The Stovebolt Site Forums The Shop Area Engine Shop 261 ID Questions, and Oil Filter Parts Needed

In my experience installing a full flow filter is more trouble than it's worth. On cold startup it takes longer to get oil to the main gallery where the gauge fitting is; there is the issue of leaking hoses and hoses getting fried over time by exhaust heat (which on a hard pull will run about 1,200 Deg. F); the full flow filters available filter average particle size of somewhere between 25 and 40 microns (if you can get the spec at all) and the spin-on canister's quad ring can leak along with all the other connections. You can set up a very fine bypass filter in the range of 5 microns made for hydraulic systems that will keep the oil much cleaner. I would do this anyway even with a full flow filter. I did that on mine and oil analysis shows insoluable particle count approaching zero after 5,000 miles. Averages are 0.6% and mine at 0.2% per Blackstone. I use an old-time Franz toilet paper filter.