Quote:
Originally Posted by BERNIE
5A-21 also !!!
Bernie
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Not a lot of information is in the public domain but what is shows that AC Cars installed five and six bolt engines in chassis; engines made in batches between early 1963 and the third week of April 1966. Not that is helps Mark in his quest in any way but information in public includes:
Leaf Spring COB/COX60xx chassis
COB6008 = 1670 (early Ford five bolt HP289 serial number)
COX6010 = 1657 (early Ford five bolt HP289 serial number)
COX6014 = 2559 (Ford five bolt HP289 serial number)
COB6024 = 3135 (Ford five bolt HP289 serial number)
COB6026 = 3184 (Ford five bolt HP289 serial number)
COX6032 = 3204 (Ford five bolt HP289 serial number)
COB6039 = 5413 (late Ford five bolt HP289 serial number)
COB6040 = tag not stamped
COB6046 = tag not stamped
COB6054 = 5A27Z (Probably a Ford six bolt assembly date January 27, 1965. I say probably because only six bolt engines were made in standard production after July 1964. There is a chance, I would believe it to be real small, that it could have been a five bolt “service” engine. Small numbers of HP289 service engines were assembled using what parts were available at the time after five bolt engine standard production ended. I have no idea if five bolt HP289 service engines were being made past August of 1964 as in September 1964 several of the components in all 289 engine assemblies changed to new design revision levels. )
Coil Spring COB/COX61xx chassis
COB6105 = 5A22F (probably a Ford six bolt assembly date January 22, 1965)
COB6120 = 6D13F (Ford six bolt assembly date April 13, 1966)
COX6122 = 6D12F (Ford six bolt assembly date April 12, 1966)
COX6126 = shipped to original owner without engine or transmission
COB6217 = chassis not completed and sold less engine
The Ford serial numbered five bolt engines span an early 1963 to summer of 1964 production time frame. The 5A22 and 5A27 made engines had to be 1965 model year assemblies while the 6D dates represent a 1966 model year engine model.
It would be fantastic to come up with day one pictures of these January 1965 engines in these chassis get a look at the clutch bell housings. A good picture of a bell housing would allow visual identification of its five or six bolt design.