yours must be nicer than mine, my capri has long tube equal length headers that are a pain (but worth every penny)

I am going with the big six in my bronco (which was 302 powered) due to it being a tough, economical powerplant. i got my capri to go fast, but i want the bronco to take me anywhere and, more importantly, get me back safe and sound.

 

HUH ? WHAT ? How would that make it a 329 ?
Regardless of the rods and pistons combo the 240 crank is still a 3.18" stroke (vs the 300s 3.98")
Huge boring aside, I don't see how you could gain 89 cid by changing rods and pistons !

 

lol yeah rods and pistons do not affect the displacement volume...Only the clearance volume

 

Okay guys when I am wrong I admit it. I don't know where I found the information that said the 240 was a stroked small piston 300, but it was incorrect. From this forum, and others I have found out that the 300 is a stroked 240, and that is what gives the additional 60ci. My mistake.

 

As to the reliability of those old 300's my first ford i owned was a 74 ford f-100 and i bought it with 400k on the clock for 50 bucks, truck was totaled but motor ran,albeit needed new rings and bearings. replaced those in 2 days with minimal problems and proceeded to toss the motor into an 85 f-150 and put another 200k on the clock, truck was smashed in a rollover in a snow storm. towed truck home yanked the same motor and placed it into a 79 mustang fast back....drove the car for 3 more years and finally blew the block apart at near 800k all i ever did was replace the valve guides,piston rings and bearings lol all started for 50 bucks!

 

Bubba, I know you don't mean any harm but try not to exagerate so much. Guys around here don't like that. For one thing a 300 won't fit in a Mustang; at least not without chopping the car to peices. A 200 I6 would, but not the 300.

 

i stand corrected i have had a few ford projects and got confused a bit.. those were the dark days so some things r cloudy .that motor came out of an old 76 ford station wagon at near 400k burning oil so bad it was seeping from the tail pipe as to the swap it went strait to the 79 ford mustang and nearer the truth ,do to relapse in memory and a few phone calls i have estimated that motor at 580k not 800k so please accept my apology like i said it was a memory from the young and dumb days i wish i could forget entirely. i do have a real gear head ? about the 300 though.....i own a 94 f 150 2wd with a fuel injected/tbi not sure which 300 and am only getting 16 mpg with an automatic i swapped plugs wires and cap and rotor out replaced a starter and the oil pan and some screen in the oil sending unit and the radiator was swapped from a tow truck nice 4 core, low temp thermostat and still 16m.p.g. what gives oh replaced fuel filters and one fuel rail and one pump and rear tank also. please help and thanks for the ideas on the turbo lol

 

Hey it's no big deal. Sometimes we get new guys who post really outragious garbadge.. I couldn't tell if you were one of those or not.

What gear ratio is in your F-150? 16 mpg isn't great but it's not horrible. I get 16 mpg going 60 mph. I have a 4.11 gear, so it's kinda low. I have the autmatic also. Really 16 isn't that off.. It could be a number of things. Also, keep in mind 300's are a strange beast when it comes to fuel mileage. More than one guy on here can tell you they have had experience with two identical trucks - and they each got largely different versions of fuel milage. One might get 18 mpg and the other will get 15.8.

Is your truck running good???? There may be NOTHING wrong with her; just a slightly heavy foot, perhaps?

 

no idea it is bone stock with the overdrive button on the shifter but as far as i know it only has 2 owners and no mods other than a push bar and a cap i even have the stock size tires but they are all terrain wranglers and it runs like a top set the timing perfect and everything idles at around 550 rpm smooth as glass, only thing left would be 02 sensors or a faulty cat, i replaced the pcv valve and even put injector cleaner threw it twice in a row to help out, an it seems to like mid grade the best... runs like hell on premium for some reason, i even checked cylinder compression with that device that screws into the spark plug port so i am outta ideas. p.s it will do 100 mph so it cant be geared that low. thanks for the info.

 

It's probably nothing then. It sounds like you have the 3.08 gear. My truck would bottom out the speedo when I had the 3.08 gear. I know it wasn't safe but these old Fords still handle alright at high speeds. I was impressed.

Get some pictures of your truck! I want to see her.

 

hahaha, yeah ive gone past the 85 mph mark on my '83 (which of course is the highest the speedo registers which means its the max speed of the vehicle, right?). That's with 3.55s. It was screaming along at like 3600 or something lol. Good times.

 

Don't you mean 90? The last numbered digits say 85 but it does register up to 90 I think.

But yeah I hear what you're saying. Good times indeed. Good to see you're still around man.

 

No kidding they're stable.
After I did my full exhaust upgrade (going from a 1 7/8" exhaust and a cat that was so plugged I was blowing manifold gaskets to EFI exhaust manifolds and a 2.5" high flow setup), I was so unused to the newfound power, I'd continually look down and realize I was doing 90 - 100mph in a 75 without even meaning to.
((3.00 rear end with overdrive = 2650RPMs at 100mph. ))

I seriously could not believe how smooth and stable that truck is at that speed. Of course, I slowed down immediately, but I was still impressed.

 

Don't give us that Bullspit, Justin. We're all friends here. We know what you were really doing.

"Man this Ole' Girl feels so much better. I wonder how fast she'll go now.." *put's it to the floor*

"HUZZAH!!!"

 

Okay you got me. 90 is when I don't paying attention (my wife can confirm that keeps happening. )

100 was when I wanted to see what it could do. GPS confirmed.