Billet Oil Filters

After reading the debates about oil filter problems on the various message boards over the years, we are now offering these "lifetime" oil filters. No more worries about inferior anti-drainback valves, paper elements failing or housings blowing out. Are they expensive? Yes! Are they worth it? YES!

    Machined aluminum housings replace stock spin-on filters and accepts a proprietary high flow synthetic oil filter element. Designed to withstand the highest pressure surges and rough duty service.
    The blue anodized housings have a removable bottom threaded cap. Element replacement is done through the bottom cover which is threaded into the body.
    These spin-on oil filters are offered in several different combinations of mounting thread and sealing gaskets, along with two lengths to fit most engine applications. Each housing comes complete with all the necessary O-rings and gaskets required, and one 8 micron element.

Above is a 25-452 filter installed on my 87 Grand National. Plenty of clearance from everything even though it is longer than a PF-52 filter. I picked up approximately 3 lbs of oil pressure at a hot idle!

Here is a the 25-452 filter compared to the AC PF-52 filter	25-452 filter Main body of filter is anodized dark blue
End cap is removable to replace element
We are offering three sizes for the Buick Turbo V-6's including one for those that have converted to the "Biggie" adapter. These filters DO have an anti-drainback valve! The 25-252 is a bit longer than the stock PF-47 filter and 3/4" shorter than a PF-52 AC Oil Filter. 25-252 SHORT SPIN-ON OIL FILTERS are 4-1/4" long, 3-1/4" in diameter with 18 mm thread and standard o ring and accept a 2-5/8" high 8 micron element. - $100.00 each Replacement Elements #26-000 - $15 each. Replacement Spin-On O-ring kits #26-852 - $7 each. The 25-452 is 1 1/4" longer than a PF-52 AC Oil Filter 25-452 LONG SPIN-ON OIL FILTERS are 6-1/4" long, 3-1/4" in diameter with 18 mm thread and standard o ring and accept a 4-5/8" high 8 micron element. $105 Replacement Elements #26-100 - $17 each. Replacement Spin-On O-ring kits #26-852 - $7 each. The 25-432 is for use with the "Biggie" oil filter adapter made by RJC 25-432 LONG SPIN-ON OIL FILTERS are 6-1/4" long, 3-1/4" in diameter with 13/16" - 16 thread and standard o ring and accept a 4-5/8" high 8 micron element. $105 Replacement Elements #26-100 - $17 each. Replacement Spin-On O-ring kits #26-852 - $7 each. ORDER FILTERS & REPLACEMENT PARTS BELOW.

Questions Most Asked
These filters were developed to better protect expensive racing engines. A filter was needed that would handle a continuous high flow of oil while filtering out small particles. The flow should not be restrictive even when the filter is partially contaminated and all the oil should be filtered all the time. The element should not be affected by moisture which erodes paper elements, and it should withstand pressure surges without collapsing or rupturing. The filter element meets these requirements and overcome the shortcomings of conventional filters. In the years since their development these elements have proven themselves in NASCAR, SCCA, IMCA, IRL, and NHRA racing and on countless street miles. Conventional spin on filters have an element made from porous material (usually paper) which catches contaminant’s on its surface. The flow limitations of this design require a compromise between large pores for more flow, which also lets bigger particles through all the time or a bypass which lets unfiltered oil during times of high flow. When designing the filter this compromise was eliminated by going to depth filtration, where oil flows through millions of intertwined passages and contaminant’s are caught within the element. The flow characteristics of this design allows for finer filtration with greater flow without the need for a bypass. The synthetic fiber element material which is moisture resistant is sandwiched between two steel cages for surge protection. These elements filter out particles down to 8 microns, half the size of what the average spin-on filter does and has a flow rate even when contaminated, that is far greater than that required by any automotive application. Depth filtration extends filter element life because it can catch far more contaminates without restricting flow. Because of it’s longevity these filters are a natural match for use with the longer lasting synthetic oils. Lightweight aluminum remote canister housings are available for both the 2 5/8" tall and the 4 5/8" tall elements. While these styles have been most popular in racing, they are a good option for applications where a conventional spin-on is in a hard to access place. CM spin-on housings are offered for both the 2 5/8" tall and the 4 5/8" tall elements with thread and o-ring combinations that fits most engines. These machined aluminum housings will last the life of your car. The technology in the automotive area has advanced greatly in the past years. Today’s engines develop more horsepower from smaller displacements, they rotate at higher R.P.M.s, with tighter tolerances, and generally run hotter. To maintain longevity under these conditions engines require a strong lubrication system. Today’s oils have also improved to meet these demands, by lasting longer, and lubricating better, but even the best oil can only provide protection if it is kept clean. In an automotive engine, oil collects contaminates as it circulates through the engine, these particles should then be removed by the oil filter. Contaminant’s are present in all engines.They are a by-product of the combustion process which leaks past the piston rings. They are small particles of materials caused by the wearing of internal parts. Hot spots within an engine can cause oil decay (sludge) that needs to be removed. To be truly effective an oil filter needs to filter all the oil that goes through the lubrication system and remove these particles. Depth filtration removes more particles without restricting flow, providing the absolute protection needed.
Can you clean Synthetic Filter Elements?
No. Elements can not be cleaned because they work on depth filtration design where particles are caught within millions of tiny passages which run through out the element. This design allows for a much greater flow and the ability to hold far more particles than a conventional surface filter.
When should I change my filter element?
Under normal operating conditions we recommend a filter element should be changed every 10,000 street miles. Many customers change the element every second oil change. Under circumstances when large quantities of particles are being caught, like in older engines, engines which have not had regular oil changes, new engines during break-in, or when some oil additives are used, the element may need to be changed sooner. When the normal operating oil pressure has decreased 4 lbs. to 5 lbs. the filter should be changed.
How often do I change the O-ring seals?
Unless they are damaged they can last at least 4 filter changes.
Do these Spin-on Filters have an anti-drain back valve?
Yes. A flapper valve allows oil to easily enter the filter, while preventing it from draining out once the engine is shut off.
Do the filters have a built-in bypass?
No. The high flow of the element can handle more flow than that required by any automotive application, so all the oil can be filtered all the time.