6 cylinder radiator question. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

In The Ten Ring · 08-21-2016, 04:28 PM

Definitely redundant but it's a slow day. I have the 250 6 cylinder and I want a new radiator (old one has some leaks).

Any negatives to going with a 3 or 4 row radiator? Will I have to change thermostats or water pump?

GRX · 08-21-2016, 06:00 PM

No negatives at all. Same stat & pump.

Did just that to my 250 powered c10 about a year ago. Switched bad stock radiator to a 3-row. Was out of a 69 GTO actually. Only minor differences. One thing I like about GM. Many parts interchange.

In The Ten Ring · 08-21-2016, 06:02 PM

Well that is good news, thanks. Now to get a radiator that isn't made of plastic.

firedemon · 08-21-2016, 06:53 PM

I used an 8 cyl radiator only thing had to change was lower hose top is the same the lower needed to be 4 inches longer because of it being a wider radiator

**'68OrangeSunshine** · 08-22-2016, 01:05 AM

If you're installing V8 radiator, you will have to move the passenger side upper and lower radiator support brackets out further.

In The Ten Ring · 08-22-2016, 01:24 AM

That's a good point, thanks. I should be OK as I am replacing my radiator core support with one from a 396 cu. inch engined truck. My core support was badly rusted.

08-21-2016, 04:28 PM	#1
In The Ten Ring Registered User Join Date: Jun 2013 Location: West Virginia Posts: 6,427	6 cylinder radiator question. Definitely redundant but it's a slow day. I have the 250 6 cylinder and I want a new radiator (old one has some leaks). Any negatives to going with a 3 or 4 row radiator? Will I have to change thermostats or water pump?

08-21-2016, 06:00 PM	#2
GRX Registered User Join Date: Jul 2010 Location: MD Posts: 1,937	Re: 6 cylinder radiator question. No negatives at all. Same stat & pump. Did just that to my 250 powered c10 about a year ago. Switched bad stock radiator to a 3-row. Was out of a 69 GTO actually. Only minor differences. One thing I like about GM. Many parts interchange. __________________ 1969 c-10 Step Side Long Bed. I-6 250cid = = 1969 Pontiac GTO hard top. 400, 4-speed.

08-21-2016, 06:02 PM	#3
In The Ten Ring Registered User Join Date: Jun 2013 Location: West Virginia Posts: 6,427	Re: 6 cylinder radiator question. Well that is good news, thanks. Now to get a radiator that isn't made of plastic.

08-21-2016, 06:53 PM	#4
firedemon Registered User Join Date: Jun 2015 Location: @ Posts: 890	Re: 6 cylinder radiator question. I used an 8 cyl radiator only thing had to change was lower hose top is the same the lower needed to be 4 inches longer because of it being a wider radiator

08-22-2016, 01:05 AM	#5
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,504	Re: 6 cylinder radiator question. If you're installing V8 radiator, you will have to move the passenger side upper and lower radiator support brackets out further. __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.

08-22-2016, 01:24 AM	#6
In The Ten Ring Registered User Join Date: Jun 2013 Location: West Virginia Posts: 6,427	Re: 6 cylinder radiator question. That's a good point, thanks. I should be OK as I am replacing my radiator core support with one from a 396 cu. inch engined truck. My core support was badly rusted.

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