I bought this 1974 L about 3.5 years ago. When I purchased the car the stamping on the engine block matched the body serial number, so my guess was to take it at face value that this is the original engine. It is a 4v 4 bolt main engine. As I have been doing mechanical updates I ended up pulling the heads to replace the valves and valve guide, it was at this point I discovered that these were D0AE heads with adjustable rockers. By the book a 1974 Pantera would have been an "Q" code engine however I'm wondering if it still should be considered a "Q" code? Also were these heads considered a "Boss" head?
The other thing I encountered was that the exhaust headers that were on the car were to small of an opening, more like for a 2v head, which created an exhaust leak as soon as it burned through the exhaust manifold gasket. Purchased a set of PIM 4v exhaust manifolds which fit up as you would expect. Do I remember reading that a 2v engine was sold in the Aussie Pantera at one point? I don't have a use for the headers and would like for someone else to get the benefit if there is a need.
Any info would be greatly appreciated.
Thanks!
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