Reply to "Pantera Engine Blocks"

4vandproudMember

March 1971 heads will be closed chamber with 66cc chambers, a little larger volume than the D0 heads with 63cc chambers. if you look at the 4V Cylinder Head Repository in the date column, you'll see the break around July 1971 when ford stopped making closed chambers and started making open chambers. click on this link and open the pdf

https://www.tapatalk.com/group...ot-no-dot-t4793.html

Garth, the 1970 and 1971.5 M code 4V engines were built on 2 bolt main blocks, the only 4 bolt main block prior to the introduction of the Q code engine was the Boss

Doug, there are also those that deny the 1973-74 Q code engines being CJ's because they don't have the 2.19" / 1.71" valves, and no you can't talk to them no point in trying

2/1/224:26 PM

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