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Radiator question?

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Old Jul 25, 2025 | 09:39 AM
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Gearhead1's Avatar
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Radiator question?

Are all the OEM radiator same cooling capacity?
Aware of the ZZP radiator and looks inviting….
Old Jul 25, 2025 | 09:52 AM
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Can't speak to cooling specs, but the 2.0 radiator was a different part number from the 2.2 and 2.4
Old Jul 25, 2025 | 10:37 AM
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Originally Posted by RJ_RS_SS_350
Can't speak to cooling specs, but the 2.0 radiator was a different part number from the 2.2 and 2.4
OK…I was wondering if SS had more rows flutes.
Old Jul 25, 2025 | 10:49 AM
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From the Owners Manual
Coolant System
2.2 engine 7.4 qt
2.0 engine. 9.2 qt
Old Jul 25, 2025 | 11:36 AM
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At least part of that coolant capacity increase on the 2.0 is in the turbo coolant system and the oil cooler system. These 2 systems also added heat to the overall cooling system, so either the radiator was a little bigger, or the different parameters for fan operation took care of the additional heat, or both.
Old Jul 25, 2025 | 12:02 PM
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https://zzperformance.com/products/z...diator-for-hhr

The ZZP aluminum radiator is double thickness of stock radiator, most likely 4 rows as opposed to two rows. The mounting tabs and transmission cooling ports are the same as are the upper and lower rad hose ports.
Now, is it worth the extra cash , depending on how much longer you plan on keeping your HHR
Old Jul 25, 2025 | 03:40 PM
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Originally Posted by Oldblue
https://zzperformance.com/products/z...diator-for-hhr

The ZZP aluminum radiator is double thickness of stock radiator, most likely 4 rows as opposed to two rows. The mounting tabs and transmission cooling ports are the same as are the upper and lower rad hose ports.
Now, is it worth the extra cash , depending on how much longer you plan on keeping your HHR

FOREVER….lol. If it will.

yes, I like the idea an looks of ZZP radiator
Old Jul 25, 2025 | 04:41 PM
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Thermostat housing without the surge port and rubber cap


Old Jul 25, 2025 | 05:03 PM
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Thanks….will check into that
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