97 460 needs cheap power
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Junior User
Joined: Jul 2008
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From: Hick Town Dayton, PA
97 460 needs cheap power
I have a 97 crew cab with a 460 bone stock engine. only upgrade at this point is a K&N air filter with a trimmed up air inlet and a decent exhaust with a gutted cat. I use it for a daily driver but also pull in a stock truck pulling class. I need some quick inexspensive power upgrades just to get the tires turning. 33x12.50x16.5 mud tires on old style white spoke wheels. Any suggestions would be much appreciated. thanks.
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Junior User
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From: Hick Town Dayton, PA
Elder User
Joined: Nov 2007
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From: Northern Minnesota
put a timing chain from a 1970 460 in it. It will change the cam timing back to straight up. I assume they don't check emissions real closely if you have a gutted cat. This is supposed to be a night and day difference. I never ran my motor before I changed it but its a bone stock 460 with 3.55 gears and 33's and its got plenty of wheel spinning power.
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Junior User
Joined: Jul 2008
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From: Hick Town Dayton, PA
OK? 1970 460 timing chain, what is the diference in them? will I have to change anything else to do this? what else will it effect, computer, or anything else? you got my attention. And emissions around here is just a visual inspection, it just has to look like everything is there.
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From: Northern Minnesota
68-71 they had cam timing set to straight up. After that they changed cam timing to satisfy tougher emmissions standards. This was not good for power. I have a carbed 460 but I guy I work with has a 460 tow rig that had this mod done to it when he bought it, its injected and as far as I know its fine. Hopefully someone else can chime in here?
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Junior User
Joined: Jul 2008
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From: Hick Town Dayton, PA
I'm going to look into this a little further. Since I opened the air intake up a lot, when I rev the engine up to around 3500 rpms and let off it back fires like crazy and the engine sputters for a few seconds. I wonder if timing is having an effect on it.
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New User
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From: Minot, ND
From what I understand all the F.I. 460's already have the straight up chain. Only the 73+ carb engines use the other one.
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Elder User
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From: Northern Minnesota
well good thing you said something, I would have led this poor guy on a worthless goose chase...
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Junior User
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From: Hick Town Dayton, PA
I do know that by chopping off the little air restricting cone shaped things in the plastic peice of the air inlet (between the hoses), I gained alot of power. And the engine doesn't sound like its sucking for air any more and gave the exhaust a much nicer bellowing sound. I can't believe those cone shaped things were even there.
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I'd put a MSD on it. i dont know much about the injection, infact i asked in a post myself, but hotter spark is always a shure bet. Just make shure you do the wires, coil and cap/rotor with all MSD or sim. parts. Having a hot box and stock wires will only cause problems. It will take a few $ but it pays for itself over time, keeps oil clean abit longer, and adds power over total power range.
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