mystery cam?
The whole time since then the car loped something ridiculous...but he has ran on stock valvesprings the whole time with no issues. His car seriously sounded like it had more lope than my 230/238 does. It got better when he replaced some pushrods which were too long with some shorter ones, but it still didn't sound like any other stock ls1 I've heard.
The cam looks good with no abnormal wear or anything, but it does not have anything stamped or engraved on it anywhere that I could find with a quick once over.
Is there any way to get some clue what this could be without sending it off to be cam doctored? If it is indeed safe to run with stock or ls6 springs for whatever reason, I would like to put it in my Silverado.
Last edited by thunderstruck507; Jan 9, 2015 at 04:27 PM.
Don't want to waste that much dicking around with it if it's really stock and there is some other issue making the car idle like it's cammed.
Is there some way I could get a ballpark duration estimate or anything?
Is it safe to say its probably not a gm stock cam?
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Hopefully this is something mild enough I can toss it in my truck with a ls2 chain and some ls6 springs for a slight power bump and an idle that doesn't sound like a boat.
I tried searching for threads on what cam could be ran with stock springs and of course found nothing that way either.
I find it to be very odd that there are no other part numbers or markings and more so that the car ran so long on stock springs without valve float or other issues. Especially considering the fact the car had a noticeable lope to it.
Guess we won't know until I can get it sent off. If anyone knows of any leads on old school manufacturers who might have had something let me know.
A picture of yours would be helpful. All the other stock cams I've seen had a series of numbers on one end.
Saw a rep from Crane who used to post on here mention they had a website where everyone could enter custom cam specs to order, could be what happened here.
Going to email Crane on Monday and look for a place to send it off.
There is an old school Edelbrock cam with .540" lift, 230/237 on a 110+4. Would certainly explain a lot...high overlap, low lift, stock tune...would make for a car that sounds nasty but won't idle or run for ****. Part number is 2216 though so that doesn't match the "121" or "00" I'm seeing.
Anyone ever seen an Edelbrock cam in person to see where the part numbers are and how they are shown? Would certainly explain the "E" cast into the core.
The cam is basically a copy of the GM Hot Cam. I don't think it's a real one due to the lack of GM markings.
218/229 .521/.523 on a 112 lsa










