Water in oil 327cu/in Chevy

[jonyyuma]

I bought a brand new one 1970 Malibu, in LR and it was 250hp-350/350hydra, best new car I ever bought...

 

[Car Doc]

deerefan,

I read the whole thread and nobody mentions intake gaskets specifically as a leak spot.

So I will they can and do leak internally at the corners and not leak to the outside fact some manifolds corrode out and let go especially factory aluminum manifolds very often overlooked. hth

 

[Ryan03]

deerefan,

I read the whole thread and nobody mentions intake gaskets specifically as a leak spot.

So I will they can and do leak internally at the corners and not leak to the outside fact some manifolds corrode out and let go especially factory aluminum manifolds very often overlooked. hth

???? I mentioned them in my very first sentence in post number 17.

 

[murphy1244]

It ain't a coolent leak he has water in the oil.

 

[Ryan03]

It does. My cam is smallish, 272 duration, .427/.442 lift. It has small valve 1.94/1.50 iron heads shaved .015, an edelbrock performer intake, edelbrock 600cfm carb and stock hei ignition. The block is bored .060 and has 4 valve relief pistons. I have a 1500 stall, turbo350 & 4.11 gears. I need to tune it and set the timing again.

When the heads were shaved .015, was the edelbrock intake milled the appropriate amount ? A quick google search shows that for a small block chevy, for every .005 milled off of the bottom of the head, .006 must be milled off of the intake port face of the head, .008 to .009 must be milled off the bottom of the intake. Here is a link to the discussion, check out post number 10 V8 Chevy intake manifold milling - Practical Machinist - Largest Manufacturing Technology Forum on the Web

 

[RobertN]

If I could afford one, it would not be magazine material... Clean, but not that fancy. Aint gonna happen on my budget any time soon.

And, rather than hack a Roadrunner, would start with a Satellite, add Roadrunner hood etc.

As for the Roadrunner with Cummins power, I hate seeing a nice classic hacked up to sell magazines.

 

[Mace Canute]

I agree with Ryan03 and Car Doc...there's a chance the leak is at the coolant crossover between the heads and intake manifold.

 

[Car Doc]

???? I mentioned them in my very first sentence in post number 17.

Sorry man I see that now so lets just say +1 or 2 what Ryan said hows that good thinking btw! :thumbsup:

 

[jonyyuma]

I agree with Ryan03 and Car Doc...there's a chance the leak is at the coolant crossover between the heads and intake manifold.

I guess I was lucky with my 73 357 engine, I used the best gaskets I could find and a edelbrock manifold. It had the heads cut .020...block not cut..IMHO,,,.I would start it and look for leak inside the radiator, you should see air bubbles, or if fancy there is a analizer guage for it too.Then,definitely change the oil and oil filter..if there is an accumulation in area of dipstick?

 

[deerefan]

I guess I was lucky with my 73 357 engine, I used the best gaskets I could find and a edelbrock manifold. It had the heads cut .020...block not cut..IMHO,,,.I would start it and look for leak inside the radiator, you should see air bubbles, or if fancy there is a analizer guage for it too.Then,definitely change the oil and oil filter..if there is an accumulation in area of dipstick?

I just picked up the oil and filter today. I hope it as simple as a gasket as i will be tearing the motor down soon to upgrade the heads, cam and intake.