408 LS Stroker NA Cam choice?? Which one? - LS1TECH - Camaro and Firebird Forum Discussion

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408 LS Stroker NA Cam choice?? Which one?

 
Old 05-16-2016, 05:53 PM
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Default 408 LS Stroker NA Cam choice?? Which one?

So 2 cam profiles have been recommended by very well know cam profilers ;-) not going to name names! BUT the profiles are IMO alot different yet both seem to think they will make 500+ rwhp an be very drivable.

Specs:

236/248 .620/.603 114+3. Said power would come in early too... Hmmm
OR
XFI 230/236 .612/.6xx 114+0. Seems power will def come in early on this IMO

What would you choose?!
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Old 05-16-2016, 05:59 PM
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Whats the rest of the build and what heads?
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Old 05-16-2016, 06:05 PM
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L92 heads hand port & polish exhaust ports only. Livernoius .660 spring setup with titainum retainers. But stock valves

Fast102 not ported
Ported ls2 throttle body
52Lb injectors
T56 ctsv 6 speed tranny w/ monster stage 2 setup

06 cts-v stock rear end for now
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Old 05-16-2016, 06:40 PM
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The first choice has 14 degrees of overlap. I would not want this in a street car/6 speed. The second choice has 5 degrees of overlap. If it were me either go with the second choice or have something spec'd in the 8-10 degrees of overlap range. 14 degrees would be a little much for me especially in a 6 speed car.
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Old 05-16-2016, 06:48 PM
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Originally Posted by josh4ku
The first choice has 14 degrees of overlap. I would not want this in a street car/6 speed. The second choice has 5 degrees of overlap. If it were me either go with the second choice or have something spec'd in the 8-10 degrees of overlap range. 14 degrees would be a little much for me especially in a 6 speed car.
So now i gotta 3rd choice! So hard to get the right cam...
Thanks for your input josh
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Old 05-16-2016, 06:59 PM
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Out of those 2 cams listed I'd do the 1st one for sure. I have 15 degrees overlap on my cam and with 4.10s and a 6-speed it drives just fine. What's your compression?
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Old 05-16-2016, 07:05 PM
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Originally Posted by HCI2000SS
Out of those 2 cams listed I'd do the 1st one for sure. I have 15 degrees overlap on my cam and with 4.10s and a 6-speed it drives just fine. What's your compression?
11.5 to 1
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Old 05-16-2016, 07:07 PM
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Originally Posted by HCI2000SS
Out of those 2 cams listed I'd do the 1st one for sure. I have 15 degrees overlap on my cam and with 4.10s and a 6-speed it drives just fine. What's your compression?
What kind of power did u put down?
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Old 05-16-2016, 07:09 PM
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That's exactly my compression as well. Just my opinion but you have some nice flowing heads with a great intake and good compression, and having 408 cubes on top of it the setup would be very suitable to a fairly aggressive cam like the first one.
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Old 05-16-2016, 07:13 PM
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Originally Posted by c4love View Post
What kind of power did u put down?
Haven't had it on a dyno with the new mods, but I estimate it around 450 rwhp n/a
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Old 05-16-2016, 07:58 PM
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Originally Posted by HCI2000SS
Haven't had it on a dyno with the new mods, but I estimate it around 450 rwhp n/a
Oh man if i dont get 500 im gonna be disappointed! Lol. Only because my stock bottom end ls2 heads cam car is putting down 421/413 now NA.

So if this 408 dont drop 500 ill be a bit upset although dynos I know are ONLY numbers but still im baseline comparing with what i have now an fell going to 408 with better heads an cam should produce 80 more hp i would hope....
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Old 05-16-2016, 08:03 PM
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Originally Posted by c4love View Post
Oh man if i dont get 500 im gonna be disappointed! Lol. Only because my stock bottom end ls2 heads cam car is putting down 421/413 now NA.

So if this 408 dont drop 500 ill be a bit upset although dynos I know are ONLY numbers but still im baseline comparing with what i have now an fell going to 408 with better heads an cam should produce 80 more hp i would hope....
What HCI do you currently have on LS2?
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Old 05-16-2016, 08:12 PM
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Originally Posted by HCI2000SS
What HCI do you currently have on LS2?
Hand ported 243s
Fast 102 not ported
Howards cam. 224/230 609/604 lsa112 108 center
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Old 05-16-2016, 08:14 PM
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Originally Posted by c4love
Hand ported 243s
Fast 102 not ported
Howards cam. 224/230 609/604 lsa112 108 center
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Old 05-16-2016, 08:16 PM
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Originally Posted by c4love View Post
Hand ported 243s
Fast 102 not ported
Howards cam. 224/230 609/604 lsa112 108 center
Gotcha. I don't know man a 80 hp jump might be a little generous lol. I'd go back to the same dyno to get a fair comparison. Don't see to many people running Howards cams on these cars. That's what I'm running as well, and really like it
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Old 05-16-2016, 08:16 PM
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Run good now i can pull on stock Ls3s all day long... An run my AC!! Lol but i want more power its getting boring.
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Old 05-17-2016, 01:35 PM
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Bottom one has the duration suitable for a 346. Its not big enough for a stroker in my humble opinion.
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Old 05-17-2016, 01:38 PM
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14 degrees of overlap ain't nothing for a 408ci. I'd choose the first one. I agree the second cam is not big enough for a 408ci.
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Old 05-17-2016, 01:46 PM
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i have a 244/254 .638 .638 113 lsa in my 416. and I Could have gone bigger. honestly. car drives like stock
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Old 05-17-2016, 04:32 PM
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Originally Posted by Mavn View Post
i have a 244/254 .638 .638 113 lsa in my 416. and I Could have gone bigger. honestly. car drives like stock
6 speed or auto?
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