351 Rating ?
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From: Southeast Idaho
351 Rating ?
I've been stumbling around here reading various threads and every so often I read about HO 302s and 351s and cam differences. In my manual,(F series pick ups Chilton) all the 351s that are fuel injected and in a truck have the same torque and hp rating. What gives with the HO? I know the chiltons leaves a lot to be desired. Is it something the manual left out?
I read somewhere here that the cams in non HO are "lame". Is that so? Do I have a lame engine if it's non HO? It seems to run pretty strong for being in an F250. I haven't hooked on to my trailer with it yet but it sure feels better than the other truck I pulled it with. (Chevy 5.7 TBI) That could be the difference in gearing though.
I read somewhere here that the cams in non HO are "lame". Is that so? Do I have a lame engine if it's non HO? It seems to run pretty strong for being in an F250. I haven't hooked on to my trailer with it yet but it sure feels better than the other truck I pulled it with. (Chevy 5.7 TBI) That could be the difference in gearing though.
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If I remember correctly the Non HO 351 in 1990 put out 230hp and the 302 put out 210. The Lightning in 94-95 had the HO351 with 240hp. But , no you don't have a junk cam, what you have is a FORD baby and ain't nothing about'em junk.
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If yout manual has accurate info... and that's not always the case, you'll see that the '94+ 5.8 trucks do produce more HP and TQ than the previous version, that's when the motor got the F4TE roller cam. You do have one of the "lame" motors, but the gearing in the truck has a hugh impact on towing ability and the overall feel of power the vehicle produces. You'll find an axle code on the driver's door or door pillar, that will decode to your gear ratio. BTW, The 351HO was only available with a carb before 1986.
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Originally Posted by Conanski
BTW, The 351HO was only available with a carb before 1986.
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Originally Posted by Conanski
If yout manual has accurate info... and that's not always the case, you'll see that the '94+ 5.8 trucks do produce more HP and TQ than the previous version, that's when the motor got the F4TE roller cam. You do have one of the "lame" motors, but the gearing in the truck has a hugh impact on towing ability and the overall feel of power the vehicle produces. You'll find an axle code on the driver's door or door pillar, that will decode to your gear ratio. BTW, The 351HO was only available with a carb before 1986.
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Originally Posted by frankyford
Diesel prices are a little higher, but you'll get better pulling power and better fuel mileage. Also the diesel will last you longer.
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[QUOTE=Conanski] You do have one of the "lame" motors,[/QUOTE
Are the cams different in lift and duration or just the fact that the new ones are roller. Roller will add some hp but that in itself should be negligable.
Are the cams different in lift and duration or just the fact that the new ones are roller. Roller will add some hp but that in itself should be negligable.
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From: Ottawa, Ontario
Originally Posted by dixokai
Originally Posted by Conanski
You do have one of the "lame" motors,
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Wow, Paul, sounds like you got these engines down to a science. I'd like to get a little more good info. with those kinds of details. Reading on this board is a pretty good resource but those kinds of things are hard to get (with the rest of the story). Can you point me in a good direction to read up on that kind of stuff?
