Availability
Stef's header adapter plates make it easier to increase header size when you are using stock or aftermarket cylinder heads. The flange plates are CNC-machined from 1/2 thick billet aluminum to save weight and to ease the task of matching the adapter plates to the ports. Special hardware is supplied to attach plates to heads without interfering with the header flange. For the ultimate way to increase the capability of your engine, order and install Stef's header adapter plates. Gaskets not included, sold separately.
( 3 )
$137.99
Stef's confined element oil preheaters put an end to any worries of boiling oil, or the separation of suspended minerals, paraffins, and other oil additives. This design isolates the element itself from direct oil contact within a stainless steel housing containing highly heat-conductive material. These heaters will increase the temperature of five quarts of oil by 50 to 60 degrees F (depending on the viscosity and ambient temperature) in 15 minutes. A 3 ft. power cord is included.
( 2 )
$113.99
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$159.99
Stef's rear main seal adapter kits are designed to install an early 2-piece style crankshaft into a late model, one-piece engine block. They are manufactured from billet aluminum and require no drilling or welding for installation.
( 2 )
$128.99
Wheel stands and hard launches create the need to control fluid in the transmission. These transmission pans for Stef's improve fluid control by increasing the capacity of your transmission. They are substantially lighter than stock or aftermarket steel and cast aluminum pans. These pans come complete with mounting hardware, a magnetic drain plug, and a filter extension when applicable. In an effort to ensure a long-lasting, leak-free product, these pans are constructed from 0.090 in. thick aluminum and feature 3/16 in. pan rails.
( 13 )
$253.99
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$269.99
B&B Performance valve cover spacers give you the clearance you to use stock style valve covers when valve train modifications are in use. They are made of aluminum and are available for your Chevrolet and Ford engines.
( 7 )
$109.99
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$133.99
Stef's replacement windage screens can improve drainage, reduce windage, and increase horsepower! These PTFE-coated replacements are designed to direct oil into the sump area and off of the rotating assembly to deter power-robbing drag. They're available in a trim-to-fit design to best fit your application. So, if you want the "racer's" edge on the track, give Stef's replacement windage screens a go!
Not Yet Reviewed
$105.99
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$159.99
Stef's carburetor tool trays mount right on the carburetor without removing the air cleaner stud. These aluminum trays have grommeted holders prevent the spark plugs from falling out of the tray, and have a 13 in. x 13 in. area covered in padding on the floor to protect precision tools. They are available in different models to fit either 5 1/8 in. or 7 5/16 in. carburetor necks. Order the model designed to fit your application.
Not Yet Reviewed
$161.99
When it comes to breather tanks, Stef's doesn't fall short in selection. Originally designed as external dry sump tanks, they can now also be found as crankcase, transmission, and rear-end vents. These tanks include a universal mounting bracket, a male AN or NPT fitting, a draincock, and either a breather or twist-off lid.
( 4 )
$141.99
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$179.99
Stef's engine bags are designed to protect your rebuild or spare engines when you're storing or transporting them. These large, heavy-gauge, plastic engine bags are ideal for keeping both dirt and moisture away from any engine build project. Improve the look of your shop with these handy engine bags—and forget the trash bags and tape alternative. Conveniently sold on roll (100 count) to offer shops an affordable option to protect engine builds.
( 1 )
$231.99
Stef's drive mandrels furnish the engine builder with high-quality components to drive dry sump pumps, water pumps, alternators, power steering, fuel pumps, or any crankshaft-driven accessory. These parts are engineered to fit with all component pieces and allow you to build your own specialized drive kit. All pulleys and spacers are black anodized for long wear. They come with a 1/8 in. keyway, dowel pins, and a Woodruff key for correct balancer alignment. These mandrels can be cut to suit your particular application.
Not Yet Reviewed
$212.99
Stef's marine dipstick assemblies can be located on their pans for ease of oil checking and maintenance in any application. These dipsticks are a universal type, available for aluminum and steel pans.
Not Yet Reviewed
$122.99
B&B Performance's unique step washers for aluminum heads are fully machined from 4130 chromoly steel and heat-treated to the proper hardness. They are permanently pressed into the top of the bolt hole, which completely eliminates the problem of the aluminum collapsing into the bolt hole.
Not Yet Reviewed
$102.99
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$139.99
These Stef's air/oil separator tanks are designed to vent the vacuum pump's discharge, delivering maximum performance. They are manufactured from aluminum, have a natural finish, and include a filler cap. Available in your choice of -10 AN or -12 AN inlets, Stef's air/oil separator tanks will make sure that your vacuum pump system is operating correctly throughout the engine's entire rpm range.
Not Yet Reviewed
$147.99
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$182.99
Stef's dry sump tank mounts offer superior clamping force, load capacity, and unitized construction. These through-bolt style lightweight tank mounts are designed to be used as a pair and feature 1 in. x 1/2 in. aluminum mounting brackets. They also feature rubber-encapsulated stainless steel through-bolt banding clamps, rubber tank cushions, and Nyloc clamping hardware. Stef's dry sump tank mounts are well-suited for flat surface mounting in your drag race or Circle Track application. Plus, they are NHRA-legal.
Not Yet Reviewed
$113.99
Stef's oil pump pickup kits are available in steel and aluminum to offer all racers the obvious advantages of a single stage external oil pump system. They can also be installed as third dry sump scavenge pickups.
Not Yet Reviewed
$101.99
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$116.99
These trim to fit PTFE coated Stef's windage screen trays were initially designed for drag racing and circle track applications where rules dictate the use of stock configuration oil pans. They can also adapt to any existing race or street oil pan providing the horsepower and oil control of this well proven windage reducing concept. Dyno testing has proved that the screens are worth an additional 5 horsepower over the competition. These kits include the same PTFE coated screen used in Stef's oil pans, along with preformed mounting brackets, hardware and instructions.
Not Yet Reviewed
$159.99
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