Quote:
Originally Posted by andyh1956
I believe ya bro! I did the same on my junky s10 I drive to work! But now the engine temp is a tad hotter! 
But them 4.3s are tough, right?  |
If the return from the heater runs to the radiator you can get away with bypassing the heater core directly to the return using a second valve... close the heater off and open the bypass valve. Since the heater isn't a radiator with the airflow bypassed you should gain back the summer engine cooling you're missing from completely shutting off that coolant flow.
Honestly if you're not overheating by blocking the coolant flow you should be able to install a bypass valve no matter where the return hose runs.
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1959 M35A2 LDT465-1D SOLD
1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8
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