Dry Sump Marine

Offshore, Drag Boat, Inboard Class racing, Grand National Hydro, and/or any form of power boat racing has a common debility; engine speeds that have far surpassed the perfunctory capability of the wet sump oil system. STEF’S has combined the latest in proven horsepower producing design concepts with unparalleled scavenging and oil control to meet the challenge in marine competition engines.

STEF’S Marine Dry Sump pans feature fully extended kickouts, special coated uni-directional windage screen, proprietary marine directional baffling for unsurpassed oil control, and optimum pickup location for consistent scavaging.

Because boat racing is as much about endurance as it is speed, special consideration is given to material selection and welding technique. Each pan is 100% heli-arc welded inside and out to withstand 100’s of hours of crashing through 6 footers at top speed. Every pan is leak checked at final inspection to insure quality to our customers.

Each pan includes mounting hardware.

2961

2961

2970

2970

2971

2971

Chevrolet V-6

Part Number Application Type Dimension Depth No. of Pickups & Size
Off Shore Alum 6″ x 6 1/2″ 2 X -12AN

SB Chevrolet

Special

Part Number Application Type Dimension Depth No. of Pickups & Size
Off Shore Type 2 pc Steel 5″ x 5″ 2 X -12AN
Off Shore Type 1 pc Steel 5″ x 5″ 2 X -12AN
National Modified 2 pc Any Special 2 X -12AN
National Modified 1 pc Steel 12 qts >5″ x 10 1/4″ x 14 3/4″
Sprint/River Boat 2pc Any 6″ X 6 1/2″ 2 X -12AN
Sprint/River Boat 1 pc Any 6″ x 6 1/2″ 2 X -12AN
Rocket/Dart Nat. Mod. Any Special 2 X -12AN

BB Chevrolet

Special

Part Number Application Type Dimension Depth No. of Pickups & Size
Gen 4 V-Drive/K-Class Alum 7″ x 9″ 2 X -12AN
Gen 5&6 V-Drive/K-Class Alum 7″ x 9″ 2 X -12AN
Gen 4 Off Shore Type Steel 5″ x 5″ 2 X -12AN
Gen 5&6 Off Shore Type Steel 5″ x 5″ 2 X -12AN
Gen 4 Grand Nat. Hydro Steel 4 1/4″ x 5 1/2″ 2 X -12AN
Gen 5&6 Grand Nat. Hydro Steel 4 1/4″ x 5 1/2″ 2 X -12AN
KB Olds-Off Shore Steel 5″ x 5″ 2 X -12AN
8.1 Vortec Off shore Steel 5″ x 5″ 2 X -12AN
Merlin Off Shore Steel 5″ x 5″ 2 X -12AN

SB Ford

Additional OptionsCatalog Page

Page 34-35

Page 34-35

Part Number Application Type Dimension Depth No. of Pickups & Size
289-302 Off-Shore Steel Special 2 X -12AN
351-SVO Off-Shore Steel Special 2 X -12AN
Part Number Description
Stroker notches SBC up to 4.00”
Stroker notches BBC up to 4.250”
Stroker notches BBC up to 5.25”
Install additional scavenge pickup
Install 1 x -8AN cylinder head to oil pan drain fitting
Install 4 x -8AN cylinder head to oil pan drain fitting
Powder coat exterior/ special coat Interior
Water drain notch in kickout
Install piston skirt oilers
Main cap dividers
Install dividers in V-8 pan
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