"Biggie" oil filter adapter for guys without the oil cooler

[Race Jace]

I now make these. these were a little hard to make because difference between the female major thread dia and minor male thread dia were so close.

http://rjcracing.com/RJC_Buick_Products/Biggie_Oil_Filter_Adapter/biggie_oil_filter_adapter.html

We now have a "biggie" adapter for all cars that use a PF47 filter.

I think the big block cars use this filter too...?