Basic Mods
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Basic Mods
Howdy guys I'm pretty new at this modding stuff and I'm looking for some basic modifications I can do to my old 91 f150 302. I've already got plans to replace my intake, and a bigger throttle body, maybe some performance headers. Like I said though I'm pretty green at this so any help will be appreciated. Some basic things, I will not be doing an engine swap or any internal mods. Strictly bolt ons right now
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yes the truck is running well now. After a new plugs, wires, intake and valve cover gaskets, distributor cap and rotor kit, duralast ignition coil, when I took off the valve covers everything was in great condition
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Laughing Gas
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Make sure you know the pros and cons of everything before you do it if you want to keep your truck running well
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If you're just looking for something to do then fine but those two mods will net you a grand total of zero gains, with this vintage motor there is nothing even close to restrictive upstream of the camshaft. The exhaust on the other hand needs some work so knock yourself out just don't go too big or you will lose what little low rpm grunt this motor has, don't put anything bigger than 2.5" pipe on for a single exhaust or 2.25" if duals.
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If you're just looking for something to do then fine but those two mods will net you a grand total of zero gains, with this vintage motor there is nothing even close to restrictive upstream of the camshaft. The exhaust on the other hand needs some work so knock yourself out just don't go too big or you will lose what little low rpm grunt this motor has, don't put anything bigger than 2.5" pipe on for a single exhaust or 2.25" if duals.
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Slightly different kettle of fish for you to sniff over, but I just removed headers & 2-1/2" duals on my '78 351M. Headers leaked & rotting out, went back to manifolds, Y pipe + original muffler. No tail pipe; just loud enough so I can hear it. Maybe imagination but seems to run smoother now, especially just off idle. Definitely much better to drive.
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That is a pretty good driving around gear for a truck with relatively stock sized tires, but if you want a bias more towards performance and/or if the tires are larger than 31" go to 4.10 or better.
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