Thread: Big Block...safe running temperature?

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200 is not bad . you may want to play with water speed . i had a to 548 14.8 on the street my 572 and now 632 the boys at BECOOL still do not know how i do it with a stock 66 gto rad a many smaller hi cr engines that ran around that temp. i built/machined alot of bbc for others 200 in it self is not to bad as long as it stay there .you want as much timming as you can get off ilde this can help it run cooler BUT under a load you need to pull some timming out . i have played with bbc for 30 years now some bigger engines and more cr engine s are going to run warmer.