need to know amount of hp/torque you can get out of 283 sbc. Is 325 hp attainable. Should i use aluminum heads or cast iron.
Thank You
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need to know amount of hp/torque you can get out of 283 sbc. Is 325 hp attainable. Should i use aluminum heads or cast iron.
Thank You
I forgot to mention I'm building a 66 chevy pickup and I want a different setup than the typical 350. I also have a 427 but I'm looking to drive the truck as much as I can, so decent gas mileage is a plus. Any help will be nice, I'm not totally sold on the 283.
Thanks
The 283 was a great rev engine. With your short 3" stroke you could really wind them out but the heads were small and with the lack of CI you couldn't really build them up. Of course this is my opion but the largest 283 made was for a vette and it was 315HP. Your better off with a 327 or 350.
so that must mean bigger heads is out of the question??????? what i find truly funny is when people give credit to 305 builds but not 283's HA senseless, you have a pm sc454
305's are a bit more common engine, 283's are scarce... Some good aluminum heads sized and flowed correctly for the 283 would probably help a lot... As with any short stroke, high winder cam selection and a valve train that will stand up to high rpm's is essential for performance applications. I know, the old parts work, but that's just it, they're old parts..... Take advantage of the new technology and realize even more poential out of the mouse motors.... I like my Blue Oval 289's, too. It's just that I know I can produce more torque and have a much more streetable engine going with a long arm, long rod 408 and have better street manners then I would with a roller cammed, ultra lightweight everything 8500 RPM small cuber....
Old pickups are heavy, takes torque to move them...... 283's are probably more better suited for lightweight cars with 4 and 5 speed transmissions so you can keep the rev's up and stay in the power band.... Not a put down on small engines, just a fact.
I run a 305 in my chevy and had it bored out to 315 ci which gives me a better chance of larger heads. What I meant on the 283 was it was and is still a good engine but not one that you could realy build up to the HP you want. I had one in my 56 chevy and I loved it and it was rated at 240HP and I blew the doors off many cars because I could wind it up to 6500rpm with no valve float. I truly loved that motor but went on to better thing like a 348.
I am not sure I would use the term "torque" when refering to a 283.Quote:
Originally Posted by SC454
Aww come on Scooter, don't hide your answers in a PM. You're among friends here. All of us understand that you have built some very fast 301's and respect you for it.Quote:
Originally Posted by gassersrule_196
SC454, here's the scoop. You can build a 283/301 that will scream, if you want to build horsepower in the upper rpm ranges. In order to get a 283/301 to work, you have to rev it. It's all a matter of passing air through the motor. "X" cubic feet per minute passed through a motor equals "X" horsepower. A larger motor (350/383) will pass the same amount of air at lower rpm's than a smaller motor will at higher rpm's. Now, if you have to run a smaller motor at higher rpm's, then you will also have to cam the motor to run at higher rpm's, which means that you will have to raise the static compression ratio so that the intake closing point on the cam matches the c.r. When you run the longer cam, you have a very soggy bottom end (any cam you choose has an effective operating window of about 3,500 rpm's, so it will be effective, for instance, from idle to about 4,200 rpm's or from 1,500 to 5,000 or from 2,000 to 5,500 or 2,500 to 6,000 or 3,000 to 6,500 or 3,500 to 7,000 or whatever) which means you have to run a very loose converter (if you are running an automatic trans) and a lot of rear gear. A four or five speed trans might be a better choice. With the exception of Scooter and a few others on this forum, most of us would counsel you to start with a larger motor so you could keep the revs down, use a more civilized converter and keep static compression low for use with pump gas. Now, that's not to say you couldn't build a screaming 283/301 to run on pump gas, I'm just saying a larger motor will be a better choice for doing what you want to do.
I just ran across this thread on another forum and thought it appropriate to post here......
http://www.hotrodders.com/forum/buil...evy-57753.html
i just felt a bit finicky today! :LOL:
In 1967 I built a .040 over 283 with 'Vette heads and a Duntov cam for my '54 Bel Aire. Good power at high revs, not much bottom end, but 4.11 gears and 14" tires made it work. For a while. When the 3-speed w/overdrive blew, I replaced it with a non-OD trans. The little winder didn't last the summer!
For what it's worth, I now have a 350 to put in it. 283 was the "hot setup" back when it was pretty much all you could get, but you can't beat cubic inches.
sure ya can, ya gotta know how to do it :D
Scooter, we know you like your 283, but they do not build large amounts of torque and torque is what it takes to move a heavy car..... Small inches and high revs work good in a light car with a lot of gears and a big number gear in the back. If you really want to have some fun with that mouse, go find a five speed, make fifth gear one to one and 1st about a 2.50 to 1, then run a 4.88 rear gear. Get the car weight down to the 2000 pound range and you can do some serious whooping on the 350's. (go to a 9" rear and I'll let ya run a set of my 6.50's!!!!!)Quote:
Originally Posted by gassersrule_196
I can build a 283 that will make good low-end torque I will just bolt on a 150 shot of n20 then it will run about like my 383 engines.:D :whacked:Quote:
Originally Posted by gassersrule_196
hasnt anyone ever heard of the 402 stroker kit for 283's ????????
The problem with building the 283 you want involves streetability. The more horsepower adders you put into it, the less streetable it will become. A 283 with 325 hp will have a very lumpy cam, no bottom end, and you will fight it at every stop light, and on top of that, your mileage will be crap. Now, to get 325 hp out of a 350 would be a piece of cake, and you would have as much streetability as your stock 283. Some things just cannot be, and you have to be willing to give up something in order to get something. On top of that, a 350 will be less expensive to build. To me, there is no question what to do.
gasserule I let you a pm
Thanks
Scooter,Scooter,now why would we want to put a stroker kit in a 40 year old 283 block.Quote:
Originally Posted by gassersrule_196
Yes,I remember dad talking about trying to do this back in the early 70's.
I think he might of mentioned this back even in the 80's.
no erick erick erick what ever happened to diversity? you just dont belive me do you? these 40 year old parts still work for me and ALOT of drag racers/hot rodders 90% of the people at our local track run 60's 70's iron head,s when gm makes a new 283 i will be happy but guess what, there not going to! and until aftermarket heads are well under a thousand they are still not going to be cheaper then old ones fixed up. how many times do i have to turn blue to do this! and about them not being streetable whoa where did that come from? my dads old motor that he had when i was younger was a 301 with cast 11:1's 291 heads 1.94 1.6 ran 13.1 very consistently with a holley 600 and it was the most streetable car ive ever ridden in! i am saying that 325 in a 283 is streetable yes! and erick, if you going to keep complainging to me about cubes and power go build a dang big block and quit yelping :LOL: :P and youg uys must be driving some ehavy cars to be complaing about torque like you do! :LOL:
I think you need to go for a ride in one of my customers cars that has a 383 that makes over 515 foot pounds of torque at 4,000 rpm's and 510 hp at 6,000 rpm's all on pump gas.Quote:
Originally Posted by gassersrule_196
That car will give you a good idea of what a 383 will pull like.
I'll chime in on why I built my 283. It is what I had! It is a std bore 58-60 impala block with steel crank. Built in 1969 before i was born and parked in 1975 then I bought the 55 - three years ago. I had the complete engine, I just put new rings in to start with. It has just enough power for what I want which aint much, but.
Was looking at the new Hot rod (or one of them) mags the other day and was reading the top engine builders challange, didn't read the details but our poor old SBC's came in somthing like 23rd place with somthing like 505 hp. The top 10 or better were all SBF 433's with over 700hp on the #1 build. Like I said, i didn't read into the article but assumed it was a budgeted contest to see who could make the most power. BBC was in there somewhere in the top 12 i think, but SBF's took top spots. It may have also been some cube rules to since I did not see anything like the 454 or larger BBC or any big cube BBF.
They did not build any 283's.
I would not believe everything you read in those "comic" books.Quote:
Originally Posted by chevydrivin
Yup, most of the articles I've seen in the rags the last few years should start with "Once upon a time" like all good fairy tales. I think the information available on the internet and through sites such as CHR have turned a lot of the car rags into little more then fireplace fodder.... I guess the powers that be at the publishers seem to believe that whoever makes the most exhorbitant claim or verbally drools over the latest fad the most is going to be the best selling mag!!! Hot Rod Magazine used to be THE source for information and specifications, now they seem to sell out to the highest bidder for endorsement of the latest trick of the month club parts that come out!!!!
ive ridden in ls6 454 chevelles, 442's, and buicks, those are torqe monsters and they were fun, no sbc can compare to a big block with the same amout of money torque wise, isnt that why we created big blocks :LOL: but hey im always up for a ride in a hot rod, no matter the motor! cause its still fun where its a slant 6 or BBC
i have a 283 bored 0.60 with tbi, 700r4 in a 65 c10 it has pletty of power. It out run's my brother's 360 easy. Go with the 283 be different.
Would that 360 be a Mopar,a Ford 360 or a 350 Chevy with an over bore????;)Quote:
Originally Posted by chevys283
probably all of thee above ! :LOL:
I disagree with the fact the a high H.P. 283 so to speak is not a streetable engine. I do run a 283 that puts out around 315 h.p. and I drive it whenever I can. It runs well and is very dependable. Does have a nice sounding cam, mileage varies 13-17 in a 55 Chevy(M-21--3:70 gears) depending on how I drive it. I built the motor 13 years ago and has been trouble free and runs with the 350's out there. All depends on what you want. Could have built a 350 but I had the 283 at the time. Would probably do it again. Great discussion though.:D
I like a 283 too.Quote:
I do run a 283 that puts out around 315 h.p.
It also is what I currently have to work with.
Please post more specs on your engine.
Thanks - Bert
it was a dodge 360 with a 4 barrel in a d100 with a 4 speed A833.
:d .............................................................