LT1-LT4 Modifications 1993-97 Gen II Small Block V8

396 Stroker SR build FTMFW!

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Old Apr 5, 2013 | 08:55 PM
  #41  
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Originally Posted by BoostedDSM
I don't mind, email it to me Tk49201@yahoo.com
Email sent.
Thnks
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Old Apr 5, 2013 | 09:12 PM
  #42  
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Glad you like the car Kris! Should be nasty on the street!
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Old Apr 5, 2013 | 09:34 PM
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Old Apr 5, 2013 | 09:37 PM
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if you are ready for a set of real heads, and have a few grand kicking around, i have may have some AFR227's i would be willing to part with. lol! that is very decent power, enjoy the ride!
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Old Apr 5, 2013 | 10:33 PM
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Does that curve look like weak valve train or poor flowing heads?
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Old Apr 6, 2013 | 01:11 AM
  #46  
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Looks like a wide LSA cam with small heads. If you're going with small heads on a 396 and want it to perform up top it needs more overlap. The wide lsa is making table top torque curve, just not much of it. I'd cam it up more like a 248/256 on a 106, ICL somewhere around 104.

Also not sure how you collapsed a Comp 875 lifter??
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Old Apr 6, 2013 | 01:47 AM
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Looking at that graph, if you have good valvetrain components I'd run that bitch out all the way to 7000rpm on a dyno to see what the curve does. You aren't losing all that much power at your peak.

Originally Posted by Puck
What runner CCs are your ported LT4s though? His heads are only 206cc, that' small for a 396.
According to LPE, 202/80.
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Old Apr 6, 2013 | 07:28 AM
  #48  
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Originally Posted by Wicked94Z
Looks like a wide LSA cam with small heads. If you're going with small heads on a 396 and want it to perform up top it needs more overlap. The wide lsa is making table top torque curve, just not much of it. I'd cam it up more like a 248/256 on a 106, ICL somewhere around 104......
^THIS^
It's 40+ year old knowlege - more overlap crutches limited head flow.
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Old Apr 6, 2013 | 07:40 AM
  #49  
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Originally Posted by Wicked94Z
Looks like a wide LSA cam with small heads. If you're going with small heads on a 396 and want it to perform up top it needs more overlap. The wide lsa is making table top torque curve, just not much of it. I'd cam it up more like a 248/256 on a 106, ICL somewhere around 104.

Also not sure how you collapsed a Comp 875 lifter??
The ICL is 109

Originally Posted by bowtienut
^THIS^
It's 40+ year old knowlege - more overlap crutches limited head flow.
Ed Curtis cut this cam with a full spec sheet on hand. I left it in his hands. Hmm...
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Old Apr 6, 2013 | 07:40 AM
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Originally Posted by SS RRR
Looking at that graph, if you have good valvetrain components I'd run that bitch out all the way to 7000rpm on a dyno to see what the curve does. You aren't losing all that much power at your peak.


According to LPE, 202/80.
I may have him raise my limiter and see how it does on the street
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Old Apr 6, 2013 | 09:39 AM
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Originally Posted by Wicked94Z
Looks like a wide LSA cam with small heads. If you're going with small heads on a 396 and want it to perform up top it needs more overlap. The wide lsa is making table top torque curve, just not much of it
Huh... weird. My LSA is 112 with small heads and...:



Originally Posted by Green3spd
I may have him raise my limiter and see how it does on the street
No reason you should have a SR if you can't at least rev to 7K.
What kind of exhaust/headers are you running?

Last edited by SS RRR; Apr 6, 2013 at 09:47 AM.
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Old Apr 6, 2013 | 11:33 AM
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He has a hydraulic roller. Lets see the numbers on the y-axis SS RRR
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Old Apr 6, 2013 | 01:04 PM
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Hooker 1-5/8 LT's/ORY/Magnaflow CB. With cutout. This was Thru cutout.

And Yes, this is a HR cam
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Old Apr 6, 2013 | 01:46 PM
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After looking at it, the curves are fairly close to my graph the way they behave. The difference being my graph is portrait so everything is more dramatic.
Originally Posted by Wicked94Z
Lets see the numbers on the y-axis SS RRR
Only certain f-body bros are privileged to see such information.
Originally Posted by Green3spd
Hooker 1-5/8 LT's/ORY/Magnaflow CB. With cutout. This was Thru cutout.

And Yes, this is a HR cam
You mean 1 3/4" I'm sure. With the right gears that car will be fun on the street and should do not bad at the track. Not sure where you'd feel comfortable shifting, but I'd shift around 6600rpm and go from there... If you want to optimize the CID then different heads and cam should be used IMO.
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Old Apr 6, 2013 | 04:09 PM
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Originally Posted by SS RRR
After looking at it, the curves are fairly close to my graph the way they behave. The difference being my graph is portrait so everything is more dramatic.

Only certain f-body bros are privileged to see such information.

You mean 1 3/4" I'm sure. With the right gears that car will be fun on the street and should do not bad at the track. Not sure where you'd feel comfortable shifting, but I'd shift around 6600rpm and go from there... If you want to optimize the CID then different heads and cam should be used IMO.
Yes..1 3/4. Long day lol

I feel comfortable spinning as high as I need to as long as its not a waste
It has 4.30's also
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Old Apr 6, 2013 | 05:01 PM
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Good reference material if you need to figure out a tire size for the strip:
www.f-body.org/gears
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Old Apr 6, 2013 | 06:36 PM
  #57  
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Originally Posted by SS RRR
Good reference material if you need to figure out a tire size for the strip:
www.f-body.org/gears
Got that already saved to my phone
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Old Jul 30, 2013 | 06:23 PM
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Great thread…

How's the build holding up?
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Old Jul 31, 2013 | 09:05 AM
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That curve looks like it'd be a tire shredder on the street.

I agree with some of the others though, another cam with a tight LSA and more overlap and let her ride. That many cubes could also do well with perhaps some AI 215 TFS heads, but you could probably net a good gain for less $ by just swapping the camshaft and keeping the heads you have.

It all depends on your budget and the goals you have. The 396 you have now is not by any means the hottest HR 396 around, but it's not the laziest, either.
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