sealing · FF-0310

Why did head gaskets leak on the early ARDUN conversions?

Steve shows a stock 8BA block to make the point: there is very little area between the valve pocket and the cylinder for a gasket to seal against. The original conversion was meant to be retrofitted to a truck without machining the block, so it relied on gaskets, and they were prone to leak there.

Expert
Steve Coppock
Evidence
expert attributed
Component
head gasket sealing
Applicable scope
Ford Flathead V8 with the original ARDUN conversion; shown on an 8BA block
Original BTG sourceARDUN Heads: Zora Arkus-Duntov's Ford V8 Innovation
Watch at 23:25.160 ↗