Melling has introduced a new 'shark tooth' performance pump featuring helical asymmetrical gears that significantly reduce pressure ripple and improve oil flow, enhancing overall engine performance. The pump is designed to operate smoother and more efficiently with various configurations that provide increased volume over stock. Benefits include improved distributor operation, reduced internal leakage, and quicker priming capabilities.

2. Melling has improved the heart-beat
of the traditional internal gear pump.
It is now significantly smoother
through the use of new helical
asymmetrical gears. The new gear
design provides the engine with an
improved flow of oil without the usual
pulsing found in traditional gear
pumps. The reduction in the pressure
ripple from the pump will also provide
benefits to the distributor and
camshaft drive.
Introduction:

3. The Birth of the Shark Tooth Performance
Pump
During its R&D phase the new
helical asymmetrical gear project
was code named the “Shark Tooth
Pump” due to the appearance of
the new helical asymmetrical gears.
This is appropriate since these new
gears are smoother, tighter and
quicker than any other gear pump
we have available. With a history
of over 350 oil pumps that is saying
something.

4. Benefits of Helical Asymmetrical
Gears• Smoother….
• Significant reduction in pressure ripple (pulsing)
• Reduction in torque ripple in pump drive
• Improved distributor operation - reduction in spark scatter
• Improved distributor gear wear & intermediate shaft wear
• Tighter….
• Improved sealing of gear tips to housing
• Reduced internal leakage
• Improved efficiency and performance
• Quicker….
• Increased inlet vacuum
• Primes faster

5. 70% Reduction in pressure ripple @
6500rpm

6. Available in Three
Configurations
• Stage 1
• 10550S & 10551S
• New Cast Iron Housing & Cover
• 25% Increase in Volume over stock
• For 5/8” and 3/4” traditional press fit screens
• Stage 2
• 10552S & 10555S
• New Cast Iron Housing & Cover
• 10% & 25% Increase in Volume over stock
• Patented design
• ¾” traditional press fit & exclusive bolt-on screens
• Stage 3
• Billet aluminum pumps for Circle Track and Street-Strip
• 6061-T6 Coated Billet Aluminum Housing & Cover
• 25% Increase in Volume over stock
• Patented design
• Integral screen design
For Small Block V-8 Chevy
Engines

7. Available in Three
Configurations
• Stage 1
• 10550S & 10551S
• New Cast Iron Housing & Cover
• 25% Increase in Volume over stock
• For 5/8” and 3/4” traditional press fit screens
• Stage 2
• 10552S & 10555S
• New Cast Iron Housing & Cover
• 10% & 25% Increase in Volume over stock
• Patented design
• ¾” traditional press fit & exclusive bolt-on screens
• Stage 3
• Billet aluminum pumps for Circle Track and Street-Strip
• 6061-T6 Coated Billet Aluminum Housing & Cover
• 25% Increase in Volume over stock
• Patented design
• Integral screen design
For Small Block V-8 Chevy
Engines