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Stock Radiator with a 383 Stroker?

I have a camaro im droping a 383 stroker into. It was a 1986 305 carb Iroc 5 speed. Im going to an automatic transmission from manual so I will be running an external oil cooler because there is not one on the radiator. Do you think this will be ok for this setup? If it matters im running a good size stall converter, a big cam, 9.6:1 pistons. 350 block with a 400 crank.

The prob is that I don’t want to have to pay 300 dollars for a 2 row radiator with an oil cooler if I can get away with running the factory radiator and a good oil cooler for ~100 bucks. Anyone on here know anything about this kinda thing?

Generally you’ll have more cooling demands when you’re increasing performance over a stock motor.

You could look into an electric fan that pushes more CFM than a stock belt-driven fan.

That might be enough for it.

Just make sure you have an upper/lower fan shroud and have a clutch fan.

I had a belt driven fan for a while, slapped in a 3 core aluminum radiator with upper/lower fan shroud. Didn’t keep it that cool.

Placed a clutch fan on it, and the car would run 165-170* tops, where as before it would get to 210-220*

ps- get a tranny cooler too if you don’t already have one.

Is the trans rebuilt? That’s going to be a decent amount of power to throw at the stock 700R-4 if it’s worn out already

pss- check out www.thirdgen.org It used to be the leader of Thirdgens back in the day, I havent’ been on there in a long time, but you’ll get a lot of info on the forums there too

I have a built up turbo 350 that Im putting in to replace my broken t-5. The car currently has an alluminum radiator and a fan shroud. Im just wondering if you guys think that I can get away with running the stock radiator and just mounting a transmission oil cooler in the front. There is not a tranny oil cooler in the radiator that I have now since the car came with a manual in it.

Do you think I will be able to sit in traffic as long as I keep the electric fan on? There is no clutch fan.

My options are:

A) Run a new 2row radiator with oil cooler for $350

B) Buy a stock radiator for an automatic tranny for $100-$200

C) Run the radiator I have now, and install a good oil tranny oil cooler for $75-200

Im not going to be running it hard right now because I still have to buy subframe connectors.

I just want to drive it from point A to point B without it overheating.

If money is a concern I’d drive it as is for a day and see how it does. I’d also test it out in the driveway at home and let it idle (simulating if you were stuck in traffic).

Depending on the air temp outside you might be ok. In MD the past week we’ve had abnormally cool temps for being mid August.

I’d also put a 160-170* stat in there too.

[quote]elano wrote:
I have a built up turbo 350 that Im putting in to replace my broken t-5. The car currently has an alluminum radiator and a fan shroud. Im just wondering if you guys think that I can get away with running the stock radiator and just mounting a transmission oil cooler in the front. There is not a tranny oil cooler in the radiator that I have now since the car came with a manual in it.

Do you think I will be able to sit in traffic as long as I keep the electric fan on? There is no clutch fan.

My options are:

A) Run a new 2row radiator with oil cooler for $350

B) Buy a stock radiator for an automatic tranny for $100-$200

C) Run the radiator I have now, and install a good oil tranny oil cooler for $75-200

Im not going to be running it hard right now because I still have to buy subframe connectors.

I just want to drive it from point A to point B without it overheating.
[/quote]

simple answer.

mount an external tranny cooler and it will be no different than mounting a new rad. with an internal one.

now if you do not mount a tranny cooler you still wont overheat froim that,what would happen is you may end up lowering the life of the tranny fluid and cause slips and such.
you could even go without the cooler all together.

I wouldnt I would mount an external cooler and be done with it.

I can explain further why you wouldnt overheat by adding an auto trany if you like but Ill keep this short for ya for now

[quote]jehovasfitness wrote:
If money is a concern I’d drive it as is for a day and see how it does. I’d also test it out in the driveway at home and let it idle (simulating if you were stuck in traffic).

Depending on the air temp outside you might be ok. In MD the past week we’ve had abnormally cool temps for being mid August.

I’d also put a 160-170* stat in there too.[/quote]

I’d second this let it ride for a day or so and see how it does. The turbo 350 trans is great for that motor they are tough as bricks. What kind of gears do you have in the rear end?

damn I dunno whats up with the site I think my post went throu.

anyways I see you have 2 issues that you want addressed.

1.swaping an auto tranny in and dont want that to overheat
2.stroking a 350 and making sure it wont overheat.

these depends on the power demands.
if all you did was add 400 internals to a 350 and turned it into a stroker then you are fine ith the stock rad. and no tranny cooler.

the stall on the converter dosent mater really you are noy pushing an insane amount of tourque thru that converter.

if you went the whole way and you have ported and polished aftermarket heads,aggressive cams,open pipes,bored a min of .30 over stroked to 383 4 bolt main to make sure it dont blow up then yes you would need an aftermarket rad. and I would add a tranny cooler and at min a rebuilt 700r4 with extra frictions and extra steels in the clutch packs.

what numbers are you putting down with this stroker?
edit:
I re-read your post and it looks like all you have is aftermarket internals.

you SHOULD be fine with the stock rad.
and BTW I own and operate a speed shop in my town and been building cars for most my life.

[quote]Nich wrote:
damn I dunno whats up with the site I think my post went throu.

anyways I see you have 2 issues that you want addressed.

1.swaping an auto tranny in and dont want that to overheat
2.stroking a 350 and making sure it wont overheat.

these depends on the power demands.
if all you did was add 400 internals to a 350 and turned it into a stroker then you are fine ith the stock rad. and no tranny cooler.

the stall on the converter dosent mater really you are noy pushing an insane amount of tourque thru that converter.

if you went the whole way and you have ported and polished aftermarket heads,aggressive cams,open pipes,bored a min of .30 over stroked to 383 4 bolt main to make sure it dont blow up then yes you would need an aftermarket rad. and I would add a tranny cooler and at min a rebuilt 700r4 with extra frictions and extra steels in the clutch packs.

what numbers are you putting down with this stroker?
edit:
I re-read your post and it looks like all you have is aftermarket internals.

you SHOULD be fine with the stock rad.
and BTW I own and operate a speed shop in my town and been building cars for most my life.
[/quote]

The motor is done all the way just about. I bought an eagle 383 kit that came with pistons, crank (machined), an rods and everything balanced. I started with a bare block 350 with a .030 bore. I have pro-topline heads, a radical cam, its a 2bolt main but ive studded it so it should not blow up.

ts already built and so is the th350 transmission that getting put in. The guy said it would handle like 700 horsepower. Im hoping on putting out 400+ hp and torque with this.

Ive spent close to 4 or 5 grand on motor and tranny I think throughout the past few years but if I can avoid spending 300 bucks on a radiator upgrade that would be cool. I know that I will have to run a tranny oil cooler regardless…

Heres a pic of the motor

heres the tranny


heres the car

[quote]jakshafter wrote:
jehovasfitness wrote:
If money is a concern I’d drive it as is for a day and see how it does. I’d also test it out in the driveway at home and let it idle (simulating if you were stuck in traffic).

Depending on the air temp outside you might be ok. In MD the past week we’ve had abnormally cool temps for being mid August.

I’d also put a 160-170* stat in there too.

I’d second this let it ride for a day or so and see how it does. The turbo 350 trans is great for that motor they are tough as bricks. What kind of gears do you have in the rear end?[/quote]

Yeah thats why I chose that particular tranny. Anyways im going to start off just running the stock rear end. I have another junky camaro that has a .456 rear in it with posi but I think those gears are too radical for street use. I was thinking about upgrading to a .373 posi in the future.

I guess that I could just buy a external cooler and try that first. If it dosent keep it from going in the red, I will just buy the nice racing radiator and run the cooler with that too. No point in not reusing the external cooler if I buy one right?

Its just that I could kill 2 birds with one stone if I buy the radiator first. But I could save 200 bucks if just a cooler works fine…

Pro Topline heads? You’re gonna love em. I had them on my 86 IROC. They were known as Pro Lightning then.

Couldn’t beat the price. You get aluminum?

Get a good temp gage, keep an eye on it breaking it in (you shouldn�??t be running it to hard anyway at this point), spend the money on cooling upgrades if it is getting to hot. Just my 2 cents.

Props on ditching the 305 boat anchor.

I say, for the money and time you are putting into this thing, spring for the extra money.

Although, I ran my stock radiator in my 76 pickup with a built 496 and never had a problem.

elano that machine is pure greasemonkey porn good job.

now I would say this as my personal choice.

I would go with stock right now,use your money and get the other things you need and save up for a slim high pro radiator and tranny cooler.
possibly from an lt series motor like the corvette.

or do it right and contact fluidyne and get a quote from them on your application.
thats where I get most all of my domestic rads.\

koyo is another place for my imports.

but ya you shouldnt get into any trouble with the stock one.

I have ran my truck with a 502 off the standard rad. from the orign. 350 that was in it with little problems.

I live in az with 110 degree heat also and I had some problems in summer and had to run 107 race fuel because of pinging but winter was perfect on 91 octane pump water.

i agree with the temp guage its cheap insurance.

just remember when you upgrade one thing the next thing in line will be weaker so you need to upgrade that too.

you have a new motor and trany now it will be running gears and axles and ect ect.

one last thing
I really dont think you actually need a cooler not yet anyways,save your money and do it up right or it may just nickel and dime you till you put more into it than you wanted.

[quote]DoubleDuce wrote:
Get a good temp gage, keep an eye on it breaking it in (you shouldn�??t be running it to hard anyway at this point), spend the money on cooling upgrades if it is getting to hot. Just my 2 cents.

Props on ditching the 305 boat anchor.
[/quote]

Yeah I was tired of getting beat by 1.8ltr hondas. Plus the old 305 leaks a little bit of everything out of everywhere lol.

I think ill just buy a good tranny cooler and run that alone. If i find that I need a new radiator, ill do what i have to.

Thanks a lot everyone!

[quote]Nich wrote:
elano that machine is pure greasemonkey porn good job.

now I would say this as my personal choice.

I would go with stock right now,use your money and get the other things you need and save up for a slim high pro radiator and tranny cooler.
possibly from an lt series motor like the corvette.

or do it right and contact fluidyne and get a quote from them on your application.
thats where I get most all of my domestic rads.\

koyo is another place for my imports.

but ya you shouldnt get into any trouble with the stock one.
I have ran my truck with a 502 off the standard rad. from the orign. 350 that was in it with little problems.

I live in az with 110 degree heat also and I had some problems in summer and had to run 107 race fuel because of pinging but winter was perfect on 91 octane pump water.

i agree with the temp guage its cheap insurance.

just remember when you upgrade one thing the next thing in line will be weaker so you need to upgrade that too. you have a new motor and trany now it will be running gears and axles and ect ect.

one last thing
I really dont think you actually need a cooler not yet anyways,save your money and do it up right or it may just nickel and dime you till you put more into it than you wanted.

[/quote]
haha Thanks
Your right, your never truely done. After that its better tires and bigger brakes, etc…
I already have a water temp gauge. I looked on thirdgen.com and it seems that everyone is either using a radiator with built in oil cooler or a big 11x12 external oil cooler, or both.

I just dont want my tranny to fry. The guy who built it said 1st gear would knock me out. I dont ever want to have to replace it. My radiator does not have an oil cooler in it so Im going to buy a 100 dollar one. If your 502 didnt overheat with the stock rad. I think I might be ok. 'Preciate the advice!