Guys what cams are you guys running on your factory mass air systems please? Guys I have a 302HO camshaft in my 302EFI 4x4 truck right now, but it sucks for low end even after advancing the cam 4* for added low end. The only reason I installed the 302HO camshaft was to keep the speed density system, but now since I have the mass air OBDI system I was wondering what would be the best cam for mass air on a 4x4 truck, need some TORQUE! I know you guys are going to tell me to swap the 302 for a 351w, but at this point I don't want to swap motors, so I really think another camshaft made for a 4x4 truck will do wonders especially when combined with GT40 heads, Explorer Upper and lower intake and a lightning 65mm throttle body...

 

Flat tappet or roller?

You have MANY options. I use the Melling MTF-1 and I am happy with it. Just look for a RV cam...all RV cams are made for low end power. Some people call RV cams torque cams, so you might want to search under both terms.

 

I am running a explorer F4TE roller block and it is currently running roller lifters so it's a roller baby.. What is the best cam to stick in there?

 

There is no such thing as the 'best' cam for any application. Assuming you already have a fuel system, heads and an intake picked out, just determine what rpm range you want to operate in and select the cam accordingly. It is key that all your components match...if they don't the end result will not be satisfactory.

 

Call Comp Cams help line. Have all your Specs on hand (ratios, tire size, etc) plus your other mods. Be particuarly up front about how you use your truck. They can give you good numbers regardless of who you eventualy buy from.

 

I am looking for a good off the line torque cam basically, 4x4 mud bogging action, so all the torque I can get out of the motor, particuarly TORQUE from 1500-5000RPMS that's what I am talking about there as far as cam goes....

 

Go with an E-303 Ford motorsports cam, it will give you 1500-5500rpm power and will work with stock components if nessecary. Plus you get a scookum idle out of it.

 

I don't think so.. it's got 282 deg duration compared to the 266 degrees on the HO cam, more duration does not give you more low rpm TQ. Ford recommends a high stall torque converter with this cam..


Ford Racing Performance Parts [M-6250-E303]

 

What if its a 5 speed how would that make out?

 

It makes no difference to where the engine will make power.

 

This was originally posted nearly a year ago.

 

I am considering doing a freshen up on my 95 F150 5.0 and have given serious consideration to just swapping in my Mustang motor and doing a 351 for it. Point being, the stang motor is E303 cammed, GT40P headed, Explorer intake, FRPP headers, etc and should be very close to 300 HP real and I have decided not to swap it into my truck. Main reason is that while it does have decent torque, combo really comes to life above where my truck would live daily driving (car is a 5sp and loves to pull to 5000+ rpm) but that is not what would suit my truck (not enough true torque and way too high RPM range to ever get the goodie out of it). Admittedly, would be snappy compared to what's there (stocker, stocker 5.0 w/140K) but at a minimum would swap to a different cam more suited to pure grunt torque. Just my .02 worth. RV cam would sure sound wimpy compared to the E cam though, it has a nice "don't even try me" lope to it!

 

Hell yea, so what everyone is saying is that there is no better cam suited for the truck engine then what came stock? I find that hard to believe.

 

No.. that's not what I'm implying. The poster just above hints at what this type motor would be like in a truck, and I know of another user from here that has a 5.0HO in his truck with a GT40 top end on it(heads and intake). He's currently looking for another cam because the motor is a gutless wonder below 3000rpm.. though it pulls like a Motha above that. The 5.0 is weak at low rpms, the way to improve on that is to use a short duration high lift cam, longtube headers, and if possible bump compression. I currently have the Comp cams 35-349-8 coming for my 5.0 which I'm swapping into my truck while I buildup the 5.8. This cam looks like it should produce good truck power on DesktopDyno, and I'll know for sure in a couple weeks. There's nothing you can do to give a 5.0 the low rpm TQ 50 extra cubes does though, so I don't expect this motor to have the same grunt the 5.8 does. We'll soon see.

 

does that 5.0HO work better than the stock truck engine below 3000rpm if you compared the two side by side?