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BBC cooling

crocks32

New Member
I'm running a ZZ454, alum. headed, roller cam in a 27 Track "T" roadster. I guess when I bought it I inherited this problem, now I,m trying to solve it. Anyone else having a overheating problem?
 
Big engine requires big radiator and high flow fan. Because of limited size restrictions, you might want to give Champion Cooling Systems a call to see what they recommend. You can look them up on the net for their phone number. If you haven't already done so, check your thermostat. Run the engine without one and see if it still overheats. It's also might be possible that when the engine was built, the head gaskets were installed backwards restricting coolant flow. I do not know if this can even be a problem with your engine, but for some it is [my Ford 302].
 
Big engine requires big radiator and high flow fan. Because of limited size restrictions, you might want to give Champion Cooling Systems a call to see what they recommend. You can look them up on the net for their phone number. If you haven't already done so, check your thermostat. Run the engine without one and see if it still overheats. It's also might be possible that when the engine was built, the head gaskets were installed backwards restricting coolant flow. I do not know if this can even be a problem with your engine, but for some it is [my Ford 302].

If you run without a thermostat, cut the guts out and put the housing back in. Without it the water flows to fast.
 
hi, i have a 455 olds in mine, with a 67 mustang rad, and last year it would over heat after about 1/2 ahour of driving any speed,changed the carb, back to the proper size cfm and this fixed the over heet problem,maybe this can help you tks rick
 
1) Coolant. Antifreeze is not a good coolant. Distilled water plus a bottle or two of Red Line Water Wetter will drop the temp.

2) Flow rate. It's an old tech myth about too much flow. The faster the better; a high-flow water pump will help.

3) Air flow. Like the water, the more the better. Electric fans can save you in a summer traffic jam.

These are all tricks I have verified and use on my blown injected SBC.
 
what do you have for a radiator in that Track T? I'm guessing it is not very big to fit in the track nose. I'd say go with a Walker Cobra Z radiator and it should cure your problems. You can try all kinds of fixes, themostat, hi flow waterpump, antifreeze, fan and/or shroud, etc.... but it really depends on what you have for a radiator cooling that BBC.
 
I'm running a ZZ454, alum. headed, roller cam in a 27 Track "T" roadster. I guess when I bought it I inherited this problem, now I,m trying to solve it. Anyone else having a overheating problem?

You may want to make sure the fuel pump you have is suppling enough fuel to the carb all the time. I run a blown big block chevrolet and the fuel pump decided to not supply full fuel pressure/flow and nowhere near enough fuel to the carbs, causing an extremely lean condition, after the pump ran for 15 minutes, and that raised the water temp. Here is how my car would react to this,
1st at a cold start it was fine, drive the car for 10 minutes and it would run 190 after another 2 minutes it would climb to 200, then 210, then 220 and yes one more # 240 just like that, I shut the engine down at 240. I did a pressure test on the cooling system and it held 25 psi for 2 hours (thinking I had a head gasket out), and I also used a tool to pull vacuum on the cooling system and filled the cooling system with it (thinking I had an air pocket in the cooling system).I will now have the fuel pressure gauge mounted by the boost gauge on the back of the blower. Just food for thought, because it took me a while to figure this one out.

Chad
 

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