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Gaskets & Sets - Powerhead & Upper Case Gasket

BBC Gen. 4 Oil Filter Relocation Kit - Standard

Your Price:
$559.99

BBC 1000HP Gen. 4 Oil Filter Relocation Kit - Standard

620-912 + Option(s)

Take the hassle out of getting the correct parts and adapters to relocate your oil filter. This kit includes the correct fittings, hose, block adapter and remote filter head for a 1000HP BBC Gen. 4 application. The Xtreme edition kit includes the HP remote oil filter head,  and push on hose with the appropriate fittings.

Note: Uses -12 AN fittings.


BBC Gen. 4 Oil Filter Relocation Kit - Standard

Your Price:
$599.99

BBC 1000HP Gen. 4 Oil Filter Relocation Kit - Xtreme

620-910 + Option(s)

Take the hassle out of getting the correct parts and adapters to relocate your oil filter. This kit includes the correct fittings, hose, block adapter and remote filter head for a BBC Gen. 4 application. The Xtreme edition kit includes the HP remote oil filter head,  and nylon braided hose with the appropriate fittings.

Note: Uses -12 AN fittings.


BBC Gen. 4 Oil Filter Relocation Kit - Standard

Your Price:
$759.99

BBC 1000HP Gen. 4 Oil Filter Thermostatic Relocation Kit - Standard

620-913 + Option(s)

Take the hassle out of getting the correct parts and adapters to relocate your oil filter. This kit includes the correct fittings, hose, block adapter and remote filter head for a BBC Gen. 4 application. The standard edition kit includes the HP remote oil filter head, thermostatic adapter and push on hose with the appropriate fittings.

Note: Uses -12 AN fittings.


BBC Gen. 4 Oil Filter Relocation Kit - Standard

Your Price:
$799.99

BBC 1000HP Gen. 4 Oil Filter Thermostatic Relocation Kit - Xtreme

620-911 + Option(s)

Take the hassle out of getting the correct parts and adapters to relocate your oil filter. This kit includes the correct fittings, hose, block adapter and remote filter head for a BBC Gen. 4 application. The Xtreme edition kit includes the HP remote oil filter head, thermostatic adapter and nylon braided hose with the appropriate fittings.

Note: Uses -12 AN fittings.


BBC Gen. 4 Oil Filter Relocation Kit - Standard

Your Price:
$559.99

BBC 1000HP Gen. 5/6 Oil Filter Relocation Kit - Standard

620-917 + Option(s)

Take the hassle out of getting the correct parts and adapters to relocate your oil filter. This kit includes the correct fittings, hose, block adapter and remote filter head for a BBC Gen. 5/6 application. The standard edition kit includes push on hose and the appropriate fittings.

Note: Uses -12 AN fittings.


BBC Gen. 4 Oil Filter Relocation Kit - Standard

Your Price:
$599.99

BBC 1000HP Gen. 5/6 Oil Filter Relocation Kit - Xtreme

620-915 + Option(s)

Take the hassle out of getting the correct parts and adapters to relocate your oil filter. This kit includes the correct fittings, hose, block adapter and remote filter head for a BBC Gen. 5/6 application. The Xtreme edition kit includes Nylon braided hose and the appropriate fittings.

Note: Uses -12 AN fittings.


BBC Gen. 4 Oil Filter Relocation Kit - Standard

Your Price:
$699.99

BBC 1000HP Gen. 5/6 Oil Filter Thermostatic Relocation Kit - Standard

620-918 + Option(s)

Take the hassle out of getting the correct parts and adapters to relocate your oil filter. This kit includes the correct fittings, hose, block adapter and remote filter head for a BBC Gen. 5/6 application. The standard edition kit includes the HP remote oil filter head, thermostatic adapter and push on hose with the appropriate fittings.

Note: Uses -12 AN fittings.


BBC Gen. 4 Oil Filter Relocation Kit - Standard

Your Price:
$799.99

BBC 1000HP Gen. 5/6 Oil Filter Thermostatic Relocation Kit - Xtreme

620-916 + Option(s)

Take the hassle out of getting the correct parts and adapters to relocate your oil filter. This kit includes the correct fittings, hose, block adapter and remote filter head for a BBC Gen. 5/6 application. The Xtreme edition kit includes the HP remote oil filter head, thermostatic adapter and nylon braided hose with the appropriate fittings.

Note: Uses -12 AN fittings.


BBC Gen. 4 Oil Filter Relocation Kit - Standard

Your Price:
$399.99

BBC Gen. 4 Oil Filter Relocation Kit - Standard

620-900 + Option(s)

Take the hassle out of getting the correct parts and adapters to relocate your oil filter. This kit includes the correct fittings, hose, block adapter and remote filter head for a BBC Gen. 4 application. Includes XRP Push-on Ensure Clamps that are self tensioning for severe race and high temp applications. A must for high heat and oil line applications like this, ensuring a secure seal without damage to the hose construction. For installation and removal of hose clamps, specially designed pliers are available (see related parts).

Note: Uses -10 AN fittings.


BBC Gen. 4 Oil Filter Relocation Kit - Standard

Your Price:
$559.99

BBC Gen. 4 Oil Filter Relocation Kit with Head Mount Bracket - Standard

620-901 + Option(s)

Take the hassle out of getting the correct parts and adapters to relocate your oil filter. This kit includes the correct fittings, hose, block adapter and cylinder head mount filter head for a BBC Gen. 4 application. Includes XRP Push-on Ensure Clamps that are self tensioning for severe race and high temp applications. A must for high heat and oil line applications like this, ensuring a secure seal without damage to the hose construction. For installation and removal of hose clamps, specially designed pliers are available (see related parts).

Note: Uses -10 AN fittings.


BBC Gen. 4 Oil Filter Relocation Kit - Standard

Your Price:
$399.99

BBC Gen. 5/6 Oil Filter Relocation Kit - Standard

620-905 + Option(s)

Take the hassle out of getting the correct parts and adapters to relocate your oil filter. This kit includes the correct fittings, hose, block adapter and remote filter head for a BBC Gen. 5/6 application. Includes XRP Push-on Ensure Clamps that are self tensioning for severe race and high temp applications. A must for high heat and oil line applications like this, ensuring a secure seal without damage to the hose construction. For installation and removal of hose clamps, specially designed pliers are available (see related parts).

Note: Uses -10 AN fittings.


BBC Gen. 4 Oil Filter Relocation Kit - Standard

Your Price:
$559.99

BBC Gen. 5/6 Oil Filter Relocation Kit with Head Mount Bracket - Standard

620-906 + Option(s)

Take the hassle out of getting the correct parts and adapters to relocate your oil filter. This kit includes the correct fittings, hose, block adapter and remote filter head and cylinder head bracket for a BBC Gen. 5/6 application. Includes XRP Push-on Ensure Clamps that are self tensioning for severe race and high temp applications. A must for high heat and oil line applications like this, ensuring a secure seal without damage to the hose construction. For installation and removal of hose clamps, specially designed pliers are available (see related parts).

Note: Uses -10 AN fittings.


Big Block Chevy Gen 5 & 6 Thermostatically Controlled Engine Block Adapter
Your Price:
$279.99

Big Block Chevy Gen 5 & 6 Thermostatically Controlled Engine Block Adapter

625-7704

Big Block Chevy Gen 5 & 6 Thermostatically Controlled Engine Block Adapter

Thermostatically Controlled Engine Block Adapter Gen 5/6 BBC

Maintaining proper engine oil temperature has become critical to the success or failure of today’s performance marine engines. Prolonged use of marine engines in conditions where oil cannot reach its optimum working temperatures will result in sludge formation and crankcase dilution which leads to excessive wear especially in the cylinder bores and bearing surfaces. A thermostat assembly combats this by permitting 90% of the engines oil to bypass the cooler during warm up. The balance of the oil flow is allowed to fl ow through the cooler maintaining constant pressure and preventing air pockets while eliminating cold oil shock. This reduces scuffing and premature wear and inhibits engine blow-by. As engine oil temperature reaches its optimum operating temperature moisture and impurities that often cause a milky condition are eliminated.

Until now oil temp was controlled either by some guess of components or by the professional engine builders through the use of some sort of external engine oil thermostat. While these external oil filter/ thermostats were very effective they were also very large and very bulk . Making them hard to mount and creating a maze of plumbing. The problem was the only available parts up until now couldn’t move the necessary oil fl ow to be mounted anywhere. else. But thanks to Hardin marine and their engineering staff they took to solving this decade long nuisance. Hardin Marine has developed this new thermostatically controlled engine block mounted product. With this unit all oil temperature is now controlled through a integral 212 degree oil thermostat. The large 3/4NPT oil inlets/outlets assure the maximum amount of oil can be fl owed through the unit. So no more maze of external plumbing, no more big bulky external mounted components just the standard (2) lines to the filter and the standard (2) lines to your cooler. Sometimes evolution comes in the form of the simplest of things but this is one that has been deeply sought after. Overall Height: 4-3/4"



Big/Small Block Chevy Gen 4 Thermostatically Controlled Engine Block Adapter
Your Price:
$299.99

Big/Small Block Chevy Gen 4 Thermostatically Controlled Engine Block Adapter

625-7703

Big/Small Block Chevy Gen 4 Thermostatically Controlled Engine Block Adapter

Thermostatically Controlled Engine Block Adapter Gen 4 BBC / SBC

Maintaining proper engine oil temperature has become critical to the success or failure of today’s performance marine engines. Prolonged use of marine engines in conditions where oil cannot reach its optimum working temperatures will result in sludge formation and crankcase dilution which leads to excessive wear especially in the cylinder bores and bearing surfaces. A thermostat assembly combats this by permitting 90% of the engines oil to bypass the cooler during warm up. The balance of the oil flow is allowed to fl ow through the cooler maintaining constant pressure and preventing air pockets while eliminating cold oil shock. This reduces scuffing and premature wear and inhibits engine blow-by. As engine oil temperature reaches its optimum operating temperature moisture and impurities that often cause a milky condition are eliminated.

Until now oil temp was controlled either by some guess of components or by the professional engine builders through the use of some sort of external engine oil thermostat. While these external oil filter/ thermostats were very effective they were also very large and very bulk . Making them hard to mount and creating a maze of plumbing. The problem was the only available parts up until now couldn’t move the necessary oil fl ow to be mounted anywhere. else. But thanks to Hardin marine and their engineering staff they took to solving this decade long nuisance. Hardin Marine has developed this new thermostatically controlled engine block mounted product. With this unit all oil temperature is now controlled through a integral 212 degree oil thermostat. The large 3/4NPT oil inlets/outlets assure the maximum amount of oil can be fl owed through the unit. So no more maze of external plumbing, no more big bulky external mounted components just the standard (2) lines to the filter and the standard (2) lines to your cooler. Sometimes evolution comes in the form of the simplest of things but this is one that has been deeply sought after. Overall Height: 4-3/4"

Bottom Entry Billet Engine Oil Block Adapter - SBC & BBC
Your Price:
$69.99

Bottom Entry Billet Engine Oil Block Adapter - SBC & BBC

240-22-580

Bottom Entry Billet Engine Oil Block Adapter - Small Block & Big Block Chevy includes Merlin Blocks

These machined billet aluminum bypass plates are needed when using a remote oil filter. O-rings are captured in the plate for a tight seal against the block surface, and are installed under bolt heads for leak-free performance. Drilled and tapped to accept -10 ORB fittings.Includes all mounting hardware.

When a marine engine is installed in the bilge of a boat there is little or no access to the bottom of the engine therefore a remote mounted oil filter is required. An oil filter block off adapter must be bolted on the original oil filter location to accomplish this. These block off adapters are constructed of 6061-T6 billet aluminum and then beautifully anodized for superior corrosion resistance in harsh environments. They are completely O-ringed on the sealing surfaces to eliminate oil leaks, copper sealing washers are NOT used under the mounting bolt heads.


GM LS Series Remote Oil Filter Adapter
Your Price:
$99.99

GM LS Series Remote Oil Filter Adapter - 90 Degree

240-22-632

GM LS Series Remote Oil Filter Adapter - 90 Degree

This billet aluminum adapter is designed to install under the pan rail of  LS1 pans and provide inlet and outlet ports for installing lines to a remote oil filter. Adapter features o-ring seals between the pan and the adapter and 1-1/16" -12 AN oil inlet and outlet ports.

  • 1/2 NPT Inlet and Outlet 
  • Ports are set at 90 Degrees
  • Lightweight Billet Design

GM LS Series Remote Side Mount Oil Filter Adapter
Your Price:
$200.95

GM LS Series Remote Side Mount Oil Filter Adapter

625-4526

GM LS Series Remote Side Mount Oil Filter Adapter

Earl's billet side mount oil cooler adapters are the slick way to add an oil cooler to your GM LS or Gen-V LT engine. The slim design of these adapters clear most headers and other components and feature -10 AN male connections. These adapters are black anodized and use O-Ring seals for a leak free installation. Fits OEM & Holley Wet Sump oil pans only (Does not Fit Dry Sump Engines).

  • Billet Aluminum w/ Black Anodized Finish
  • Includes 0-Ring Seal & Hardware
  • (2) 1/8” NPT Accessory Ports
  • -10 AN Male Connections
  • Available w/ 180 Degree Thermostat
  • Add an Earl’s Oil Cooler and AN Plumbing to Complete the Installation

O-Ring Kit for 625-7914 Oil Adapter
Your Price:
$8.95

O-Ring Kit for 625-7914 Oil Adapter

625-7911

  • Designed to fit 625-7914 Gen. 4 Oil Adapter.
  • Kit Includes 6 O-Rings.
  • Note: Picture is example of O-Rings, not actual product.

Replacement Oil Adapter Inlet For Hardin Thermostatic Oil Adapters
Your Price:
$21.99

Replacement Oil Adapter Inlet For Hardin Thermostatic Oil Adapters

625-7766

Replacement inlet fitting for Hardin thermostatic oil adapters 625-7703 and 625-7704.

Stainless Steel Oil Filter Bypass Eliminator
Your Price:
$59.99

Stainless Steel Oil Filter Bypass Eliminator - BBC Gen 4

625-7918

Stainless Steel Oil Filter Bypass Eliminator - BBC Gen 4

This strong stainless steel mount does not have a bypass so it eliminates the possibility of unfiltered oil entering the engine while replacing the weak and often failed factory unit.

When a marine engine is installed in the bilge of a boat there is little or no access to the bottom of the engine therefore a remote mounted oil filter is required.  An oil filter block off adapter must be bolted on the original oil filter location to accomplish this.  These block off adapters are constructed of stainless steel.  They are completely O-ringed on the sealing surfaces to eliminate oil leaks, copper sealing washers are NOT used under the mounting bolt heads.