Thread: Sbc 350 vortec heads coolant out of cylinder 6 exhaust.

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I'll make this brief and as detailed as possible. I drove 60 miles no problem then at a stop light waiting for the light to turn green my exhaust is spewing white smoke. Steam train amounts. Did compression check and got:

1-185. 2-205
3-188. 4-205
5-165. 6-210 with coolant out exhaust port while cranking
7-165. 8-205

My question is how can the be so far off from driver to passenger side? Also how is cylinder 6 still holding compression?

The heads have about 1k miles on them and the engine rebuild has about 500 miles. I used the normal felpro head gasket 7733pt-2. Initial timing is at 10* and total is 31* all in around 2.8k rpms. Car never overheated and everything was great up until now. Wideband read 12.1 at wide open. Thanks for your help.