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Old Oct 15, 2021 | 05:50 PM
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CAM QUESTIONS

Can I run this cam with a set of stock gt40p heads on my 96 f150 351w? What will I need to get to run it, or whatever cams do you suggest?

COMP Cams Xtreme Energy Camshafts 35-320-8
 
Old Oct 15, 2021 | 09:46 PM
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Yeah that will run but it will max out the stock injectors at higher rpms so a larger set and tuning will be needed.
 
Old Oct 15, 2021 | 11:17 PM
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Originally Posted by Conanski
Yeah that will run but it will max out the stock injectors at higher rpms so a larger set and tuning will be needed.
What would you suggest the best cam be then. It's completely stock other then shorty headers. I will get some Gt40p heads in the future though.
 
Old Oct 16, 2021 | 05:26 AM
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I would stick with it, you are ahead of the game already, being MAF, and OBDII, they have tuners for yours, your plan for GT40P heads will need manifolds, or a known good set of headers that fit, because of spark plug angles being unsatisfactory, and seems as though noone can find them.
 
Old Oct 16, 2021 | 09:13 AM
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Well the headers im looking at are the JBA Headers 1628SJS
 
Old Oct 16, 2021 | 09:25 AM
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Try to score some Fox P headers, they fit the frame rails of these trucks. Well, standard Fox 5.0 shorty do for sure. FMS made them for a while when I used them last.

P heads need springs, stock are junk and you will float away at any decent RPM with the lift on that camshaft. TFS makes a drop in set. I implore you to ponder on using P heads, they are not going to be inexpensive to have a quality set by the time they are installed with springs and valve work.

I would do a plain 302HO cam and put the Comp cam and P header money toward real cylinder heads.
 
Old Oct 16, 2021 | 03:08 PM
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I like that comp cam... it is pretty much the smallest step up possible from the stock cam in that motor, but to keep gains within the limits of the stock injectors you should just install it without changing the heads. Also note that this cam only produces 0.512" lift with 1.6 rockers and no you don't have to use 1.7 rockers with it, and this motor will make 260-275hp with just the cam and exhaust.
Standard GT40 heads are a lot less hastle to install, but those too will push fueling requirements beyond 19lb/hr so they would need to be upgraded and tuning applied.
 
Old Oct 16, 2021 | 04:32 PM
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Originally Posted by Conanski
I like that comp cam... it is pretty much the smallest step up possible from the stock cam in that motor, but to keep gains within the limits of the stock injectors you should just install it without changing the heads. Also note that this cam only produces 0.512" lift with 1.6 rockers and no you don't have to use 1.7 rockers with it, and this motor will make 260-275hp with just the cam and exhaust.
Standard GT40 heads are a lot less hastle to install, but those too will push fueling requirements beyond 19lb/hr so they would need to be upgraded and tuning applied.
Okay. So to confirm the COMP Cams Xtreme Energy Camshafts 35-320-8 will work with stock heads and rollers? With no fuel upgrades. And that will put me around 260-275 HP with headers and exhaust. Anything else I should do or that you suggest?

Also. I'm looking for more low end TQ and HP rather than high end power. If there is another cam that would be better for that.
 
Old Oct 16, 2021 | 05:07 PM
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Valve springs. Stock are tired, you have seat wear on those E7s, and they are not made for high lift.

The Comp is a nice mild cam, I would run it for sure. I just llike the HO as it is cheap and provides large gains for low cash with a roller block.

I would not buy any GT40 or GT40P head. Power gains are minimal for cost to me. P is a better head with better torque, but needs a P specific header as previously mentioned...which drives up the cost.
 
Old Oct 16, 2021 | 09:22 PM
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Originally Posted by Yit96
Okay. So to confirm the COMP Cams Xtreme Energy Camshafts 35-320-8 will work with stock heads and rollers? With no fuel upgrades. And that will put me around 260-275 HP with headers and exhaust.
Yes, I had the sister cam(35-349-8) in a roller converted 5.0 with stock E7 heads.

Originally Posted by Yit96
Anything else I should do or that you suggest?
New springs are never a bad idea, but you have to be careful as the matching spring set that Comp sells will not fit E7 heads without special retainers... the stock retainers don't leave enough travel on the exhaust valves.

Originally Posted by Yit96
Also. I'm looking for more low end TQ and HP rather than high end power. If there is another cam that would be better for that.
If you want maximum low rpm torque(HP is the product of Tq x RPM) then you want the 35-512-8, longtube headers and single 2.5" exhaust system. But that cam isn't much different than the stock cam with 1.7 rockers so this combo won't produce much gain over just adding rockers and the exhaust.
 
Old Oct 17, 2021 | 12:11 PM
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So what combo/setup would you suggest that would give me around 300hp and high TQ? And will a tuner help?

I want to keep it as reliable as possible to.
 
Old Oct 17, 2021 | 04:14 PM
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300hp will require 24lb injectors and either ported E7s or GT40 heads.. and probably some intake porting. With one of those "calibrated" MAF meters you may get away without tuning but I suspect the motor will run better with some. Overall I think you will be happy with the torque produced by this combo, the motor will just pull better everywhere.
 
Old Oct 17, 2021 | 05:44 PM
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Originally Posted by Conanski
300hp will require 24lb injectors and either ported E7s or GT40 heads.. and probably some intake porting. With one of those "calibrated" MAF meters you may get away without tuning but I suspect the motor will run better with some. Overall I think you will be happy with the torque produced by this combo, the motor will just pull better everywhere.
Ok. So that combo being. Headers, 35-320-8 comp cam, and new spring in the heads. Around how much will that give me HP and TQ wise? And will some tuning help as well?

And got some links for springs and retainers? For E7 heads that works with that cam.

If I get some Gt40p heads will I need a new intake and headers?
 
Old Oct 18, 2021 | 11:20 AM
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Just curious as to what my new setup will produce also. I went with an E303 cam, new roller lifters and Pro Comp 180 aluminum heads. Still have stock 19lb injectors on a 96 351 Windsor with shorty headers on a MAF engine. Hopefully wont have to tune but if I do it shouldn't be an issue. More than 300 I hope
 
Old Oct 18, 2021 | 01:49 PM
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I never had much luck with recalibrated MAFs. Better to tune fuel curve.

300rwhp versus 300hp is a big difference...stock 302 trucks do around 130-140rwhp from what I have seen. Finish your build and dyno it.

I do not know much about the Procomps but aluminum with larger valves and a fast burn chamber is going to flow well even with a weenie cam. I ran an E cam forever ago, sounds great and decent torque in a 302 due to a tight LSA.

Somewhere I swore I saw the numbers for the roller 351W cam and it was not bad for a TQ/RV style work camshaft.
 



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