283 V8 Specs

[Techhead]

Hello all,



So I finally got to pulling a few pieces off the 1962 283 I have in the garage that I am hoping to drop into my 1987 S10... Gonna be a long process...Does anyone know the specs of the 283.. here are the numbers I pulled off the engine.

Block # 3834812

Intake Manifold# 3840905

Heads # 3795896



Today I am off the the wreckers to find a \"few\" neded parts, like 2.8v6 motor mounts, exhaust manifold, power steering and power brake parts, brackets, maybe a carb too.. .the local wreckers is having a sale, all you can carry for 75 bucks!





Cheers! http://www.s10v8.com/images/smilies/icon_smile.gif

[ZR1BLAZER]

283-Inch Small-Block Chevy

The Quick Facts



By Marlan Davis

Photography: Marlan Davis

The 283/283hp fuel-injected engine was among the first of the American engines to dispense with carburetion and make 1 hp/ci. Under legendary Corvette engineer Zora Arkus-Duntov\'s tutelage and encouragement, a slew of factory and aftermarket parts were developed for the 283. With a large variety of parts available, it became easier and cheaper to coax horsepower out of a Chevy small-block than the competition\'s engines. More enthusiasts gravitated toward the \"easy to work on\" Chevys, which encouraged the development of even more parts--and so the Chevrolution became self-feeding.



Even after the 327’s debut, the 283 made such a good base engine that it soldiered on through 1967. With its short 3-inch stroke, a 283 can rev as if there’s no tomorrow, but the small bore restricts adding really large valves and, hence, ultimate breathing potential. Except for the Vette 283/315hp option, 283s never came with anything larger than 1.72-/ 1.50-inch valves. You can install only 1.94/1.60 valves without hitting the cylinder walls. The 1.9:1 rod/stroke ratio is on the high side for an acceleration engine but great for an endurance or oval-track engine that runs at a high, constant speed. However, there’s no getting around the fact that a 283 just gives up too many cubic inches (and too much torque). Unless you’re into nostalgia, restoration, or class racing, there is no real reason to build a 283 today.









Here are the essentials....





The 265 and 283 3-inch-stroke, small-journal crank has a perfectly round flange. The rare 1967 Z/28 302 3-inch-stroke crank has a round flange with one notch.





The cylinder heads used through mid-1959 have a staggered valve-cover mounting pattern.





The 1955-1957 265 and 1957-only 283 blocks have no side motor mount provisions.

[riotpolice75]

im curious as to what would make you put a 283 in an s10. thats alot of work for a little motor







smith

[rayL]

i agree with ole dude and riot. thats alot of work for a motor that barely out displaces a 4.3. I guess if its what you have then use it but i wouldnt sink any major money into it.

[Techhead]

wow thanks for the replies...



In response to the question why put a 283 in an S10....



I currently have a 4 banger engine and would like the v8 perfomance and ride, not to mention a betetr sound than the 4 banger, without having to stop at a gas station every 10 miles....



Is the 283 really a bad engine? I am not looking to hit the strip, just cruise...

[Techhead]

well the trip to the junkers was a succes I think.

I got:

Power steering box and pump from a 4.3 v6 blazer

Power brake booster (BK model)

2.8 motor mounts

and a set of Manifolds froma 350... the manifolds look right... but for some reason the passenger side looks \"long\" the back bolt hole has not wher on the head to bolt on to...

I was reading in the JTR manual that I need a cylinder head conversion plate... ever heard of that?



the shopping continues... so far my investimate is ...

283 motor = free

junk yard haulage today 75 bucks

jtr manual 30 bucks

long way to go but its a start

[riotpolice75]

put the 283 on ebay and get a 350. youre limited in every aspect of performance and parts with that small of a motor. yea, you want an 8 in your s10, but in my opinion, ultimately youll be let down.



youre a new guy. so you dont yet understand that me and everyone else on this site is right 100% of the time. to cite an example from the 305 post on the homepage





On 2006-01-10 05:50, Lin wrote:

I put 305 heads on my 350 block! after you all told me not to! you are were right. no power like a stock 350.





so you can clearly see that we are right 100% of the time. and by telling you not to put the 283 in the s10 and go with a bigger motor then we must be right.



am i right?







smith

[spacecadet]

The 283 is certinly a high reving motor. If thats all you got, use it. Down the road you can always upgrade. To make the most of the 283\'s power curve I\'d suggest a set of gears in the rear...say 4.11\'s. It will alow the motor to rev, thus helping to hide the lack of cubes. Assuming you already have the 4cyl, chace are you have the 4.11 in the rear already. You can get the g-codes from the data tag in the glove box. or the best way is you can check by pulling ther rear cover. rpo codes (http://www.c2e.info/rpocodes/MODERNGMRPO.html)



You can decode many sbc\'s.

mortec (http://www.mortec.com/castnum.htm)





Space

[Techhead]

Thx Riotpolice, I totally appeciate the comments and feedback from the folks on this site.



Although I think its all personal taste, I certainly dont wanna be dissapointed in the end.... so what engine do you recommend?

[redneckgames]

I would recommend anything from 327 and up. But if you have a 283 and dont want to spend alot of money right now go ahead and put it in. Like you said it will sound alot better. But if you dont want to go through the trouble of pulling it and swapping to bigger on down the road, then I would go ahead and sell the 283 and get something else. Just not a 305.

[smallblock283]

there is not a thing wrong with a 283 i have one in mine <not stock> and, yes i did spend a lot of money but it scares the woman, lmao she thinks it need a \"o\" shit bar when it come time to turn on . rev..... yes it does and fast better have your shifter on stand by cause it will need to shift fast b&m mega shifter is what i have and i like it you can call me about it 574-834-7073

[ZR1BLAZER]

On 2006-01-23 06:38, smallblock283 wrote:

there is not a thing wrong with a 283 i have one in mine <not stock> and, yes i did spend a lot of money but it scares the woman, lmao she thinks it need a \"o\" shit bar when it come time to turn on . rev..... yes it does and fast better have your shifter on stand by cause it will need to shift fast b&m mega shifter is what i have and i like it you can call me about it 574-834-7073



i agree. there is a guy here with a 91 ex-cab truck with a 283 in it. truck looks good, sounds good, and beleive it or not with out a ton of cash in the motor it runs high 14s. but again it wasnt built for drag racing. it was built for the purpose of haveing a v8 in an s10 and having fun. this guy has taken it to the track twice. but even with the high price of gas you see him driving every single day. i say go for it.

[Scotty_S-15]

Like everyone is saying, the 283 is a kick-ass motor.... BUT a 350 is also kick-ass, with 70 extra cubic inches. So as I\'ve said before, with a 283 you\'re at a 70 HP deficit before you even get started. (figuring 1HP/cu. in.)

[coppergmc]

If you want to be different, try the crank and rods from a L99, 4.3L, V8 that came in the 94-96 Caprice. You can put this crank and rods in a one piece rear seal 5.7 block with stock pistons and have a 302. Any basic 350 piston will work. If you use the 4 inch bore, you can run regular performance heads with \"big\" valves. Of course, there is nothing wrong with the 283. It just doesn\'t really have a big enough bore.

[Scotty_S-15]

Back in the \"day\", everybody punched out their 283 an 1/8\" to 302. (they were called 301s back then) On occasion there was a problem with that big of an overbore. .060 over was a 292, which is what the sissies did.http://www.s10v8.com/images/smilies/icon_razz.gif

......... BTW, that 283/302 yields the same 4\" bore X 3\" stroke as the Camaro 302s of the Trans-Am Race era.

[bratass]

Go with the 283 you will not be sorry they will rev for days and it doesnt take a lot of money to build it for more revs then add a set of gears and an oshit bar http://www.s10v8.com/images/smilies/icon_wink.gif

[coppergmc]

Try to find a set of closed chamber 305 heads like the 601s. They have 1.84/1.5 valves and 58cc chambers. With a 3 angle valve job, back cut valves, and pocket porting, they should be an improvement over what you have. You should be able to score a set cheap. Try an \"RV\" cam like 204/214 @.050 and an intake change. You can get a Proffessional Products intake for a song.

[smallblock283]

a set of vortecs and a set of .060 over dome pistons will work nice on the 283 remember 1.94 valves is the biggest you can use