rebuilding my 283

since 1983 · Poncho Master!

rebuilding my 283

jonathanD · Poncho Master!

2500 will be more then enough if you get a camshaft with a really good set of lifters and a intake /carb i think you could get 300 without modifing the heads. but change the exhaust that will make her pur real nice with mine im going with a 0.30 over bore because it's the same price for as .10 over so i was like hellz yea lol just from the bigger pistons the shop said i would get somthing like 14 more Horse power

4SPEED427 · A Poncho Legend!

Chances are it will need bored...

Don't go too crazy on a cam. If you want the old school musclecar sound, use the L79 327 cam.

Aluminum intake with a not-too-big carb should work nice.

since 1983 · Poncho Master!

what makes you say that Carl ??? i fugure thats the usual scenario !

i guess you can t tell t il i ts open

what size carb are we talking ?? i ts has to balance out with the cam in question.

an L 79 cam in a 283 ?????

cant wait to get this done and fire her up !!

-- Edited by since 1983 on Monday 21st of March 2011 01:00:51 PM

-- Edited by since 1983 on Monday 21st of March 2011 01:01:45 PM

4SPEED427 · A Poncho Legend!

The old engines seemed to wear out enough in 75,000 miles to need boring. I am guessing part of it may have to do with how much grit was in them compared to now with our unleaded fuel.

The combustion chambers are spotless in the new ones at 150,000 miles.

since 1983 · Poncho Master!

yup times have changed .................this car clocks 84000 miles , so.........i guess we will give it a 10 thousand

so i also have to choose pistons ans rings

what do you think about my budget ?????

-- Edited by since 1983 on Monday 21st of March 2011 01:06:39 PM

jonathanD · Poncho Master!

since 1983 wrote:

yup times have changed .................this car clocks 84000 miles , so.........i guess we will give it a 10 thousand

so i also have to choose pistons ans rings

what do you think about my budget ?????

-- Edited by since 1983 on Monday 21st of March 2011 01:06:39 PM

it still works trust me i found a kit where im getting almost everything even over sized pistons and rings for under 400 bucks =) just search around a little you will find what you need

since 1983 · Poncho Master!

jonathanD wrote:

since 1983 wrote:

yup times have changed .................this car clocks 84000 miles , so.........i guess we will give it a 10 thousand

so i also have to choose pistons ans rings

what do you think about my budget ?????

-- Edited by since 1983 on Monday 21st of March 2011 01:06:39 PM

it still works trust me i found a kit where im getting almost everything even over sized pistons and rings for under 400 bucks =) just search around a little you will find what you need

i know they are cheap to rebuild , my engine guy is gonna take care of that

he knows what to buy.

tin indian · Poncho Master!

i agree with carl. you will prolly need to have it bored, your budget is really high, so since you can spare it, have your heads ported and polished to pick up those extra ponies. an airgap or performer intake is great for your app. summit makes an awsome 600 cfm double pump, vac secondary for $250., and the l79 cam is a decent option.all this and your hei distibutor and you should be good for around the 300 hp mark you can also check into a thinner head gasket to raise your compression a bit.

-- Edited by tin indian on Monday 21st of March 2011 01:31:47 PM

since 1983 · Poncho Master!

tin indian wrote:

i agree with carl. you will prolly need to have it bored, your budget is really high, so since you can spare it, have your heads ported and polished to pick up those extra ponies. an airgap or performer intake is great for your app. summit makes an awsome 600 cfm double pump, vac secondary for $250., and the l79 cam is a decent option.all this and your hei distibutor and you should be good for around the 300 hp mark you can also check into a thinner head gasket to raise your compression a bit.

-- Edited by tin indian on Monday 21st of March 2011 01:31:47 PM

sounds simple a i might need to spend less ,GOOD !

L 79 cam and a 600 cfm double pump heads ported

thanks guys......................any other suggestions ??

ohhh yes i forgot.......what about keeping my orig exaust manifolds

could that be possible , can i port those for better flow ?????

-- Edited by since 1983 on Monday 21st of March 2011 02:31:22 PM

4SPEED427 · A Poncho Legend!

I would use a 600 vacuum secondary, that is plenty for a 283 street engine.

I hear they can extrude hone manifolds but it's pretty expensive. No other good way to port manifolds.

since 1983 · Poncho Master!

depending how much i t coste to hone them , but i can imagine

i guess sandblasting the interior as much as i can would do

what is your opinion on keeping those ( for the orig look that s for shure ) i can still get my 300 + hp if i keep those in place ??

tin indian · Poncho Master!

you should be able to get 300 with the manifolds

4SPEED427 · A Poncho Legend!

I like manifolds. Pretty trouble free.

tin indian · Poncho Master!

Carl Stevenson wrote:

I like manifolds. Pretty trouble free.

x2

since 1983 · Poncho Master!

good !!!! theres one thing taken care of

thank you

Stephenzone · Canadian Poncho Superstar!

bored my (66) 283 30 over, figuring 5 years ago. with hei, ram horn exhaust into duals, and vintage eldebrock intake, 600 was too much carb. i've since then replaced the intake with a 65 4 barrel intake off a 327 using a 4g rochester carb. very streetable plus will run up through the gears nicely. cam was 280 lift with 280 duration with .420 valve lift.

ak 67sd · Poncho Master!

I'll throw in my 2 cents... you will have to work a good combo to pull an honest 300hp out of that engine, the exhaust manifolds will hold you back as well. But given your constraints, I'd look into some camel hump heads (1.94 intake not 2.02!) or if you are willing to go to newer technology there are some 305ci heads that are really good for a 283 -hardened seats, bigger valves and small combustion chamber -601, -801, -416, -450. You will want to keep the combustion chamber smaller than 60cc so you don't kill your compression. I would get into newer technology for the camshaft, like the Comp xe250h or bigger with a lunati voodoo 60102. Your stock powerglide will have no problem with 300hp... but upgrading to a TH350 would be better to help that little motor get out of the hole, a 2500 stall and 3.73 or steeper gears... a 500-570 carb -vacuum secondary- will be plenty on a performer intake (grind off the lettering and paint it orange!).

If you are really ambitious and can find one, put in a 327 crank for 307ci!

ak

kbell6987 · Veteran Member

i love that your sticking withe the 283 powerglide set up it becoming more rare and i think it keeps some of the charicture of the car. big thumbs up !

goushdds · Addicted!

had a 650 cfm carb on my 283.......Boggggggg....switched to a 500cfm and it is a lot crisper!

since 1983 · Poncho Master!

kbell6987 wrote:

i love that your sticking withe the 283 powerglide set up it becoming more rare and i think it keeps some of the charicture of the car. big thumbs up !

yup i dont want to   go   to modern with mods   , i want to stick with the original set up

i might oversize just what i need to make it tight

ak 67 sd   you have good ideas , but it s briing the car in a another   era , got to keep the glide

i want to hot rod it like in the 70s or close to that

the   motor is comming out in a couple of weeks

-- Edited by since 1983 on Tuesday 22nd of March 2011 08:50:15 AM

ak 67sd · Poncho Master!

I ran a glide for a long time, i didn't mind it... the 3 speed had more "seat of the pants" feel... I know you want to stick to the period, but no one will know you have a 3 speed (there were 3 speeds in the 70's)... then to make that 283 sing, you could go 307 and a 4speed!! put some big gears in there and spin it to 8000!! The 305 heads, although superior, have accessory bolt holes which you don't want... so the camel hump 1.94's and have them shaved to 58cc combustion chamber is the way to go... I'll bet the exhaust manifolds will choke 20hp+

ak

p.s. i ran an "old school" 327 set up in my car, glide, 3000 stall, 4.56 gears, with a 70's gm off-road gen 1 cam (one step up from the lt1 solid). i also ran a vintage torker intake, on 461 heads w. a home port job and 2.02 valves, and 650dp carb. The car ran 13.6 in the 1/4...@3750#

goushdds · Addicted!

plus the whine of a glide gives a car special personality IMO!

59poncho · Poncho Master!

Im keeping my 283 original with the glide except for the aluminum intake (painted orange) and i kept the oil fill and downdraft pipe with a quadrajet on there. Now im not looking for horsepower though (have you seen the size of this car!!) but just with that 4-barrel on there it sounds mighty nice!!

jonathanD · Poncho Master!

59poncho wrote:

Im keeping my 283 original with the glide except for the aluminum intake (painted orange) and i kept the oil fill and downdraft pipe with a quadrajet on there. Now im not looking for horsepower though (have you seen the size of this car!!) but just with that 4-barrel on there it sounds mighty nice!!

my 283 with a 2 barrel sounded sweet lol... with no exhaust pipes lol well untill the starter went after the second start up and when i had a coolant hose blow up..... lol good times.... you can rebuild an engine to stock for cheap like my rebuild is costing me about 480 bucks lol thats with being bored 0.10 over and getting oversized pistons,rings camshaft and other things like frost plugs yes im even getting the crank resurfaced and the main journals resurfaced like im ending up with basically a brand new engine im just debating getting it hot tanked to add just to make it easy lol.. gettting back on track i agree with other people the manifolds will limit you but it will look good and make people thing it's stock still.

-- Edited by jonathanD on Tuesday 22nd of March 2011 09:18:58 PM

-- Edited by jonathanD on Tuesday 22nd of March 2011 09:20:37 PM