302 bolt-ons
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Junior User
Joined: Jul 2007
Posts: 60
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From: Clearfield Pennsylvania
302 bolt-ons
I'vegot a 92 F-150 with an 87-91? 302 in it. I am looking to boost my hp because 185 isnt that great. What should I do? 270 pounds of torque is ok but anything to help that would be good. Keep in mind I have a limited budget and am looking for bolt ons. Also when does the 302 make its peak hp?
Hotshot
Joined: May 2003
Posts: 11,141
Likes: 25
From: south louisiana
A cam change will do more for it than bolt ons. About the only bolt on I'd suggest is shorty headers. You've got a roller cam, but it's the smallest roller Ford used in the 5.0's. The specs are 244/256 advertised duration (not the @.050 duration) lift is .379/.395. You could also swap to 1.7 rockers to improve the lift some (it'll go up to .403/.420 with 1.7's) If you do a cam swap, you'll need to limit that to a Speed Density friendly grind. Also, swap the paper filter for a K&N style filter and remove the silencer from the filter box.
Senior User
Joined: Jan 2008
Posts: 196
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From: Mooresville, NC
From what I've learned on this site so far, it would be heads (GT40's or reworked stock heads), cam change and exhaust (headers). As far as specifics on what cam, I dont know. I'll be looking for opinions on that soon.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
If the motor was out of a truck it probably has a flat tappet cam in it, same specs as the base roller but they are cheaper to replace. The CompCams 31-255-5 is a good upgrade that retains the stock firing order.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
Originally Posted by Ethan9
270 pounds of torque is ok but anything to help that would be good.
Originally Posted by Ethan9
Also when does the 302 make its peak hp?
Senior User
Joined: Sep 2007
Posts: 499
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3800RPM? I could have swore my 302 in my '86 F-150 is rated at around 280 ft-lbs at 2400RPM. Not sure on the measurement itself, but I am sure it was rated for its peak at 2400.
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FTE Legend
Joined: Jun 2006
Posts: 31,930
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From: Ottawa, Ontario
Originally Posted by IcemanV8
3800RPM? I could have swore my 302 in my '86 F-150 is rated at around 280 ft-lbs at 2400RPM..
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Elder User
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Originally Posted by Ethan9
I'vegot a 92 F-150 with an 87-91? 302 in it. I am looking to boost my hp because 185 isnt that great. What should I do? 270 pounds of torque is ok but anything to help that would be good. Keep in mind I have a limited budget and am looking for bolt ons. Also when does the 302 make its peak hp?