Melling M55HV Oil Pump

4.7 4.7 out of 5 stars | 418 ratings

Price: 52.95

Last update: 12-20-2024


About this item

High Volume
Standard Pressure
25% Increased Volume Over Stock
Cast Iron

Product information

Technical Details


Top reviews from the United States

AJ
5.0 out of 5 stars Excellent product
Reviewed in the United States on June 8, 2024
Using on a marine engine
SandiBallz
5.0 out of 5 stars Fit like a glove on 1983 350
Reviewed in the United States on October 1, 2023
Went on great no issues. Wish they would include the rod and just make it a package deal for 15 bucks more. As ypu can see the difference from stock,it is worth buying.
Customer image
SandiBallz
5.0 out of 5 stars Fit like a glove on 1983 350
Reviewed in the United States on October 1, 2023
Went on great no issues. Wish they would include the rod and just make it a package deal for 15 bucks more. As ypu can see the difference from stock,it is worth buying.
Images in this review
Customer image
G. L.
5.0 out of 5 stars Increased oil pressure and flow on an older engine.
Reviewed in the United States on November 30, 2021
Replaced the oil pump on a motor approximately 22 years since rebuild. Oil pressure around 34 psi when cold start during the summer and was dropping below 10 psi when at operating temperature and idling. Installed the new pump and the cold start oil pressure was around 62 psi at cold start idle and at operating temperature idling oil pressure stays around 44 psi now. Saved me down time and cost in replacing the engine and maybe few more years use out of this one.
Apolinar R.
5.0 out of 5 stars Perfect fit in sbc 283
Reviewed in the United States on December 19, 2022
This oil pump fit perfectly in my small block chevy 283. Havent started it
valiant-one
4.0 out of 5 stars Better order the gasket
Reviewed in the United States on May 24, 2019
They have the recommended items most customers bought with the pump, you would think the manufacturer would include a .99 cent gasket but nope..... most auto parts stores will sell you their pump though which includes the 99 cent gasket. Go figure.
Brandon
5.0 out of 5 stars Great product
Reviewed in the United States on May 12, 2022
Ended up taking two weeks to get it because it was delivered a couple blocks away, but it wasn’t the fault of the seller. Nice high pressure when hot.
killface
5.0 out of 5 stars Great price and quality!
Reviewed in the United States on June 16, 2015
This pump went in a high rpm, performance Chevy 355 with a 7 quart oil pan. Works great for the application. Oil pressure is excellent. If you are using a standard volume/pressure oil pump, and your engine doesn't rev over 7,000 rpm's, I suggest sticking with a new Melling standard volume pump #M55. Even if you put a new cam in or heads or whatever. I've seen these High Volume pumps eat a distributor and/or cam gear within a week on lower revving high horsepower engines. They put a lot of extra load on that distributor gear. Leaves metal shavings all over the engine. Just something to think about. Happy engine building!
Gino
5.0 out of 5 stars Great Hi - Volume pump at a very good price
Reviewed in the United States on July 23, 2020
This was an easy installation on my 327 SBC engine. The price point VS other high volume oil pumps was very good. Have been running it for almost 2 months now and no problems

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