Where is the maximum oil fill line for a BBC? Not just on the dipstick but in physically in the engine? Bottom of the crank counterbalance?
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Correct oil fill for BBC
- Thread starter BBShark
- Start date
Should be below the counterbalance, you don't want the counterweights frothing up the oil. Look at where a windage tray would sit below the crank, the oil will be below this level. Our resident big block racers should have a good handle on this with the cornering and braking loads sloshing the oil around in the pan making a windage tray and oil level that much more important. I wish I had a more precise answer for you.
Been looking around and I have an original BBC oil pan with baffles. So, the book says fill for a BBC is 5qts. I am pretty sure I put 6qt in but it reads way over full on the dipstick. The dipstick is a generic aftermarket stick so, who knows. I am going to replace it with a repro of the original dipstick and tube, then see what it reads (and adjust the fill to that).
A GM dipstick and tube confirms its over filled. Drained and refilled, it's a quart over,. Whoops.
