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colonelsandersman
Member Joined: 26-August-2011 Location: Clear Lake MN Status: Offline Points: 64 |
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Posted: 14-January-2012 at 5:26AM |
I've been trying to get a good idea of factory specs for my 1973 Gran torino 351w and I can never find a straight answer, I've had websites give me completely different results for power ratings; all the way from 161 hp to 260hp. If any ones know a good website that gives accurate information that would be a great help.
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Dan the ranchero man
Senior Member Joined: 24-July-2011 Location: Mchenry,IL Status: Offline Points: 1173 |
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This is some information that am quoting from the Chilton's repair and tune up guide that I have owned for about 15 years. Depending on the application there are a few different spec's
73 351W 2 barrel carb (modle 2150)
156 hp @3800 rpm 260 ft lb tourqe @ 2400 rpm 8.0:1 compression
154-159 hp @4000 rpm 246-250 ft lb tourqe @ 2400 rpm
oil pressure 50 -70 psi @2000 rpm
The problem with the 73 modle year is that was the worst year for Fords power ratings due to the extreme detuning of the engines so they could meet the new federally mandated emmission spec's
Not a big deal these days to upgrade and fix just though you might want to know. Also a car built for use in CA (where spec's are much tighter) where the spec's where tighter might have less power than one say built for use in Tenn.
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Eliteman76
Admin Group Joined: 20-March-2006 Location: Nebraska, USA Status: Offline Points: 5044 |
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Well, to be honest, but not to get on a sidetrack, but it's like the 351 cleveland and 429 stuff...assuming the timing chain has been replaced with anything but a stock replacement, dropping in a good double roller chain, with a multi-point sprocket can set the timing back to the earlier engines {IE, setting back to straight zero, instead of the 4 degrees retarded will help things a bit.
As far as the actual specs, what are you shooting for? The 351w from '73...well, I am biased towards clevelands, but I've never considered this era great on the 302 or 351w...no, swap out the heads for something better, and the other typical things, and it'll bring a lot of life to a stock lump. The 260HP rating was for the Cleveland Cobra Jet 4 barrel engine if I recall. Locally, there is a guy selling some 351W heads that are some sort of hi-po heads...
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Andrew:GTS.ORG admin, '72 Q code 5 speed Restomod
Pondering: #99Problems |
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colonelsandersman
Member Joined: 26-August-2011 Location: Clear Lake MN Status: Offline Points: 64 |
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Appreciate it
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