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ok so ive got the factory 302 that came in my 82 F100. it was rebuilt to stock condition oh about 55,xxx miles ago. It still has the old 2 bbl carb on it. I was just wondering what was the approximate horsepower and ft. lbs. of torque. Just for extra info the rear end gear is 3.25 and also i have true duals as the exhaust setup. and the tranny is a C6.
ok that kinda coinsides with some of the other info i've got. but ive got answers from research varying anywhere between 125 hp w/ 215 ft/lbs to up to 175 hp w/ 260 ft/lbs.
I seem to recall the carbureted 302s/5.0L produced around 135 and it was the EFI 302 that got 175HP I know cause I compared the pros and cons of going with a fuel injected 302 or a fuel injected 300 and decided the 300 was the better option since the power output difference was minimal I think like 10HP and 11-12Ft lbs or something like that....I figured if I'm going to get more or less the same power I want the six for the improved fuel economy over the 8
The HP a motor makes depends heavily on what pistons and cam were installed when it was rebuilt. If it was done exactly to factory spec for 1982 then it would be around 150hp with an all factory exhaust system, but since just about anything else flows better you could have 10-30hp more.
I found this"Emission regulations saw a progressive reduction in compression ratio for the 302 two-barrel, to 9.0:1 in 1972, reducing SAE gross horsepower to 210 hp (157 kW). In that year U.S. automakers began to quote horsepower in SAE net ratings; the 302 two-barrel carried a net rating of 140 hp (104 kW). By 1975 its power would drop as low as 122 hp (91 kW). Not until fuel injection began to appear in the 1980s would net power ratings rise above 200 hp (149 kW)." But hes absolutely right though if it was built 100% stock it would have somewhere between 122-150HP being an 80s 302 though it will probly be closer to the 122-135 range power sucked in the 80s but with dual exhaust and any extra goodies that changes the whole ball game
ok so from what Conanski, and court1100f i probably have about 170 hp. approxamitly. So what if i got headers to improve the air flow more to stop that "bottleneck" in the manifolds. I would just like to know. I love knowing how much power my truck could make. Mainly cuz i wanna know how much more power my dads 95 f150 has than mine. cuz he has the efi 5.0
For the uses of such a truck, horsepower means very little anyway. It is a mathematical calculation. It's TORQUE that you need and this engine in stock form makes very little of it.
With some compression, an RV type cam and some long tube headers, it could be made into an engine with about 300 foot pounds of torque or maybe more. If it's just a running around vehicle that might be enough. If it is used for heavy hauling or towing, forget it. The 302 will never be able to cut such mustard.
no i dont use it for towing or hauling. im just a senior in high school. I just wanna have the fastest, and loudest (already got that, except my friend who has a 78 GMC half ton lowered, with a 350 SBC where his exhaust fell off and its just the headers now. but that dont count.) The only time ill be using this truck for hauling is when i move my stuff out of my house in the summer to go live a couple of cities away.
You also have to look at the motor as a package, you won't see dramatic increases in power unless you improve the breathing ability all the way through it. The heads on that motor aren't significantly different than what is on the newer motor, so it's capable of producing around 250+HP and 300+ft lbs TQ if the carb, intake, camshaft and exhaust are all upgraded to allow more volume. The cam is the part that is the hardest to change, but it will also have the greatest effect on total power output.
yeh i know the heads are extremly different from the newer ones. currently i have plans of changing the carb and intake to fit a 4 bbl. And that whole thing with having the fastest truck at the school i cant say county. i wish i could but cant. I have a friend at our rival school who has an s-10 with a LS1 motor and tranny. he spins tires all the way up to 5th gear. its only a 6 speed. so his just a bit faster than mine will be.
yeh im not trying to beat my friend ryan's LS1 powered S-10. Thats not gonna happen. Hell i cant believe he bought the engine and tranny with his own money from working where i work and cutting yards during the summer. He said he was saving for 2 years.
ok so from what Conanski, and court1100f i probably have about 170 hp. approxamitly. So what if i got headers to improve the air flow more to stop that "bottleneck" in the manifolds. I would just like to know. I love knowing how much power my truck could make. Mainly cuz i wanna know how much more power my dads 95 f150 has than mine. cuz he has the efi 5.0
How does dual exhaust get you 35 horse? You started with a factory 135 horse. Maybe you're at 140.
Your engine has low compression and a timid cam. Nothing you do will bring it close to the 225 net HP that the best 302s hit, unless you do a tear down rebuild with new pistons, cam, intake, etc.
What does your engine rev to easily? 4000? Does it strain to make 4500?
Headers aren't going to add much to a low rev motor.
Check out your carb. Depending on what you have, you may be able to get a bigger 2bbl. This, along with the duals, will give you the easiest, cheapest 10 or so HP you'll ever get.
As for a '95, the link I posted says 195 hp, with 270 tq, using sequential EFI, and 205 hp 275 tq using multi-port EFI for manual trans. All kinds of stuff is different in these engines, not the least of which is electronic fuel injection which would be a costly conversion in your case.
And now for the lecture: Your loud truck merely serves to alert law enforcement and draw them to you. Everyone else will hate it and will tell you so over beers at your 10 or 20 year reunion. (including those with their own loud vehicles) Concentrate on school, don't throw money away on a truck. Focus your efforts on making it safe--things like tires, brakes, wipers, defroster function--you know, boring crap that's no fun.
Prepare for college or some secondary training or education.
Once you get a job, and then get a better job, you'll be able to support hotrod hobbies. Foul up your high school, and you could face a lifetime of 26 year old trucks.....
Good luck in school and good luck with your truck.
Prepare for college or some secondary training or education.
Once you get a job, and then get a better job, you'll be able to support hotrod hobbies. Foul up your high school, and you could face a lifetime of 26 year old trucks.....
Good luck in school and good luck with your truck.
^ What he said.
Be happy you have a 302. It's a good, solid motor. Be happy it sounds good. Keep it loud if that's what you like. Nothing wrong with that.
I would keep your 302 in good running condition, but don't throw a lot of money into it. Just wait a few years and save your money, then decide if you want to build your 302 or put a 360 in it's place. A 360 will bolt up to a C6 right?