MechMan1

iTrader: (5)

I am looking to buy the LS3 Titan 3 Cam Motion cam but not sure which core to order it in. Anyone familiar with their cores and can add their input to the big differences. Thank you

JoeNova

Why do people never call manufacturers and ask them? Do they think random people on the internet will know more than they do?

G Atsma

Right! The Cam Motion site clearly explains the differences between metals used.

ddnspider

iTrader: (26)

I did the 5150 core on my Titan 2. No issues, pulls hard to 7k.

hiltsy855

iTrader: (35)

I've used the 8660 & 8620 cores and see no difference in wear. The 8660 is only a $25 upcharge over the 5150....

99 Black Bird T/A

iTrader: (4)

Check the Cam Motion website for details or call.

Cam Motion Cam Core Choices Explained by Cam Motion



My experience has been using the standard 5150 Induction Hardened Chromium Camshaft core for the dozen or so cams I've had over the last 30 years in various engines. That's the same quality core GM uses but nothing fancy. None of the cores have had an issue. The Comp Cams ground XER ran for 130,000 miles + no issues.

If I did a hardcore engine build with high spring pressures, I'd move up in cam core quality. Contact Cam Motion brother vendor for best results for your planned application.

Given Cam Motion prices are reasonable, I'd go with whatever core they suggest. Later if you want to sell your used cam one of the harder cores might look nicer than a used 5150.

• 5150 - $389.00
• 8660 - $419.00
• 8620 - $449.00

CAMMOTION PERF

Hello MechMan1,

Thank you for you for choosing Cam Motion!

Our 5150 alloy cams do a great job in most LS applications. And, it is a great choice for our Titan Series camshafts. With that said, we do offer stronger, superior alloys. Like the 5150 steel alloy, our 8660 billet steel alloy cams are induction hardened, but the 8660 is a superior alloy (IE more expensive). So, that is why it is $30 more. Our 8620 billet steel alloy camshafts go through a different hardening process called carburizing. During this process we actually embed carbon into the wear surfaces of the camshaft. Carburizing makes for a very durable wear surface that is superior to 5150 and 8660. This camshaft's extra cost mostly comes from the more complex manufacturing process.

So, if you are budget minded, you can be confident in the 5150 steel alloy. It is very similar to what comes in LS engines from the factory and will wear very well and have a long life. If you don't mind spending a few extra bucks for the best, we can make it for you in 8620 billet steel alloy.

~Steven

wannafbody

iTrader: (2)

Seeing that stock cams can last for a couple hundred thousand miles in a street car, it seems the 8620 cams are overkill for the majority of builds.

CamOnlyJabroni

I couldn’t be happier with my LLSR from Cam Motion!

68Formula

With the higher lift of aftermarket cams comes faster ramps (even with their longer duration) and more spring force. Both of which contribute to signficantly higher hertzian stress on the cam lobes.

NAVYBLUE210

Nice!
Had to look uo Hertzian Stress,
I was completely unfamiliar with the term.

SkWiDsTyLe321

iTrader: (1)

well geez i'm just a simple guy not too knowledgeable in engine internals, but just want a good 55-70 midrange tq cam in my ls2! sound not an issue (don't care if it's super quiet or super choppy) but what's a good cam to achieve those #'s and retain decent to slightly above average street/daily driveability? i'm literally ready to purchase one & have it installed like in a week or 2..... any suggestions? this will be with stock heads & everything else stock except for true dual exhaust with no cats. oh and the cam is going in an ls2 out of an 07' cts-v (motor then going into my 02' auto trans am with 3600 stall).

Darth_V8r

iTrader: (4)

Cam motion titan 4, Ed Curtis street sweeper HT, tsp 228, tick Sns.

All four well respected cams that will put you right where you want to be. Usually they are used in a 5.7, so in a ls2, they will be a bit torquier and run great even off idle.