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Currently running a ForcedFed turbo kit on a stock motor running a very conservative 6psi of boost, with AEM EMS-4 for tuning. Put about 5,000 miles on it by now, up to 28K miles on the motor. Recently I noticed the engine chugging as if one cylinder wasn't firing right. Also started noticing white smoke coming from my crank vent catch can filter too.
So I opened the catch can and it was lined with milky white foam that dissipated into a watery residue when touched. Compression test showed around 210psi for three cylinders, with one (2nd from passenger side) down to 165psi.
Sounds like a blown head gasket right? Burning coolant, milky foam, white smoke from crank. So I pulled the head; both block and head weren't warped at all. Gasket surfaces didn't show any cracks or notable defects either. So I replaced the gasket with a Cosworth gasket and ARP head studs, and reinstalled the head. STILL BURNING COOLANT, STILL LOW COMPRESSION...
All I can think of is a cracked block / head somewhere internally. Thoughts?
So I opened the catch can and it was lined with milky white foam that dissipated into a watery residue when touched. Compression test showed around 210psi for three cylinders, with one (2nd from passenger side) down to 165psi.
Sounds like a blown head gasket right? Burning coolant, milky foam, white smoke from crank. So I pulled the head; both block and head weren't warped at all. Gasket surfaces didn't show any cracks or notable defects either. So I replaced the gasket with a Cosworth gasket and ARP head studs, and reinstalled the head. STILL BURNING COOLANT, STILL LOW COMPRESSION...
All I can think of is a cracked block / head somewhere internally. Thoughts?