1994 F-150 351W “SD” friendly cam - Ford Truck Enthusiasts Forums

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1994 F-150 351W “SD” friendly cam

 
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Old 02-03-2019, 03:00 PM
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1994 F-150 351W “SD” friendly cam

So I ordered the crane cams 444232 for my 1994 f-150 “SD” I pulled the stock cam out and was surprised to find it to be a roller cam. Now am I going backwards installing a flat tapped cam? I did put the 444232 cam in “not everything completely back together” and the stock push rods are approximately a half inch to short. Would the comp cams 35-349-8 be a better choice?Any help/info would be much appreciated.
P.S. The truck is a 4x4 and has110000 miles with pacesetter long tube headers and 2.25 duel exhaust. Stock heads and stock intake manifold.
 
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Old 02-03-2019, 03:40 PM
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Originally Posted by Joppy View Post
So I ordered the crane cams 444232 for my 1994 f-150 “SD” I pulled the stock cam out and was surprised to find it to be a roller cam.
'94 was the start of roller cams in the 5.8 motor.

Originally Posted by Joppy View Post
Now am I going backwards installing a flat tapped cam?
Yes.
Originally Posted by Joppy View Post
I did put the 444232 cam in “not everything completely back together” and the stock push rods are approximately a half inch to short.
You can't use that cam with roller lifters and yes the pushrods would be too short.

Originally Posted by Joppy View Post
Would the comp cams 35-349-8 be a better choice?
Yes, the Crane 364211 would produce more stock like idle and emissions... if that is a concern.
 
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Old 02-03-2019, 03:47 PM
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The crane 444232 came with new flat lifters, I’m looking for a cam that would give me more torque. In your opinion which would be a better cam, the crane 364211 or the comp cams 35-349-8? I really don’t want to mess with the heads at all, just a slide in cam.
 
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Old 02-03-2019, 04:05 PM
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More low rpm torque or more peak torque?
 
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Old 02-03-2019, 04:25 PM
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Peak torque
 
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Old 02-03-2019, 04:47 PM
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I ran 3 cams through DesktopDyno and the Crane 364211 makes the most peak torque and HP.. but not by a large margin. The Comp 35-349-8 is quite a bit cheaper and only gives up 3-4hp/tq to it, but that cam also produces 30tq and 40hp more than the stock cam which the program rates at 221hp/347tq with headers.
 
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Old 02-03-2019, 05:55 PM
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Will my stock lifters, springs, and push rods work with either of them?
 
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Old 02-03-2019, 06:47 PM
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Originally Posted by Joppy View Post
Will my stock lifters, springs, and push rods work with either of them?
Yes.... but a new set of springs that are a little better than stock would be a really good idea and you cannot use 1.7 rockers.

 
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Old 02-03-2019, 07:38 PM
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Awesome thank you, my stock rockers are 1.6 so I should be good there.
 
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Old 02-10-2019, 05:21 PM
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LIFTER TICK AFTER INSTALLING COMP CAM 31-255-5 IN MY 1990 F150

Originally Posted by Conanski View Post
I ran 3 cams through DesktopDyno and the Crane 364211 makes the most peak torque and HP.. but not by a large margin. The Comp 35-349-8 is quite a bit cheaper and only gives up 3-4hp/tq to it, but that cam also produces 30tq and 40hp more than the stock cam which the program rates at 221hp/347tq with headers.
CONANSKI WHAT LIFTERS ARE BEST FOR MY 90 F150? I PUT IN THE 31-255-5 CAM & COMP CAMS PRO- MAGNUM LIFTERS NOW I HAVE A LOT OF TICKING.
 
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Old 02-16-2019, 05:27 PM
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Crane 364211 says 112* Lobe Separation and that dont play well with SD?

Comp 35-349-8 says 114* Lobe Separation and that works with SD and no tuning?
 
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Old 02-16-2019, 07:38 PM
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Originally Posted by torq'ta 5 8 View Post
Crane 364211 says 112* Lobe Separation and that dont play well with SD?
Comp 35-349-8 says 114* Lobe Separation and that works with SD and no tuning?
No that spec alone doesn't tell the whole story. Low lift(0.050") durations also affect the vacuum signal which is the important thing for MAP based EFI systems, and in this case the Crane has a lot less 0.050" duration than the Comp so the combined effect is the Crane will produce a stronger and smoother vacuum thus making it better suited. The 35-349-8 is at about the limits of what is considered acceptable for SD EFI when emissions are part of the equation, an SD motor will run with an even more radical cam but it's not likely to pass the sniffer and idle quality goes down significantly, the next step up in the XE line the Comp 35-351-8 for example results in a motor that is stall prone particularly with a manual trans.
 

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