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**'68OrangeSunshine** · 05-15-2018, 06:17 PM

A compression check and /or a leak-down test would show up a leaking cylinder.

Do you still have the OEM L6 radiator? The V8 radiators are wider and will have more cooling surface. [I'm not even sure if the old school L6 radiator width is even still available?] If you have to replace the radiator, go with the V8 unit. You will only have to move the upper and lower passenger side radiator brackets, and make sure the lower radiator hose fits. For me it was a desert survival upgrade. Too high a coolant/water mix can give higher temps, add more water.

I never heard of not using resistor plugs and wires on a points ignition set-up. Pure hogwash.

05-15-2018, 06:17 PM	#10
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,063	Re: 69 chevy 250 head replacement A compression check and /or a leak-down test would show up a leaking cylinder. Do you still have the OEM L6 radiator? The V8 radiators are wider and will have more cooling surface. [I'm not even sure if the old school L6 radiator width is even still available?] If you have to replace the radiator, go with the V8 unit. You will only have to move the upper and lower passenger side radiator brackets, and make sure the lower radiator hose fits. For me it was a desert survival upgrade. Too high a coolant/water mix can give higher temps, add more water. I never heard of not using resistor plugs and wires on a points ignition set-up. Pure hogwash. __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.