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Dead Parrot · 03-13-2018, 07:14 AM

My one experience with blown head gasket in a SBC was due to a stuck thermostat overheat. Went bad in the small gap between cylinders. No fluid leaks, just bad compression on the two adjacent cylinders.

If you aren't pulling the pan, do your best to tilt the vehicle to drain all the stuff out. If on level ground, a couple of short 2x6 under the front passenger tire will work.

Sounds like your bad manifold job is the likely culprit. While the OEM manifold doesn't have rear coolant passages, the heads do have the holes for some. If the rear manifold gasket didn't seal, coolant in the oil is possible.

Might also check and change that valve cover gasket. They are a common source of oil leaks.

03-13-2018, 07:14 AM	#4
Dead Parrot Registered User Join Date: Aug 2012 Location: Oklahoma City, OK Posts: 2,472	Re: Coolant in pan questions My one experience with blown head gasket in a SBC was due to a stuck thermostat overheat. Went bad in the small gap between cylinders. No fluid leaks, just bad compression on the two adjacent cylinders. If you aren't pulling the pan, do your best to tilt the vehicle to drain all the stuff out. If on level ground, a couple of short 2x6 under the front passenger tire will work. Sounds like your bad manifold job is the likely culprit. While the OEM manifold doesn't have rear coolant passages, the heads do have the holes for some. If the rear manifold gasket didn't seal, coolant in the oil is possible. Might also check and change that valve cover gasket. They are a common source of oil leaks.