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What is the actual difference between a standard and a High Volume oil pump?

As you can see above, for the high volume version of the big block Chrysler oil pump, we have increased the height of the rotor assembly by about .250" (1/4 inch) so that the volume or "amount" of oil that is pumped is increased by approximately 25%. In order to fit the taller rotors, the case or pump body must be increased in height as well by the same amount. In the above picture, the stock versions of the rotor and pump body are shown on the left, and the taller versions are shown on the right. Because of the height increase, high volume pumps must also use bolts that are longer than the stock oil pump bolts so the thread depth engagement remains the same. We offer oil pump bolt kits for both standard and high volume pumps. Big block Mopar "factory type" cast iron pumps use 3 "short" bolts and one "long" one.

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Item #

Description

Price

63HV

63HV - High Volume Oil Pump
We now offer our factory style cast iron High Volume oil pump assembly, made directly from original Chrysler OEM specs. For engines with extended capacity (deep sump) pans that hold a minimum of 6 quarts, we recommend going with a high volume pump. In a high volume pump, the rotors have been made about 25% taller, so they pump about 25% more oil. We also include our 200-1177 high pressure spring, to make sure the oil is delivered at a higher pressure, which is to be expected in a high performance engine. Completely brand new, assembled and ready to install. Don't forget gaskets and attaching bolts as well (listed separately.)

In Stock

63HP

63HP - High Pressure Oil Pump
We now offer our factory style cast iron High Pressure oil pump assembly, made directly from original OEM specs. For engines which have factory 4 quart capacity oil pans, we have found that the high volume pump can sometimes suck the pan dry, resulting in bearing damage. For those factory capacity (non deep sump) engines, the high pressure pump is a great alternative. You still get the added benefit of oil which is being pumped at a higher pressure, without the added volume which can suck the smaller capacity pans dry. Completely brand new, assembled and ready to install. Don't forget gaskets and attaching bolts as well (listed separately.)

In Stock

M63HV

Melling M-63HV High Volume Oil Pump - New
Genuine Melling M-63HV High volume oil pump assembly. For engines with extended capacity (deep sump) pans, we recommend the Melling high volume pump. Completely brand new, assembled and ready to install. Don't forget gaskets and attaching bolts as well (listed separately.)

In Stock

200-1189

Billet Aluminum 19GPM Oil Pump
Our new billet aluminum oil pump is the same design used in the Hemi Pro Stock and Top Fuel engines. The rotors in this pump are not only made taller (like a regular high volume style pump) but they are also increased in diameter, making them as large as you can possibly fit under the pump cover. This results in a pump which will EASILY flow over 19 gallons per minute of oil, which is an amazing amount of oil. And because of the newer, more rounded design of the rotors, they are able to pump this amount of oil while using up less horsepower than the standard style pumps. AND - less horsepower driving the rotors also has the added benefit of being easier on the drive gear, meaning your bronze distributor gear (if you are using a bronze one) will have a much extended life on the street. While a regular "high volume" pump gives you about a 25% increase in volume, at over 19 gallons per minute, these could be considered a "SUPER high volume pump. These larger rotors also require a larger diameter o-ring, which is included with the pump. Overall, for the best looking, highest quality, best performing oil pump, these just cannot be beat. Great for the track as well as for street use. These can be used with standard cast iron type covers, or use our 200-1180 Aluminum cover to make a fully billet aluminum pump.

In Stock

109-1561

Bolt Kit - Oil Pump High Volume (63HV) - Performance 12 PT
Our Performance 12 point bolt kits are a nice looking option that features grade 8 strength, black oxide coating, and with a price that doesn't break the bank. This kit includes all the bolts you need to attach a HIGH VOLUME (63HV) Oil Pump to the engine block. Custom matching, small diameter washers are also included with this kit.

In Stock

109-1565

Bolt Kit - Oil Pump - High Pressure or Stock- Performance 12PT
Our Performance 12 point bolt kits are a nice looking option that features grade 8 strength, black oxide coating, and with a price that doesn't break the bank. This kit includes all the bolts you need to attach a factory oil pump, stock replacment or HIGH PRESSURE (63HP) Oil Pump to the engine block. Custom matching, small diameter washers are also included with this kit.

In Stock

109-1502

High Strength Bolt Kit for High Volume Oil Pump - New
Bolt kit for 63HV High Volume Oil Pump. Because the High Volume pumps use taller rotors and a larger body, for proper thread depth engagement when bolting the pump to the block, they require slightly longer bolts than a standard pump would. We've researched the exact size needed, sourced the bolts in a high strength Grade 8 fully plated version, and packaged them into a neat kit complete with plated split washers, just like the factory used.

In Stock

109-1528

High Strength Bolt Kit for High Pressure or Stock Oil Pump
We offer this bolt kit for the 63HP HIGH PRESSURE or the factory stock Oil Pumps. We've researched the exact size needed, sourced the bolts in a high strength Grade 8 fully plated version, and packaged them into a neat kit complete with plated split washers, just like the factory used.

In Stock

109-1574

Oil Pump O Ring Rebuild Kit - VITON - For Cast Iron Pumps

We have gone to great lengths to custom make these Big Block Mopar O-ring kits in premium VITON material. Viton is made by Dupont, and has much greater resistance to high temperatures than standard rubber. It also doesn't have a tendency to dry out and shrink over time while sitting, which makes it a great choice for cars which will sit for months or weeks in between being driven, virtually elimating leaks and cracking, etc. Overall, Viton is considered a top of the line material to use for any area inside an engine which is sealed by a rubber material. There is no other way to get VITON into your oil pump besides ordering these kits, and replacing the O-rings yourself, which is super easy to do by just removing the two bolts which hold the cover onto the body of the pump. These O-ring kits are very convienient for when oil pumps are being rebuilt and/or disassembled. These kits include all three O-rings used in a big block Chrysler oil pump. The small thin one which seals the neck of the pump to the engine block (shown in the picture as #1), the small thick one which seals the oil passage from the pump body to the cover (shown in the picture as #2), and the large one which seals the rotor gears to the cover (shown in the picture as #3). Avoid oil leaks and blowouts with this easy to change and economically priced kit. These fit Melling and other similar style CAST IRON pumps, including standard, high pressure and high volume.

In Stock

144-1002

Oil Pump Gasket
We now offer replacement oil pump gaskets. For some strange reason, these are not offered separately or included in ANY gasket sets from any of the major gasket suppliers such as Fel-pro, Victor, Rol, etc, and they are nearly impossible to find. Many of the gasket companies list "Oil Pump Gasket" in their catalogs, but under the description, the part is listed as an "o-ring", so it is actually the standard rubber o-ring which fits around the drive area of the pump, not the gasket. So, we've sourced these hard to find gaskets and now offer them for sale separately. Another "pain in the butt" big block Mopar problem made simple and inexpensive by 440 Source!

In Stock

109-1543

Oil Pump O-ring for M63HV or M63HP
This is the replacement o-ring which fits around the shaft of the oil pump which slides up into the block. Great for replacing missing, damaged or dried out/cracked originals.

In Stock

200-1138

Oil Pump Priming Shaft
Our oil pump priming shafts are perfect for priming your engine before that first startup. These specially hardened steel priming shafts fit on any 3/8 in. or larger drill and will pressurize oil galleys to ensure against dry starts and ruining your engine. Don't fire up that engine without pre-lubing (priming) it thoroughly with oil and our oil pump priming shafts. Compare to Mopar Performance P4286800.

In Stock

200-1179

DeLuxe Engine Priming Tool
Our new "DeLuxe" engine oil priming tool is a super cool item that every Mopar guy should have in their toolbox. Featuring a CNC machined 6061 Aluminum housing with sealed ball bearings, this pops into the distributor hole and holds the priming rod exactly straight. But more importantly, it takes all the pressure off the oil pump rotors. The intermediate shaft in a big block Mopar is designed to "float" above the oil pump gears. Normally it's recommend to check for .050"-.070" of clearance between the hex end (bottom) of the intermediate shaft and the bottom of the oil pump gear during assembly. If there is no space there, and the shaft is bottoming out into the gear, it will press on the gear, causing it to grind into and score the oil pump cover. With a standard priming tool, it's very hard to take the pressure off of the tool when you've got a large electric 1/2" drill hanging off it it. With the adjustable collars on this tool, you can set the endplay exactly where you want it. And the adjustable collars also allow you to use it with any engine type, such as RB, B or even small block engines!

In Stock

200-1093

Adjustable Oil Pressure Regulator
Our new adjustable oil pressure relief valve is a great accessory for your big block Mopar. This unit simply screws in and replaces the original plug which holds in the oil pressure relief plunger and spring. This plug is drilled and tapped in the center with an adjusting screw which can be screwed in or out as desired. The screw is surrounded by a special liquid tight o-ring seal to eliminate leaks, and held in place by a nylon lock nut & washer. Screwing the plug in will put more pressure on the relief spring and raise the oil pressure, while screwing the plug out will release the pressure on the spring, and cause the oil pressure to drop. You can use this to adjust your oil pressure where you like it (within a reasonable range), even while the engine is running! (Challenge your Chevy buddies to try that one!) Works great for offsetting pressure loss or gain from specific bearing clearances, certain oil viscosities, etc, etc. Works with ALL oil pumps including factory pumps, aftermarket Melling pumps and Racing style billet aluminum pumps.

In Stock

138-1017

Oil Pressure Sending Unit - W/Gauge
We offer oil pressure sending units. There were two different types used. This one is for cars which came from the factory with oil pressure gauges (not lights.) Use the other type (listed below) for cars which came with idiot lights.

In Stock

138-1018

Oil Pressure Switch - W/ Light
We offer oil pressure sending units. There were two different types used. This one is for cars which came from the factory with oil pressure "Idiot lights" (not gauges.) Use the other type (listed separately) for cars which came with factory gauges.

In Stock

138-1004

Heavy Duty Oil Filter - 5" long
These heavy duty filters have extra pleating inside for efficient, high flow filtering and are the 5" long version. A great choice at a great price!

In Stock

138-1005

Heavy Duty Oil Filter - Extra Capacity
We also offer these hard to find EXTRA CAPACITY heavy duty oil filters. The canister height on these has been increased an extra 1 1/2 inches, to about 7 inches to make sure the oil pump has plenty of capacity. Other than a deep sump oil pan, this is the only way to increase the capacity of your oil system, and it's kept right at the supply side of the oil pump, just where it's needed most. A nice detail and an inexpensive way to get a little extra oil that most builders overlook. Don't forget to check to make sure you have clearance in the chassis for the extra length.

In Stock

110-1004

Billet Aluminum Oil Filter - ReUsable
Our new billet aluminum reusable oil filter will last a lifetime. Never buy another oil filter again. The two piece housing unscrews to reveal a washable filter element of finely woven stainless steel mesh. These fiter all particles down to 45 microns, and should be washed every 3000 miles. Also features full o-ring seals and integral magnet to trap any large particles (great for inspection during cleaning.) A super nice product now available at a fraction of the price of similiar units on the market. Click on "View additional images" button to see more pictures of the filter element, etc.

In Stock

200-1140

Engine Block Oil Passage Enlargement Drill Bit 12
Big block Mopars generally have a very good oiling system from the factory. However, one easy modification recommended by Mopar Performance is to enlarge the passages which go from the passenger side main oil galley to the main bearings. This allows extra oil to both the main and rod bearings, and only takes a few minutes to do with any hand drill. We carry the special 12" long drill bit required, which should be a standard part in any mechanic's tool box who is building high performance big block Mopar engines. Click on the "view additional images" button to see a diagram of which exact oil passages to enlarge with this drill bit.

In Stock

200-1174

Adapter, Oil pump cover to oil filter base
We offer this hard to find adapter, which screws into the front of the oil pump and allows the oil filter to screw on. Great for replacing missing or damaged originals. Originally sold as Chrysler part numbers 1739619 and 4095283. Shown as item #5 (circled in red) in the parts diagram.

In Stock

200-1176

Oil Pressure Relief Valve Plunger
We offer the hard to find oil pressure relief valve plunger. Great for replacing worn out, missing or damaged originals. Originally sold as Chrysler part number 2120764 and 2463541. Shown as item #9 (circled in red) in the parts diagram.

In Stock

200-1177

Oil Pressure Relief Valve Spring - High Pressure
We offer these high pressure oil pump relief valve springs. These are the same springs which used to be sold by Mopar Performance and can be used in any pump to increase the pressure. These are the same springs supplied by Melling in their M63HV (high volume) and M63HP (high pressure) pumps. These springs will "generally" produce about 70 PSI at above idle RPM's, however pressure can vary greatly depending on bearing clearance, oil viscosity and a host of other factors, so every engine can be different. We recommend using our 200-1093 adjustable oil pressure regulator (along with this spring) to dial in your oil pressure exactly where you want it to be. This is best to do with a drill while priming your engine.

In Stock

109-1573

Oil Pump O Ring Rebuild Kit - Nitrile - For Cast Iron Pumps
We now carry these convenient O-ring kits for when oil pumps are being rebuilt and/or disassembled. These kits include all three O-rings used in a big block Chrysler oil pump. The small thin one which seals the neck of the pump to the engine block (shown in the picture as #1), the small thick one which seals the oil passage from the pump body to the cover (shown in the picture as #2), and the large one which seals the rotor gears to the cover (shown in the picture as #3). Avoid oil leaks and blowouts with this easy to change and economically priced kit. These fit Melling and other similar style CAST IRON pumps, including standard, high pressure and high volume.

In Stock

63HV - High Volume Oil Pump

In Stock

63HP - High Pressure Oil Pump

In Stock

Melling M-63HV High Volume Oil Pump - New

In Stock

Billet Aluminum 19GPM Oil Pump

In Stock

Bolt Kit - Oil Pump High Volume (63HV) - Performance 12 PT

In Stock

Bolt Kit - Oil Pump - High Pressure or Stock- Performance 12PT

In Stock

High Strength Bolt Kit for High Volume Oil Pump - New

In Stock

High Strength Bolt Kit for High Pressure or Stock Oil Pump

In Stock

Oil Pump O Ring Rebuild Kit - VITON - For Cast Iron Pumps

In Stock

Oil Pump Gasket

In Stock

Oil Pump O-ring for M63HV or M63HP

In Stock

Oil Pump Priming Shaft

In Stock

DeLuxe Engine Priming Tool

In Stock

Adjustable Oil Pressure Regulator

In Stock

Oil Pressure Sending Unit - W/Gauge

In Stock

Oil Pressure Switch - W/ Light

In Stock

Heavy Duty Oil Filter - 5" long

In Stock

Heavy Duty Oil Filter - Extra Capacity

In Stock

Billet Aluminum Oil Filter - ReUsable

In Stock

Engine Block Oil Passage Enlargement Drill Bit 12

In Stock

Adapter, Oil pump cover to oil filter base

In Stock

Oil Pressure Relief Valve Plunger

In Stock

Oil Pressure Relief Valve Spring - High Pressure

In Stock

Oil Pump O Ring Rebuild Kit - Nitrile - For Cast Iron Pumps

In Stock