1992 F150 302 & Mustang 302 - Ford Truck Enthusiasts Forums



1992 F150 302 & Mustang 302

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Old 10-31-2012, 12:14 PM
ErikFlareside ErikFlareside is offline
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Talking 1992 F150 302 & Mustang 302

I'm just wondering what the differences are from the F150 302 and the mustang 302 are. I want to add more horsepower to my truck but a lot of the time i cant find engine parts for it, so I was hoping I could buy parts for the mustang to fit my truck.
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Old 10-31-2012, 09:25 PM
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Internally the only differences between the HO and truck motors are the cam and pistons, the HO cam has more lift and duration and the HO pistons are forged vs cast but compression ratio is the same for both. Externally the truck intake is WAY bigger than the HO so it's not a bottleneck at all, but the truck exhaust is a big one. More HP from a truck motor is dumb easy.. swap in a better cam and change the whole exhaust system.. BAM... you got 260-275hp. But it's still a mouse motor pushing a vehicle that is on average 1000-1500lbs heavier than a mustang so don't expect Mustang performance.. that takes 50 to 100 more cubes or a supercharger and lots more axle gearing.
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Old 11-01-2012, 11:33 AM
ErikFlareside ErikFlareside is offline
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Thanks man, you got any ideas on some better cams i could swap in?
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Old 11-01-2012, 05:32 PM
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Yep. How is your truck equipped.. gearing, trans, tire size, and how do you use it?
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Old 11-01-2012, 06:48 PM
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92 has the "base" roller cam in it, so anything you swap in there is an improvement. For starters even a 94-97 302 truck cam is a vast improvement, although you'll need to deal with the different firing order for this one or the HO cam. I just sold a 92 awhile back and it had an E4OD/3.55 rear, it was every bit as responsive as the 95 I have now with a 351/E4OD/3.08 rear.
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Old 11-02-2012, 08:55 AM
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Everything is stock in it. I have 29 inch radials with 15 inch rims. I'm just using to go back and forth from school. I'm planning on having a 6" suspension lift and 2" body lift with 37" tires. Its a 4x4
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Old 11-02-2012, 02:42 PM
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Unfortunately there were at least 6 different transmissions used in these trucks and 5 potential gear ratios were available so "stock" doesn't tell me anything you'll need to find out what you have and post it up, but that's easy enough to do just find the trans and axle codes on the drivers door calibration decal.

The reason that's important is because some of the transmission don't have an OD ratio and those that do vary a lot and that will impact the gear ratio you're going to need for 37" tires.. which is gonna range anywhere from 4.10 to 5.13.
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Old 11-02-2012, 06:36 PM
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Check the axle ID tag on the back of the rearend, you'll find the ratio there and whether it's got traction loc too. I'll bet it's got 3.55's, if so it'll have 3 55 stamped there, if it's got trac-loc, it'll have 3L55. And for a truck, you want to move towards more torque output, not HP, especially with a 302 turning larger diameter tires.
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Old 11-06-2012, 05:18 AM
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if you want all out power, andersonfordmotorsports.com has arguably some of the best cams in the business, but they are more pointed toward HP. also a comp cams magnum 270hr is a good replacement for the stock cam, it responds well to mild mods like exhaust and intake and it has a pretty smooth idle
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