Cam Motion Cores
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#3
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64post (07-19-2019)
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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
Last edited by 99 Black Bird T/A; 07-18-2019 at 11:19 AM.
#7
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
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NAVYBLUE210 (08-13-2019)
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#10
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.
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68Formula (03-13-2020)
#12
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).
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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.
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.
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