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#1 |
Registered User
![]() Join Date: Feb 2008
Location: Omaha, NE 68144
Posts: 333
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LT1 & Radiators
I have a question for anyone that did a LT1 swap in their truck. I'm swapping a LT1/T56 into my 68 C10 & need to know if I can use a 67-72 4-row radiator with this setup? I'm aware that the LT1 has reverse flow cooling so wondering if this will have any impact on the radiator used?
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Bryan '52 Bel Air 2dr HT - in pieces '68 C10 - 6cyl/4spd REMOVED, LT1/T56 to be installed “Any society that would give up a little liberty to gain a little security will deserve neither and lose both.” - Benjamin Franklin "And those who know what's best for us, Must rise and save us from ourselves" - RUSH lyric (mockery) |
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#2 |
Registered User
Join Date: Dec 2010
Location: Apison Tn
Posts: 490
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Re: LT1 & Radiators
Subscribed to ur thread, always wanted to see an LT1 swapped into a C10
Posted via Mobile Device
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http://67-72chevytrucks.com/vboard/s...d.php?t=438550 ![]() ![]() 1994 Buick Roadmaster 1994 GMC Sonoma |
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#3 |
Registered User
Join Date: Oct 2008
Location: Marianna Arkansas
Posts: 7,270
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Re: LT1 & Radiators
You should be fine the reverse flow is eluding to the fact that the heads are cooled first instead of the block as in the earlier generations of smallblock motors, that helpthe motors make more power because the compression ratios could be raised without the fear of preignition or detonation or laborknock as some call it. Of course I could be wrong, and am remebering that from a dream I have had and not actual facts. If that is the case, someone else will help you outand let me know about it.
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#4 | |
Registered User
![]() Join Date: Feb 2008
Location: Omaha, NE 68144
Posts: 333
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Re: LT1 & Radiators
Quote:
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Bryan '52 Bel Air 2dr HT - in pieces '68 C10 - 6cyl/4spd REMOVED, LT1/T56 to be installed “Any society that would give up a little liberty to gain a little security will deserve neither and lose both.” - Benjamin Franklin "And those who know what's best for us, Must rise and save us from ourselves" - RUSH lyric (mockery) |
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#5 |
Registered User
Join Date: Jan 2011
Location: Chattanooga, TN
Posts: 2,151
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Re: LT1 & Radiators
I would use the car one. Much more efficient and the hose locations are different than the truck.
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'83 K20-TPI '73 C10 '79 C10-ex-diesel(SOLD) '07 Tahoe(Son driving) '14 Suburban-DD '71 C10-current project |
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#6 |
Registered User
Join Date: Aug 2009
Location: Bristol, SD
Posts: 8
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Re: LT1 & Radiators
I am working on the same project...I believe the outlets for the waterpump are different than the 67-72 radiator. You would have to come up with a special radiator hose...correct me if I am wrong...
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BBB 2005 Burb Z71 1995 Buick Park Ave Ultra 1968 SWBSS C10 |
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#7 |
Registered User
Join Date: Nov 2009
Location: maine
Posts: 2,315
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Re: LT1 & Radiators
Subscribed. I'm interested to see how the overflow tank, and hose routing for the LT1 will be done.
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1972 C10 Deluxe.Shortbed. 402/400. A/C, white interior, needs complete restore. Project Red, white and blue. Used to be a Longbed apperently. http://67-72chevytrucks.com/vboard/s...d.php?t=451950 1971 c10 step 250 3 OTT 1969 c30 TOW-MATER. 307 4 speed, holmes 440 body. http://67-72chevytrucks.com/vboard/s...d.php?t=451082 2006 CTS-V LS2 6spd. |
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#8 |
Just a car guy
Join Date: Feb 2006
Location: New Washington, IN
Posts: 991
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Re: LT1 & Radiators
Outlets are the same Its the LSX series engines that have the passengerside upper hose location.
Stock replacement radiator will be fine. I got an all aluminum version off ebay for less than $200.
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1955 belair Blown Pro Street cruiser 1971 Camaro Pro Touring 1973 Vega Drag Car 1970 C20 tow rig |
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#9 |
Registered User
Join Date: Aug 2009
Location: Bristol, SD
Posts: 8
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Re: LT1 & Radiators
Thanks for the correction...good info.
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BBB 2005 Burb Z71 1995 Buick Park Ave Ultra 1968 SWBSS C10 |
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#10 |
Registered User
Join Date: Aug 2012
Location: Junction City, KS
Posts: 782
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Re: LT1 & Radiators
I have done the LT1 swap in my 1969 GMC. I was trying to figure out how I was going to route the plumbing myself. I had bought a new 4Core Radiator when I first got my truck cause the original was a shot 2core. I decided I would keep the 4core and picked up several hoses and hose splicers. I turned the neck of the water pump to face the opposite direction and routed the hoses to work as the radiator outlets are opposite from a Camaro, Firebird, or Corvette radiator. As long as you get the system bled correctly, you will have no issues with doing it the way I have.
But, to make it easier. I would recommend that you just buy a radiator that goes in one of these makes of vehicles and put it in. It will make your life easier, rather than figuring out the correct sized hoses that you need to use. Good luck. |
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#11 |
Just a car guy
Join Date: Feb 2006
Location: New Washington, IN
Posts: 991
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Re: LT1 & Radiators
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1955 belair Blown Pro Street cruiser 1971 Camaro Pro Touring 1973 Vega Drag Car 1970 C20 tow rig |
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