I dont doubt that a bit. My sb was short filled and oil always ran hot. Good oil like amsoil is good to 380* before it starts to break down. Will need a oil cooler and may switch over to E85 if i need to.

I like dependable simplicity..........plus I drive mine more than most at this power level n/a and over heating weather oil or water is a no-no in my book..........

On a low deck block, filling to the bottom of the water pump hole can often result in water flow problems through the block, since at that height the fill can get to the bottom of the head bolt bosses....... Which can restrict/block the coolant from reaching certain areas of the block.

On an RB block, that same level of fill would have the bolt bosses 3/4" farther away from the filler.

its filled 3" below the deck. could have some issues.

I only repeated what I was told and personally would never add that weight to the ft. end of the car but that's me........stock 400 block here, 15 years of street/strip bashing, stock 413 off-set ground crank and stock caps. In the 9's for years and ZERO issues.............kinda like the 8 3/4 that went many years.......

I ran a filled 420 small block on drag week 6 times. Changed oil (Val 20W-50 racing) mid week and let it run. I have a oil cooler with -12 lines. Oil temp runs 205 to 210 with the oil temp sender in the oil pan. Interesting thing happened to me on one of the trips in the middle of the week I thought my valve springs were getting week so I changed them at the track to a new set, and the oil temp increased by 15 to 20 deg's. The old springs were a set of the polished ones, chrome looking springs. That block is now being used in the 468 in the Cuda drove it last weekend to KC 80+ deg air temp, and the oil temp ran 210 to 215, water temp was 185.

That's a great little tidbit of info about the polished springs.

Sterling Goins(owner of Air Flow Research) told me years ago that the valve springs make up a bunch of the heat in oil, especially on roundy round race motors
More pressure, more heat

what size oil cooler do ya think it would take to keep temps in check? fan?

after the cost of all that you could just put your current cooler in a water tank circulated with coolent from the heater tubes from the water pump,A tank 1" bigger than the cooler on all sides.

I have a 4 pass on mine.

10 row? 15 row? been looking at the coolers with fans on them.

i currently dont have any oil cooler.

To save a few bucks you could get 1 off a motorcycle but cooling with water can be better than in air.

Where do ya find the water to air oil coolers at. Iv never seen one.

Most stock radiators have them for the tranny to help warm them up

Think im gonna have a tough time cooling the coolant. Not sure i would want it to do double duty with both oil and coolant.

The engine has the same BTU you just use 2 ways to cool it.

yeah,but wouldnt it over tax the cooling system trying to cool the oil and coolant with the same radiator?