, then you might be able to offer some worthwhile opinions.
The last thing I will say on the subject is this. You asked where the responsibility should end for inspecting a set of heads. This is basically what I do with brand new untested heads:

Visual inspection for flaws, shipping damage, etc.
Check finish of machined surface's and straightness.
Check all the machined holes and threaded holes.
Put on a head gasket, intake and exhaust gaskets to check chamber sealing and alignment of stud holes, ports etc.
Straight edge along the valves to check alignment and heights.
Drop in a rocker shaft to check fit, height of pedestal stands and alignment with valves.
Check spring bases in head.
Guide clearance.
Seat inspection.
I may do other checks if they have been CNC'd of are known to have common quality issues.
If in doubt...call the customer....
You can get a pretty good idea if the heads are usable after this. You don't need to go crazy and put them through an MRI smile
It does not take long to do all this. It's not hard to do and I don't think it is beyond the ability of anyone who works on cylinder heads and has a high professional standard.
This is all done before any machine work is carried out, because if anything is wrong then the heads can be exchanged under warranty. Once they get cut you can't send them back.
It's also really important that this stuff is right if you are then going to send parts interstate or in this case overseas.

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