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Old 09-02-2010, 12:50 PM
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Need help refferencing a Manley Camshaft

A few weeks ago I took the heads and crank of my dad's 1967 Chevy-II 327 to the machine shop for restoration. The heads are finally being fitted with hardened seats along with new guides, studs and just about everything. I've come to find out that the distributor gear of my cam has been worn from improper shimming. To me this is almost the worst thing that could happen because this cam is the secret behind the most notorious engine known to this entire area. A secret that my father didn't have the chance to pass on to even me before his untimely death. To get to the point, there is no other cam set up that I want to use. If I can't use this cam then I want to find an exact duplicate. No compromise. So what I'm looking to do is find every spec of information I can on this cam so that I can reference it when finding a replacement. Here is all the info I have to use for Identification:

On the front end stamped: MANLEY 17415

On the rear end (distributor end) stamped: 17415 1247

Orange (maybe red) stripes painted in between distributor gear and first lobe as well as same color stripe before the first lobe from opposite end.

This cam was matched up to hydraulic lifters

As indicated above it seams as though the cam was made by or at least sold by MANLEY I'm assuming in the late 1970s at least that's when the engine was last apart to this degree.

Please share with me any info you may have on this cam. Every one tells me that this was the best sounding engine on the street and I really don't want to lose that sound by changing anything and I can't finish rebuilding the heads until I know what to use to match up to the cam. Machinist won't touch them till I know what cam I plan on using.

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Old 09-02-2010, 01:21 PM
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Send the cam to a custom grinder like Custom Cams or Bullet, or Isky. They can reproduce the cam exactly for about the same price as a flat tappet racing cam.
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Old 09-02-2010, 02:06 PM
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Hi,
It's a Manley product contact them.
Rich

Manley Performance Products, Inc.
1960 Swarthmore Avenue
Lakewood, NJ 08701
Phone (732) 905-3366
Fax (732) 905-3010
East Coast Manufacturing Plant
Sales Hours 9:00 AM - 5:30 PM EST
(800) 526-1362
sales@manleyperformance.com
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Old 09-02-2010, 02:35 PM
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Quote:
Originally Posted by waterboy4413
A To get to the point, there is no other cam set up that I want to use. If I can't use this cam then I want to find an exact duplicate. No compromise. So what I'm looking to do is find every spec of information I can on this cam so that I can reference it when finding a replacement. Here is all the info I have to use for Identification:
On the front end stamped: MANLEY 17415
On the rear end (distributor end) stamped: 17415 1247
Orange (maybe red) stripes painted in between distributor gear and first lobe as well as same color stripe before the first lobe from opposite end.
This cam was matched up to hydraulic lifters
I'd like to know what it is also. Hope you post when you find out. I understand how you feel about this build.
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Old 09-02-2010, 04:24 PM
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Quote:
Originally Posted by lmsport
Send the cam to a custom grinder like Custom Cams or Bullet, or Isky. They can reproduce the cam exactly for about the same price as a flat tappet racing cam.
This is probably going to be your only chance of getting a replacement, and the easiest way to do it also. Add Mike Jones Camshafts and Jay Allen's Camshaft Innovations to that list.

I realize you didn't ask, but any of the mentioned companies can set you up with a modern cam that will make more power, just because of technological advancement in cam design and manufacturing since the cam you have was originally designed.
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Old 09-03-2010, 10:08 AM
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I realize you didn't ask, but any of the mentioned companies can set you up with a modern cam that will make more power, just because of technological advancement in cam design and manufacturing since the cam you have was originally designed.[/QUOTE]



I would like to thank everyone for replying so quickly with such useful advice as for the quote above. This rebuild isn't about increasing power by modern advancement. It is purely nostalgic. Every part of this car and engine is exactly restored to the way my father built it up in 1977. I realize I could have gone a long way in making it look the same with a modern reproduction, but this car wasn't all about its look and performance. This thing was notorious for having a sound like none other. A sound that I have yet to find duplicatable. Now that I know what the secret behind the cam is I know why.

I still intend on finding more information on the history and specs of this cam so I will contact Manley to see if any record is still left on their product line from back in the 70s.
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Old 09-03-2010, 11:53 AM
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Just like it was.

[/QUOTE]
This rebuild isn't about increasing power by modern advancement. It is purely nostalgic. Every part of this car and engine is exactly restored to the way my father built it up in 1977. [/QUOTE]

Hey again,
I looked through my bookmarks last night, and "saved mail", and couldn't find the guys in Pennsylvania that grind cams, but I'm sure they can install your cam in their cam lathe or some sort of device, turn it and read the specs. If we can do it I know they can. We installed a degree wheel on a dummy block set up years back. Mounted a dial indicator for both intake and ex. Installed lifters on the lobes we read. Turned a degree and took notes. First time we did it, it took all evening..
We did read several in and ex lobes because we assumed wear would throw us off. And they were not all exactly the same but close. We gave them all the separate readings. Emailed them the high average on the specs and called, and they emailed us that afternoon with the grind number. They had it on file.

OK so when we got it back we took the biggest readings we got from every aspect of each lobe(same specs we sent them)... Anything less in another lobe had to be wear. We high averaged all 8 in and all 8 ex. And it read almost exactly like the cam card. We were .002 or .003 short with our average.

We did it for a similar reason . If I can't find these guys I'm sure that some of the shops you were refferred to here, are just as good or better.

If all else fails, you can write Ron Iskendarian at his newsletter and tell him why you have to have it. He's a real normal every day guy who has taken time in the past to do just such things.
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Old 09-03-2010, 02:23 PM
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Most of the Manley cams were generic or factory muscle car copies.

You can identify the specs of your manley cam by installing it in a short blocka nd degreeing it to determone the open close specs @.050" .006"( hyd) and the max lobe lift of the intake and exhaust as well as the LSA.

You canalso measure the cam specs using a CaM Doctor. many good engine builders have this cam spec measureing device.

As I said the cam is most likely generic meaning a cam grinder that produces these common generic cams will have same masters to reproduce and new one for you.

Just measuring the intake and exhaust lobe lift using a dial caliper or mic across the major and minor diameters of the lobe can usually ID the cam.

measure and post the in/ex lobe lift.
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Old 09-03-2010, 03:42 PM
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Please tell me u checked the cam timing before u pulled it out.
There is another way to time cam that a lot of peple still use.
If engine sounded just "different" maybe he timed cam "straight up".
This is not just lining up timing marks.
A little more involved than that....
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