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I think i was running lean. just installed new carbs, and was running it, port motor dropped 400 rpms, i pulled down to idle, idled fine, revved fine, killed it, went and looked and milkshake in the oil.

Blown head gasket? I just put cometics on it, but guess it doesnt matter when your lean.

its at the shop now. :(

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intake .....

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How are the plugs? They will show you a lean condition.

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just found out, plugs good, compression good, bad intake gasket!

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:D Bingo

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Mike, good call. How did you make out with those Gils?

Shawn

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Intake gaskets are the number one thing to check whenever someone says they have milkshake oil, in my book.

What type of intake?

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stock hp500 intake (carb).

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Keep on torqing it down as many rounds as needed until the 1st bolt in the sequence holds the torque.

Sounds like you got quick service. good luck

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Hey Shawn .. not one problem ...motors are out now ..we replaced everything but the blocks .. stroked out to 509's... cant wait to get it all together ...m

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Jason,

How many hours?

Might also have the headers pressure checked. You may have a leaky one. Also, depending on who's working on it.... don't get sold on " your heads are bad and you need new ones." I won't name him/them, but someone you have to know on the lake, tried to tell me mine were bad (2 summers ago). So, before letting them work on it, I had the heads shipped to my engine guys here in Houston (Owens Racing), and it was fixed --- majic!!! :p

Turned out, I had a bad alignment pin (aka... something or the other -- don't remember the tech. name for it).

In any event... I'd check the headers.

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YES good call! Also a very wise old Wrench (no not wench) told me when I was young and stupid, Start with the cheapest work to the most expensive part. With a little modification I used that with my students, Check the easiest and work to the hardest.

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Try using Blue Hylomar around the water jackets on your intake. I have had great success with this on all water passage gaskets. It doesn't get hard and seems to be a good corrosion inhibitor.