Anyone have any clue what this is for? Click on the images to see larger version. Mallory Billet Competition Distributor Part #: 5457815 Model: YH Thanks, Brett
It's a dodge! but seriously, measure the length of the shaft and compare to known lengths. And check direction of rotation of the advance mechanism, if it has one, big block based engines are counter clockwise, the rest are clockwise https://www.bigblockmopar.nl/tech/mopar-distributor-shaft-lengths/
Assuming this is the correct way to measure it, it is 4.25" dead on making it either: Chrysler 331/354 Hemi – 4.25″ Dodge 315/325 Hemi – 4.25″ I don't see an advance mechanism unless its built in internally and in the bottom: Thanks for the info!!!! Brett
To me a Newer model after Unlite , used with box , EFi , I would think its BBM maybe a catalog 2010 -18 , Before Holley If you hold shaft , Amy movement in rotor button ? That will tell you Lock out , I still think its a 1st , 2nd gen used with a Ecu or Box .
like Eddy says, try holding the bottom of the shaft, see if the rotor will turn clockwise a little bit, with spring resistance. That would be mechanical advance. If it is "locked out", then the rotor and shaft will be solidly connected together.
While holding the bottom of the shaft, the rotor head turns counter-clockwise a small amount. When turning clockwise it is locked. Does that make it a big block version?
looks to be BB Mopar ,, its Front mount Most likely & counterClock rotation & with advancement. Maybe reverse rotation for rear mount but that thinking outside the box. I can not remember if 53 ish F-H ford has a gear on disturber shaft? Someone will answer
If you mean "flathead Ford", yeah, they have a gear on the end. I'm with @squirrel, that's a Mopar unit.
@Moriarity Just Curious about what year Released ? Did not see a date of catalogue Op maybe Stamp part # on the housing
That was put there by a fax machine. There is no identifiable information except the part number and type: Part #: 5457815 which is stamped into placard and Type: YH which is a separate label
Just off top of head & remembering things, I am sure not a Unlite module that I've seen all have been"" Red "" With Eye , Looks to be magnetic pick up , So I am wondering if it the 9000 series Or after , or around same time , Again thinking & remembering 97 ish Or much later , But sure before Holley