What cams are these? [MERGED] Cam Identification ID

2gAWDTalon · Jul 16, 2006

ALL CAM IDENTIFICATION QUESTIONS MERGED HERE.

Cams are not easy to identify for obvious reasons...but if you think it's worth posting pics along with measurements and specs of the cams you're using, give it a shot.

I have these cams, they came in a head I bought. The guy said they were aftermarket and he did not know what kind... does anyone reconize these markings? Thank you very much for any help you can give, I want to sell them but I do not know what they are.

JEFFREYCASTGSX · Jan 17, 2010

They would be oem, theres a different letter for each different cam, but its oem.

tonyt_harris · Jan 17, 2010

Thanks.

6BoltSleeper · Jan 21, 2010

First off, thanks for looking. I bought a 1995 Eclipse RS, that has a 6 bolt swap. I'm in the process of building it and getting everything right on it. There are many other mods on it and if you ask I will tell you. My problem is I can't figure out what cams it is running. There is nothing wrong with them, but it is something I would like to know. The guy I bought the car from says they are "aftermarket" and I'm pretty sure they are. I've searched literally for days and I can't find anything, except when I type in 4604A 4G63, I get this site: Bienvenidos a AGM

I've included pics of the cams, and the only numbers anywhere on them are stamped as follows: Intake- 4604A, Exhaust- 4605A

Someone one chime in and let me know what you think. Any help is greatly appreciated, Thanks

ilco187 · Jan 21, 2010

are you sure its not a 420a turbo, besides that i dont see any pics.

6BoltSleeper · Jan 21, 2010

yes I'm sure it's a 4g63, and sorry about the pics, just got them resized and up, thanks

ilco187 · Jan 21, 2010

i never heard of that company or whatever they are, to me they look like a small private owed type of business, if you still have they guy's number or anyway to contact him and ask were the hell did you buy these cams or what brand and such.

6BoltSleeper · Jan 21, 2010

Believe me I have. He says he bought the engine out of a laser, and the owner of the laser performed the swaps, mods, etc. I have no way of getting in touch with the laser owner though, He thinks they are 272 Intake, 264 Exhaust, though there is no way to know for sure without measuring them I suppose.

whe3ls · Jan 21, 2010

rs has a 420a engine. are you sure that its not a gst?

6BoltSleeper · Jan 21, 2010

yes, I'm 100% sure that this engine is a 1G 4G63T, the engine mounts were relocated and everything. A speed shop swapped the (not original) 6 bolt from the laser into the 95 RS, it must have been a pain but they did it. Car ran great, rode in it several times, then blew headgasket and sit for awhile,then I bought it, water in cylinders made a spot, so now I'm rebuilding the engine.

whe3ls · Jan 21, 2010

cool, any pictures?

6BoltSleeper · Jan 21, 2010

I can take some later today of the trans and all still in the car and the engine mounts but the block is at the machine shop getting bored. I'll post them later today.

JusMX141 · Jan 21, 2010

When the engine is in the car, what side of the car are the belts on (driver / passenger)?

jjrock5 · Jan 21, 2010

^^ I think he still thinks you have a 420a. Im not surprised, not many do all that modifying.

6BoltSleeper · Jan 21, 2010

The belts are on the driver side, it's a 4G63, here are some pics of the engine bay with the trans in and a few engine parts, notice the 6 bolt crankshaft.

JusMX141 · Jan 21, 2010

You're right about that, someone definitely did a ton of work to get that engine in the car.

I wasn't doubting that it was swapped- I just was curious as to how the engine was wedged in the car, and how cleanly the swap was done.

6BoltSleeper · Jan 21, 2010

It's definitely not the cleanest swap I've ever seen, but everything seems aligned correctly and the car functioned very well. Anybody have a clue about these cams? I'm ready to get this thing rolling again. Also, I have a 90 turbo m/t ecu, and 2g OBD2 data ports. It's very confusing as to what I can actually use to tune this thing

whe3ls · Jan 21, 2010

to make it easier on your self id swap a 2g turbo harness into it

6BoltSleeper · Jan 21, 2010

I can't begin to think of what all that would involve. I'm not sure I'm at that level yet. Wouldn't I have to swap my ecu, possibly CAS, and stuff if I did that?

Delta Cam · Jan 21, 2010

pm me I will help you.

whe3ls · Jan 21, 2010

you have to swap the ecu, not sure about the cas.

6BoltSleeper · Jan 22, 2010

I'll probably just leave the wiring the way it is for now, and use an afc, wideband, chip, and logger to tune. Thanks though

brtmsx · Feb 8, 2010

Alright, my buddy Zach bought a car from a guy in South Carolina. We knew it had aftermarket cams, but didnt know which ones. At the time of purchase we asked the owner what kind they were, he couldnt answer our question. He said and I quote, "theyre supposed to be a custom grind with the drive-ability of a 272 and top end similar to a 280"

That being said, the car did lump a bit at idle (~1000). About the same as my Comp 101300's and I'll venture to say they pulled about the same (if not a little bit harder) up top, all the way to the 8500rpm rev limit.

Recently we pulled the head off of his car to replace the o.e. fiber headgasket with a mitsu mls headgasket. While we had it off we decided to take a look at the cams, and were both completely stumped about what kind they are. We were kind of worried they may be regrinds, but are not sure at all. (not bashing regrinds, but everybody has heard some of the horror stories involving them)

So that leads us here, the only similar identifying marks on both of the cams is a C and A cast into both of the camshafts, and a MJ marked in yellow. Other than that... well, I'll just let the pictures speak for themselves.

Yellow MJ (on both cams)