Drilling out 1/4 for 5/16 style distributors

Thanks for the info X, so if i was to look for a distributor for my pre-64 block i want a 81 or later aussie dis? or would a search for Australian duraspark work?

Any competent machine shop should be able to ream out the small shaft bore to comply with the larger 64 1/2 & up blocks size. Then you can use the DS11 & HEI distributors. Note i did not mention the DUI cause it has housing design problems & the over priced DS11 with a full length bushing which also has vertical movement & is just a reman. distributor with a generic curve & has a non adjustable vacuum advance plus a non hardened distributor gear.
Other wise some of their products are very good.
How do i know cause i fix those mentioned above every week. Bill

62Cometman":2ul2ghvo said:

Thanks for the info X, so if i was to look for a distributor for my pre-64 block i want a 81 or later aussie dis? or would a search for Australian duraspark work?

Click to expand...

Yes, the Aussie Bosch made Duraspark or even the TFI, both have a really nice F150 4.9 style spark curve which is perfect with a mild to wild in line six.

But a good machine shop is better, IMHO.

And another thing....