Reply to "oil drainback hoses"

Most guys don't use girdles on Clevelands, not even for racing. The main caps are beefy enough, and the large foot print stabilizes the caps enough, they are very resistant to squirming. Denny Wydendorf says he doesn't detect signs of cap walk with 2 bolt mains until 8000 rpm! I don't think Bill Gay intended the Cleveland to have 4 bolt mains, he made the 2 bolt lower end very beefy. The little outboard bolts added to the four bolt mains stabilizes the caps enough for 10,000 rpm!

A car running on street tires will never need external oil drain hoses. The G Forces will never be high enough to warrant them. If oil is packing in the valve covers of a car equipped with street tires, there is too much oil flowing to the valve gear. The motor needs lifter bushings, restricted push rods, the Boss 351 lifters or something like that.

I wouldn't install external drain hoses on a car running race tires until the oil pressure gage indicated I needed them.

I wouldn't worry about additional oil to cool the valve springs until my springs started to show signs of loosing their tension (early valve float). And the first thing to do to remedy over heating of the springs is to install an oil cooler, not to increase the amount of oil supplied to the springs.

In fact, any car that is going to be raced on a track should be equipped with an oil cooler and an oil accumulator (an AccuSump) before the first lap.

NASCAR racing (500 miles of non-stop high speed racing on banked ovals) is an extreme test of a race car. There's no reason to assume your car will encounter any of the problems that NASCAR race cars encountered.

-G