460 Dyno results
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Senior User
Joined: Feb 2003
Posts: 228
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From: Arkansas
460 Dyno results
Here is the link to the printout *mine is on a CD actually* on my website.
http://groups.msn.com/bayouboard/sho...oto&PhotoID=21
http://groups.msn.com/bayouboard/sho...oto&PhotoID=21
Posting Guru
Joined: Nov 2003
Posts: 1,888
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From: Iowa
yeah i didnt think they cam from the factory with 365 either, i think your right more like 100 hp less, my 390's running 375 hp look at the bottom of my post for specs, oh yes nice looking truck to mine looks just like it but metallic blue.
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Joined: Jun 2003
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From: Edmonton Alberta Canada
My 88 EFI engine in My 79 Bronco puts out around 185 hp to the rear wheels, when worked to an equation, it works to around 260-265 hp at the crankshaft,
I have the dyno sheet here if you want to see it
I have the dyno sheet here if you want to see it
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Posting Guru
Joined: May 2003
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From: York, NE
I think the high compression 460's of the early 70's had around 350, and when they tuned them to run on unleaded in the mid 70's they dropped to about 220 HP and about 360 ft-lbs. That's about what my Lincoln has, and I think that the trucks were similar.
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Joined: Jun 2003
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All factory 460- 230hp, 390 tq.
Only 93-97 EFI 460- 245hp,410tq.
They never came with anything different unless a dealer or somethin had them specially modified.
They have always been very low on the HP, but very high on the torque. They have a lot of potential tho
Only 93-97 EFI 460- 245hp,410tq.
They never came with anything different unless a dealer or somethin had them specially modified.
They have always been very low on the HP, but very high on the torque. They have a lot of potential tho
Posting Guru
Joined: May 2003
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From: York, NE
All through out the 70's the outputs were different, ranging from 200-230 HP after the switch to the low compression heads and backing off the timing. But I also believe that they tested the HP different before 72 using the old SAE Gross instead of Net. showing inflated HP numbers comparatively.
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Joined: May 2003
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From: York, NE
Yeah, I didn't mean to make it sound like they didn't get any more power, but it would probably be closer to 295 HP net if you figure 80% of gross vs. net. I got the 80% value from http://neptune.spacebears.com/opine/horsepwr.html but that's just a rough estimate as there are many variables.