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Discussion Starter · #1 ·
hey i got an 87 s10 recently & thinking of doin the v8 swap ive got the bottom end of a 283 so i was wondering about what i could except for horsepower/torque & gas millage if i took the 283 bottom end & put 350 heads & intake with a 2barrel carb on it & yes it would all be rebuilt & would have a power glide trans & One more question what would be a good gear for the rearend 15in wheels tires are prob gonna be 225/75 but if you can help me with any of it it would be great if i didnt give enough info lmk thank you very much
 

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You have a real good chance of putting together a 1987 S-10 with the performance of a stock 1957 chevy station wagon, or worse.

You need to provide us with the following:
Budget
What do you want to do with this thing? Just drive it or drag race?
Casting numbers/ part numbers on heads, pistons, what intake, and carb you intend to use
Experience level

Generally, "350" heads are too large for a 283. MOST 283s are happy with 58cc chambers and 170 runners
That powerglide is a slug for a street car; you need more 'gears' to help the engine make torque off the bottom to pick your truck up and move it. a TH350 or TH200-4r/ TH700-R4 is MUCH better for what you're doing most likely. You need 3.73 rear gears or MORE to get a performance oriented 283 to make power. Heres a basic recipe:
262H is a good cam to start with, with 3.70 gears and say rebuilt 305HO heads, with flat top pistons and proper head gaskets. a 650 carb would be fine, on a performer RPM intake. This will not win a lot of races, but it'll rev nicely, sound good and in a light car its a fine cruiser.
Or you could buy a vortec crate motor (longblock); add a vortec intake and a 650 carb and beat this 283 to death
 

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Discussion Starter · #4 ·
more info

ok very little money just lookin to do a stock rebuild on the bottom end maybe alil bigger cam to match the heads & intake but it would most likely be stock 350 heads & intake just a daily driver dnt really need alot of power just dont really want to keep the 4cylinder thats in the truck never planing on drag racing just want to say it has a v8
 

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Wrench Turner
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If that's your purpose & power is not you goal,you would be just as well to cleanup & redo the 283 heads,especially if they are the powerpak heads,with a 650 carb & headers w/ a good exhaust.If you need a set of heads,the 305 HO heads would work better.350 heads are gonna need machine work to work properly & not shroud the valves.If the 283 is all you have to work with,or,it's just what you wanna do,then by all means go ahead.If however,you are thinking it will fit the S10 better due to size,it won't.Any SBC engine is gonna take up the same space,a 305,307,350,or,stroker 383 will just as easy to adapt.
 

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Discussion Starter · #6 ·
joker thanks

i was just wondering what it would do cause i have the bottom end of the 283 no head or intake & i have plenty of stock 350 heads & intakes so was just wondering if it would work cause dont have much money & that would be my cheapest way or doing the v8swap
 

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the cheapest way would be to find a running complete 350, and the trans from a 4.3L S10, preferably auto as they last longer.

you can buy a running 350 for less than $500, you can't rebuild a 283 for that. try to sell the 283 or even just cash it is for scrap value.

Just because you have parts on hand does NOT mean they are worth using or that they are the cheaper route to go- often its just the opposite.
 

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Discussion Starter · #8 ·
ok my original point

so if the 350 heads wont work but 305 will if i had a set of 305 stiock heads what whould the power be & what would be a wild guess on what i could exp[ect for mpg even if the 283 isnt the best choice nor the cheapest to go in the truck thank you
 

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Wrench Turner
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Depending on which 350 heads you have,will determine how much work would be needed.You may be able to do some swapping with somebody looking for a set.Your intakes will be OK as long as you don't get Vortec heads.305 heads are easy to come by & usually fairly cheap.Call around to some shops.Alotta times you can find a rebuilt set that were never picked up for the cost of the rebuild.You also may find someone who needs a 283 for a specific era/model that would do some trading,or,buy it so you could get you better suited motor for your app.The 283 is a good engine ,but,I think by the time you get it all together,your gonna have alotta money tied up in less performance & durability.
 

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The powerglide is going to kill your around town mileage and you never told us what rear axle ratio you have. Powerglides have no overdrive and only low and high gear. This transmission was a great trans, for specific applications; but because it doesn't have a deep 1st gear, it makes your engine work harder to move from a stop. Also, without overdrive, no mileage help there either.

I say sell what you have and look for a 305 or 350 with 700r4 from a 2wd pick up truck or station wagon etc.
 

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Wrench Turner
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If that 283 needs a bore job & pistons,you are lookin @ a good chunka change for a rebuild on it.Are the bores stock on it now?
 

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Discussion Starter · #15 ·
thank you joker

i may have a set of 305 heads or my uncle has a 305 might just buy it or i have a 4.3 vortec v6 out out a newr s10 that needs rebuilt may just do that was just lookin to improve over the 100hp 4cylinder thanks everybody
 

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Discussion Starter · #17 ·
m

i guess i shouldnt have said cheapest would of just been easiest since i cant save money but honestly i dont know if the motor is any good i was just wondering before i pull it out from under a barn
 

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I took a engine machining class and was the only one building a 283 because I was given the engine. The cost for parts for a 350 is far less than for a 283. The machine work is all similar. I haven't fired up the 283 yet but I believe it will be a pretty high reving torquy little engine. It has reworked power pack heads with some porting. I am trying to sell it but have had no offers. I had a rebuilt 283 bored to 292 in a 64 GTO when I was a kid and it was pretty fast and got 18 mpg with Qjet. It had a mild cam and was blueprinted and balanced. It was set up to race. I which I still had it.

If I were you I would either get a running 350 or spend your time and money rebuilding a 350. The 283 although a nice engine will cost more and will not develop the hp you need.
 

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Summit sells a set of 2.02 heads with 54 CC chambers(Im not 100% sure they are 54 cc).You can make a 283 go but any other engine would be a lot cheaper.
 
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