ls1 swap radiator
#1
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Car: 89 Camaro rs
Engine: LS1
Transmission: T-56
ls1 swap radiator
Im trying to figure which way to go with a radiator that will fit into an 89 camaro. and what should i do about the coolant vapor lines?
#2
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Car: 86 TA, 91 B4C
Engine: 5.3, 4.8
Transmission: 4L80 4000, T56
Axle/Gears: 4.30 M12, 23.42 10 bolt
Re: ls1 swap radiator
I am using a stock radiator with both of my swaps and i use a T fitting in the heater hose to run the cross over tube into.
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Stock 3rd gen radiator, put the vapor line to the heater return fitting on the radiator tank below the cap.
#6
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Re: ls1 swap radiator
Holy ancient thread batman! So many out there seem to favor the T-fitting into the upper radiator hose or drilling and tapping the water pump itself. I've been emailing back and forth with Kurt Urban who makes a really nice kit for the steam vents and he says that the best place to run the steam vent is to the radiator below the cap area where the radiator fluid is being pulled into the motor to help create a vacuum effect and pull the fluid down. He did say the T-fitting was "ok" and better than not running anything. I've only found one company that makes a radiator that fits a third gen (Supposedly anyway) that offers the steam port, BRP hotrods, but it's $600. C&R and Griffin can both make a custom version but that's going to run near $1000 if not a little more.
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Re: ls1 swap radiator
I've been emailing back and forth with Kurt Urban who makes a really nice kit for the steam vents and he says that the best place to run the steam vent is to the radiator below the cap area where the radiator fluid is being pulled into the motor to help create a vacuum effect and pull the fluid down.
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
I should have said, "stock replacement 3rd gen radiator". The fitting was used in later years with the heater control valve to shut off flow to the heater core in max AC mode. The aftermarket prefers to stock parts that fit as many applications as possible. So, even though my car didn't have that valve, the aftermarket replacement radiator had the fitting. Much less than $600, cools my LS1 fine. As long as you aren't doing a power adder on the 6.0, it should be fine, too.
#10
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Re: ls1 swap radiator
I should have said, "stock replacement 3rd gen radiator". The fitting was used in later years with the heater control valve to shut off flow to the heater core in max AC mode. The aftermarket prefers to stock parts that fit as many applications as possible. So, even though my car didn't have that valve, the aftermarket replacement radiator had the fitting. Much less than $600, cools my LS1 fine. As long as you aren't doing a power adder on the 6.0, it should be fine, too.
#11
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Re: ls1 swap radiator
I should have said, "stock replacement 3rd gen radiator". The fitting was used in later years with the heater control valve to shut off flow to the heater core in max AC mode. The aftermarket prefers to stock parts that fit as many applications as possible. So, even though my car didn't have that valve, the aftermarket replacement radiator had the fitting. Much less than $600, cools my LS1 fine. As long as you aren't doing a power adder on the 6.0, it should be fine, too.
#12
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Re: ls1 swap radiator
I should have said, "stock replacement 3rd gen radiator". The fitting was used in later years with the heater control valve to shut off flow to the heater core in max AC mode. The aftermarket prefers to stock parts that fit as many applications as possible. So, even though my car didn't have that valve, the aftermarket replacement radiator had the fitting. Much less than $600, cools my LS1 fine. As long as you aren't doing a power adder on the 6.0, it should be fine, too.
1992 Firebird Replacement Radiator
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Re: ls1 swap radiator
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Re: ls1 swap radiator
I don't have the car to look at right now, tried to find a photo. It's a little grainy (all I had was a cheap digital camera back in 2010), and the fitting is actually closer to the top of the tank as was recommended. It's between the overflow hose and the cooler line.
The steam hose has an adapter in it to go from the small steam line from the engine to the larger fitting on the radiator.
The steam hose has an adapter in it to go from the small steam line from the engine to the larger fitting on the radiator.
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Car: '89 Firebird
Engine: 7.0L
Transmission: T56
Re: ls1 swap radiator
Pressure at the engine will move air & steam to the radiator. Water column in the radiator will reduce pressure differential and slow the air purging process so the higher the hose at the radiator the better. I have no idea if there is a height where the line is crossed between moving air and not moving air. Could be, I just don't know.
I have a manual transmission so I drilled through trans cooler at the upper port of the radiator and used that for the steam line. My own experience is that it works so good that the system will darn near 100% air bleed itself with the car sitting in the garage for a few days. I had to add just a little bit of coolant after running the car the first time. https://www.thirdgen.org/forums/ltx-...ml#post6007530
Regarding radiator, a typical LS engine doesn't need a lot of radiator so a stock 3rd gen radiator is usually more than enough. I have an overside 3-core Modine radiator that I bought when I had the big block and it is way over kill for my LS. My engine exceeded 210F only once during hours of back to back dyno pulls during engine tuning. The shop said it was amazing how my engine never got too hot.
I have a manual transmission so I drilled through trans cooler at the upper port of the radiator and used that for the steam line. My own experience is that it works so good that the system will darn near 100% air bleed itself with the car sitting in the garage for a few days. I had to add just a little bit of coolant after running the car the first time. https://www.thirdgen.org/forums/ltx-...ml#post6007530
Regarding radiator, a typical LS engine doesn't need a lot of radiator so a stock 3rd gen radiator is usually more than enough. I have an overside 3-core Modine radiator that I bought when I had the big block and it is way over kill for my LS. My engine exceeded 210F only once during hours of back to back dyno pulls during engine tuning. The shop said it was amazing how my engine never got too hot.
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Car: 1985 Camaro sport coupe
Engine: was 305H, 2002 Camaro LS1 now
Transmission: 4L60E
Re: ls1 swap radiator
I didn't want to drill into the water pump I bought the upper hose tee. I used the 4th gen fans with the 3rd gen radiator. I cut an upper 3rd gen single fan shroud to fit.
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