What is a good sealant to use on the block,under the intake?Will any high temp sealant work. Thanks Chad

 

Permatex (Hi temp) Copper sealant is what I've used and it worked great. Make sure to add a little extra on the back of the block right near the bolt for the oil pressure sensor. That's where it tends to leak the most.
Also let it sit for about 24 hours after the fix to ensure proper sealing.

Check out this link for some useful tips.

 

Ditto on the Permatex Copper

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