CAM QUESTIONS
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Cross-Country
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Lead Driver
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From: N.W. Alabama
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.
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Cross-Country
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Lead Driver
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From: North Texas
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.
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.
FTE Legend
Joined: Jun 2006
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From: Ottawa, Ontario
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.
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.
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Cross-Country
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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.
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.
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.
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Lead Driver
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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.
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.
FTE Legend
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From: Ottawa, Ontario
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.
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.
FTE Legend
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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.
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Cross-Country
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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.
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?
Junior User
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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
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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.
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.