Page 291 - 2022-23 Auto Performance Open Wheel Catalog

Select Performance Oil Pumps
Select Performance pumps have hardened steel gears and cast, manganese phosphate-coated hous- ings. Some models include an additional cover shaft support. Small block Chevy pumps include interme- diate shaft.
“Shark Tooth Pump”
Improves the heartbeat 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 re- duction in the pressure ripple from the pump will also provide benefits to the distributor and camshaft drive.
SMOOTHER
• Significant reduction in pressure ripple (pulsing)
• Reduction in torque ripple in pump drive
• Improved distributor operation - reduction in spark scatter • Reduced distributor gear wear & intermediate shaft wear
Part No.
Volume Inlet Increase Dia.
Shaft Support
Pick-up Screen
Anti-Cavitation Grooves (Race Only)
Small Block Chevy 265-400
SB Chevy Billet Aluminum
TIGHTER
• Improved sealing of gear tips to housing • Reduced internal leakage
• Improved efficiency and performance
QUICKER
• Increased inlet vacuum • Primes faster
Part No.
Description
MEL10550ST
25%
5/8"
No
Press-In
No
MEL10551ST
25%
3/4"
No
Press-In
No
MEL10552ST
10%
3/4"
Yes
Bolt-On
No
MEL10553ST
0%
5/8"
No
Press-In
No
MEL10554ST
0%
3/4"
No
Press-In
No
MEL10555ST
25%
3/4"
Yes
Bolt-On
No
MEL10550ST
SB Chevy, 25% Additional Volume, 5/8" Dia. Press-Fit Pickup Screen
MEL10551ST
SB Chevy, 25% Additional Volume, 3/4" Dia. Press-Fit Pickup Screen
MEL10552ST
SB Chevy, 10% Additional Volume,
3/4" Dia. Bolt-On or Press-Fit Pickup Screen
MEL10555ST
SB Chevy, 25% Additional Volume,
3/4" Dia. Bolt-On or Press-Fit Pickup Screen
Circle Track Racing Oil Pumps
Rigid billet aluminum housed oil pumps are
engineered to endure the rigors of circle track
racing. Pumps are manufactured from 6061-T6
aluminum that has been hard coat anodized for
added durability, fitted with billet steel gears,
and an integrated pickup screen designed for use
with 7" deep oil pans. Offered in standard or high-vol- ume versions, pumps are sold complete with chrome moly steel drive shaft, stud kit, and (2) relief springs.
Part No. Description
Stock Replacement Oil Pumps
Every Melling oil pump is 100% pressure tested. Idle and bypass pressure are checked to guarantee work- manship before every oil pump leaves the factory.
Small Block Chevy Intermediate Shaft MELIS55E Stress-proof steel shaft offers maximum strength, added durability,
MEL10050ST-700CT
SB Chevy High-Volume Oil Pump, 7" Deep Oil Pan
MEL10055ST-700CT
SB Chevy Standard-Volume Oil Pump, 7" Deep Oil Pan
and includes a steel guide.
Engine Blocks Sleeves
Part No.
Overall Length
I.D. O.D.
Wall Thickness
MEL590231
6.250"
4.020"
4.303"
1/8"
MEL590261
6.250"
4.095"
4.378"
1/8"
MELCSL157
7.8750"
4.000"
4.1905"
3/32"
Standard Volume
SB Chevy
High High Pressure Volume
MELM55
MELM55A
MELM55HV
Rico Abreu
JB Art & Image
Jadon Rogers
Mike Reusche
2022-23 PARTS AND ACCESSORIES
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