Timing Jump

[hiball3985]

Just a word of warning, we had a big post on the Y block forum about the problems guys are having with CARDONE rebuilt units. Apparently they are using Y block housings and installing SBF shafts due to the shortage of Y block shafts. These SBF shafts are about 1/2" short and barely reach the oil pump drive and locate the gear in the wrong dimension for proper mesh with the cam gear. They are selling these on Ebay and at parts suppliers like NAPA..

I just built one distributor from parts of two ( COAF ) and made a discovery about the oil cap and hole to nowhere but thats another story for another day 

[djfordmanjack]

Jim, that sounds awful...

I was referring to oem FoMoCo replacements from the 1970s, that have a SBF housing but Y block compatible inner parts.

[hiball3985]

Jim, that sounds awful...

I was referring to oem FoMoCo replacements from the 1970s, that have a SBF housing but Y block compatible inner parts.

DJ, I'm pretty sure the late 60's Y dizzy that had the O ring seal is the same housing they used for the SBF.. only difference is shaft length.

[djfordmanjack]

Jim , exactly my thinking. I have  289, 302 and 351 sbf and that housing on the late Y dizzy sure looks the same ! just a longer shaft.

[hiball3985]

Just guessing at history but I think they just did a simple change to the casting for the O ring and decided they could use it in the early 221 and 260 and Y and only have to change shaft length and gear position and then continued using it on the later 289/302..