LT1-LT4 Modifications 1993-97 Gen II Small Block V8

heater core question

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Old 04-21-2011, 07:02 AM
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i had a small leak coming from my flow control valve on my heater hose so i tried to replace the valve, in hopes it would solve my overheating issue(runs somewhere around 230, just before the 3/4 marker)
in the process i broke the piece off in the metal crimps so i decided to cut the hose and make a repair using some piping. the repair worked but caused a leak in the outflow heater hose. my question is, would it be a better idea to buy the heater hose set from GM and replace all the hoses and connections or could i simply bypass the heater core? if i were to bypass it, how would i do that? would it cause any problems initially or down the line? i have also been considering removing my A/C due to the fact that it blows only lukewarm air, no cold air. any known problems there?

anything will help!
thanks in advance
-RD
1997 Camaro Z28 LT1 6 Speed
Old 04-21-2011, 07:15 AM
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Originally Posted by kissrocker1200
i had a small leak coming from my flow control valve on my heater hose so i tried to replace the valve, in hopes it would solve my overheating issue(runs somewhere around 230, just before the 3/4 marker)
in the process i broke the piece off in the metal crimps so i decided to cut the hose and make a repair using some piping. the repair worked but caused a leak in the outflow heater hose. my question is, would it be a better idea to buy the heater hose set from GM and replace all the hoses and connections or could i simply bypass the heater core? if i were to bypass it, how would i do that? would it cause any problems initially or down the line? i have also been considering removing my A/C due to the fact that it blows only lukewarm air, no cold air. any known problems there?

anything will help!
thanks in advance
-RD
1997 Camaro Z28 LT1 6 Speed
Stock temps hover around 230 (with no cooling system modifications) so yours isn't out of the ordinary. You can bypass the heater core by connecting the hoses or blocking off the ports without a problem. Assuming you don't want your heat go ahead and delete it all.
Old 04-21-2011, 07:23 AM
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i was always under the impression that 200-210 was avg running temp?
where do you connect the hoses? is it actually a good idea? other than the fact of no heater, are there any other drawbacks? maybe poor coolant flow or something
Old 04-21-2011, 07:31 AM
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Originally Posted by kissrocker1200
i was always under the impression that 200-210 was avg running temp?
where do you connect the hoses? is it actually a good idea? other than the fact of no heater, are there any other drawbacks? maybe poor coolant flow or something
If you're looking to delete the heater core, just loop/connect the two hoses off of the water pump or block them off entirely. Pretty easy.

There will be no adverse effects on your cooling capacity.

Stock fans don't come on until 227-degrees (low speed) and 235-degrees (high speed).
Old 07-26-2011, 01:38 PM
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What could I use to block off the ports and does anyone have pics?I just deleted a/c and heat in my 93
Old 07-26-2011, 01:42 PM
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Pull the male ends out of the water pump body (they're just pressed in) and you'll be left with holes. Get a couple of round aluminum disks, just big enough to cover the holes with decent overlap. TIG weld them on. Clean, simple, and professional.
Old 07-26-2011, 01:46 PM
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Was hoping of a easier way.Do they make anything I could cap with without welding?
Old 07-26-2011, 02:03 PM
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you can cap the ends and clamp it. Ugly, but functional. Or connect the two together with a hose and clamp it.
Or, if you look at post #4 (ramair's post), it's spelled out for you.
Old 07-26-2011, 02:08 PM
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I have them looped now,just doing some reading and saw it was possible to cap the ports.what could I use to cap then clamp it?
Old 07-26-2011, 03:09 PM
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Another option is removing the fittings then tapping them for pipe threads, then install a pipe plug.
Old 07-26-2011, 09:26 PM
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Originally Posted by RamAir95TA
Another option is removing the fittings then tapping them for pipe threads, then install a pipe plug.
But welding's easier...and more fun!



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