351 H.o.

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Feb 5, 2008 | 07:57 PM

jareb03

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351 H.o.

My 86 f-150 has a 5.8. H.O. does anyone know what the h.p. ratings were on those engines.

Feb 5, 2008 | 09:20 PM

gnwalker

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The only info I can find says 210 hp but that sounds a little low to me

Feb 6, 2008 | 06:54 AM

jareb03

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Yeah I definately think that it is more than that. My truck has .308 gears and a c6. I can open it up and roast the tires.

Feb 6, 2008 | 09:59 AM

Dobbinicus

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From: Broken Arrow, OK

5.8 EFI was rated at 205 in the 88 to 92 trucks. I would be surprised if the 86, if EFI, was different.

Feb 6, 2008 | 11:15 AM

jareb03

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yeah I know what the 5.8 rating was, but this one is the High Output v.i.n. code. I can't find any data on this particular engine.

Feb 6, 2008 | 11:48 AM

Franklin2

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I have a book that says the Lightning was 240hp so 210hp is probably right.

Feb 6, 2008 | 12:06 PM

jareb03

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It probably is. I've done a lot work to it. I put a 750 holley, headers, 8mm plug wires and true duals all the way out and it's also .060 over bore too. So I am probably pushing 250.

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Feb 6, 2008 | 04:28 PM

jareb03

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thats funny. Like those little imports that sound like a friggen weed whacker. I used to have one with a 300 I6 in it. It didn't set any land speed records but it got me from point a to point b everyday. It pulled good to.