Small-Block Chevy Oil Pumps - The Great Oil Pump Test
Mix A Big Batch Of Pressure, Volume, Oil Viscosity, Temperature, And Engine Power And You Have The Makings For The Great Oil Pump Test
In this comparison, you can see the major difference between a high-volume small-block pump gear (left) and the Rat motor gear (right). The Rat motor pump enjoys a larger diameter and more pump teeth that should create a more stable output curve.
By the time Brule attacked the fourth pump, he had the swap down to about 20 minutes. We also maintained the exact same volume of oil for each test to ensure an accurate test.
All tests were performed using a K&N oil filter that our testing revealed had a very low flow restriction. The case thickness is also much greater than regular oil filters.
We used Lucas oil for all the testing. The 30W was the only nonsynthetic we tested. From the testing, it appears the 5W-20 might be a good choice for a performance street engine.
| Parts List |
| Description | PN | Source | Price |
| Dart SHP 372ci short-block | 03113722 | Summit Racing | $2,975.95 |
| Dart 200cc Pro 1 platinum | 11411113 | Summit Racing | $1,637.90 |
| Comp Cams XR294HR kit | K08-443-8 | Summit Racing | $755.95 |
| Weiand Air Strike | 8501 | Summit Racing | $202.95 |
| Holley Ultra 950 HP carb | 0-80676 | Summit Racing | $781.75 |
| Milodon SBC stock | 18755 | Summit Racing | $26.95 |
| Milodon SBC vol. | 18750 | Summit Racing | $39.95 |
| Milodon SBC press/vol. | 18770 | Summit Racing | $47.95 |
| Milodon BBC | 18760 | Summit Racing | $45.95 |
| Milodon oil pan | 30902 | Summit Racing | $181.95 |
| Fel-Pro one-piece pan gasket | QOS34510T | Summit Racing | $31.95 |
| Large 3/4-inch pickup | 18301 | Summit Racing | $42.95 |
| Small-block pickup | 18314 | Summit Racing | $39.95 |
| Oil pump driveshaft | 23050 | Summit Racing | $15.95 |
| Rear pan baffle | 32500 | Summit Racing | $5.95 |
| Lucas 30W oil, 12 qt. | 10053 | Summit Racing | $37.69 |
| Lucas 20W-50, 1 qt. | 10054-1 | Summit Racing | $7.95 |
| Lucas 5W-20, 1 qt. | 10082-1 | Summit Racing | $7.95 |
| Lucas 0W-20, Pro Stock, 5 qt. | 10294 | Summit Racing | $42.95 |
| Lucas 0W-10, Pro Stock, 5 qt. | 10289 | Summit Racing | $42.95 |
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COMP Cams
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Lucas Oil Products
Corona
CA
N/A
www.lucasoil.com
|
Dart Machinery
353 Oliver St.
Troy
MI
48084
248-362-1188
www.dartheads.com
|
Milodon
2250 Agate Ct.
Simi Valley
CA
93065
805-577-5950
www.milodon.net
|
Holley Performance Products
1801 Russellville Rd.
Bowling Green, KY 42101
KY
42101
270-782-2900
www.holley.com
|
Westech Performance Group
11098 Venture Dr., Unit C
Mira Loma
CA
91752
9-09/-685-4767
www.westechperformance.com
|
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