Cylindrical Tanks Assemblies > Products

Whether it be Drag Race/Circle Track/Road Race/Marine and/or Dynamometer application, STEF’S innovations not only further enhance the efficiency advantage of cylindrical tank design, but also feature true cost effectiveness, vehicle weight savings and compactness of design. All of which is accomplished through a complete systems engineering approach.

These revolutionary track tested designs incorporate a 360° perforated 4" diameter integral vertical center baffle that forms a positive oil/air separation chamber against the outer tank wall. By contrast, traditional horizontally baffled or vaned tanks, which permit aerated oil to continue to swirl at higher r.p.m. levels is where STEF’S design first displays its superiority. This well proven concept promotes immediate downward oil flow and premeditate deaeration of return oil without scavenge line flow restrictions. Related design advantages employ an integral top vented breather tank, allowing only crankcase pressure to vent the breather as it’s virtually impossible for oil to reach the top center reservoir tank positioned breather tube.

These tanks utilize a 4" self-locking cap and internal accessibility thus allowing thorough cleaning without removing lids, baffles, O-rings, and/or clamps. STEF’S Cylindrical Tanks also include the following features: encapsulated element type oil heater, 2 elastomer lined banding clamp mounts with through bolt fastners, 1 x -12AN outlet, and your choice of 1,2, or 3 -10AN to -20AN male returns.

Perhaps the best feature of STEF’S Cylindrical Dry Sump Tanks—the cost. Our completes assemblies compared to traditional external vent tanks and plumbing put us above in technology, function, and form.

Stef's Cylindrical Tanks Assemblies
Stef's Cylindrical Tanks Assemblies

Chevrolet - Marine Pans

Part
Number
Application Oil Capacity

Diameter

Height
4105 Drag Race 1 Gal. 6" 14 3/4"
4110 Drag Race 1.5 Gal. 7" 14 3/4"
4115 Drag Race 2 Gal. 7" 18 1/2"
4116 Sprint Car 2 Gal. 6" 21 3/4"
4120 Circle Track 3 Gal. 9" 17 1/2"
4121 Circle Track 4 Gal. 9" 20 1/2"
4125* Dynamometer/Test 4 Gal. 9" 20 1/2"
4130 Winston Cup 5 Gal. 12" 17 1/2"

*Note

Dynamometer tanks do not include integral breathers; they are designed for externally plumbed vents or tanks (see page 23). They do include however, a sight gauge assembly and two -12 and one -16AN returns.