C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Mar 1, 2009 | 06:36 PM
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Default Cooling System

Just installed new heater core in my 69. I had the heater hoses bypassed for 24 months before I had the nerve to try to change the core. Does anyone know how many quarts of coolant I will need to fill the system. The car is a 350cu with 300 HP no air. Thanks
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Old Mar 1, 2009 | 09:33 PM
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Per the 1969 Owner's Manual, pg. 65: For cars with heater, Manual trans, std. radiator 15 quarts. Same with Heavy duty radiator 18½ quarts.
Auto trans, std. radiator 18 quarts, same with Heavy Duty radiator, 18½ quarts.
Footnote: Add one quart for surge tank where applicable.

Cheers,
Pete
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Old Mar 1, 2009 | 10:03 PM
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Default Cooling System

Thanks Pete
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