June 2007 – Cylinder head differences, ’63 and ’79

The head — 1963 E-type v. 1979 XJ6 As a side note before launching into depictions of the 3.8 and 4.2 heads, I discovered in my reading that Jaguar wasn’t the first to have bored out the 3.8 (or, maybe, the 3.4) liter engines to 4.2 liter displacement. It was reported that race teams had Read more about June 2007 – Cylinder head differences, ’63 and ’79[…]