Here is a halo system for a Pontiac. I made some supports to tie into the unused bolt holes on a 4 bolt block with 2 bolt caps. But that is optional. It fits in a stock oil. This photo was for 3.75” and 4” cranks. For bigger cranks a oil pan like a newer Milidon 7 qt would be a better choice for more room on the front cylinders. This one won’t clear the rod bolts as shown on a crank bigger than 4”..
Last edited by Jay S; 02-18-2020 at 02:33 AM.
Reason: Edit
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