Gaskets and Seals-store.440source.com

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Price

112-1000

Complete Engine Gasket Kit
You can't beat our gasket kit for the price. This kit will fit all big block engines, and is supplied with composite head gaskets complete with steel reinforcement around the cylinder area. Beware of some kits that supply cheaper steel shim head gaskets which don't work with aluminum heads. This kit includes the following gaskets: Cylinder Heads (Steel Reinforced Composite) Valve Covers (Cork) Exhaust Manifolds Timing Cover Timing Cover Seal (to Damper) Water Pump Water Pump Housing Water Neck Outlet (Thermostat) Fuel Pump Misc. Rubber O-Rings Rear Main Seal (end strips not included) Oil Drain Plug (white plastic washer) Oil Pan Intake Valve Seals (Viton Positive) Exhaust Valve Seals (Nitrile Umbrella) This kit does not include the valley pan (bathtub) steel intake gasket or oil pump to block gasket. These are listed separately. Compressed thickness on these head gaskets is .051" Gaskets may differ slightly from photo in appearance, type, color etc. Sets will occasionally change what specific gaskets are included, so the information in the list above is up-to-date for the sets we currently have on the shelf. Please use the list above for accurate information, not the picture. If you are running a windage tray, don't forget an extra oil pan gasket (112-1003) will also be required.

In Stock

144-1000

Viton Rear Seal
We also offer an upgraded VITON fluoroelastomer rear seal. 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. Overall, Viton is considered a top of the line material to use for rear seal applications. One more way to combat those pesky rear seal leaks. These fit all big blocks, all years. Our 144-1000 kit includes both upper and lower seal halves.

In Stock

144-1001

Silicone Rear Seal End Strips Kit
We also offer upgraded silicone rubber rear seal end strips. These are the small strips which fit down the sides of the rear seal cap and seal it to the block. These are a huge improvement over the standard style paper or cardboard strips. Silicone is considered a much better material to use for these rear seal end strip applications. One more way to combat those pesky rear seal leaks. These fit all big blocks, all years. Our 144-1001 kit includes a package of (2) end strips. Color may be orange or blue, depending on stock.

In Stock

112-1003

Oil Pan Gasket
We carry a nice cork type oil pan gasket for those that prefer this style of gasket contruction. These fit all big blocks, all years. These are the same oil pan gaskets that are supplied in our complete kit , however when running a windage tray, two are required (one on the top, and one on the bottom of the tray.) We offer them separately so you can get the extra one needed if you are running a windage tray.

In Stock

112-1014

Valve Cover Gaskets (pair) Rubber with Steel Core
Our premium valve cover gaskets are designed to withstand the extreme pressure and vaccuum conditions found in the crankcases of high performance engines. They feature a steel core covered in molded nitrile rubber. This helps these re-usable gaskets to keep their shape and works to prevent leaks time after time of use. Includes package of (2) gaskets.

In Stock

112-1011

Valve Cover Gaskets - Pair
We now offer replacement valve cover gaskets. These are made from standard cork material and sold in pairs (2). They are the same gaskets which are included in our complete gasket kit. We now offer them separately for convenience when changing valve covers, etc.

In Stock

112-1015

Stealth Cylinder Head Gasket (Qty 1) - Black
Our new "Stealth" cylinder head gaskets are a perfect match for our Stealth cylinder heads. They come teflon coated, which allows for a perfect seal on engines which have dissimilar metals, such as an iron engine block with aluminum heads. Because aluminum expands at a rate much greater than iron, these two surfaces move against each other as the engine heats up and cools down. The teflon allows for this movement, making sure there will not be any coolant or combustion leaks, even during extended street driving. We've fully tested these at up to 12:1 compression. These fit all big blocks, all years. They are sold individually (one single gasket,) so be sure to order two if you need a set. Compressed thickness on these head gaskets is .051" The Teflon coating is designed to be installed dry, so no chemicals or sealers are necessary for installation. Just clean your deck surfaces (we recommend using laquer thinner for this), bolt 'em on and go. Although these are designed for our aluminum Stealth heads, they also work great with other brands of aluminum heads such as Edelbrock, Trick Flow, ProMaxx, etc and you can even use them on factory iron heads also.

In Stock

112-1001

Intake Valley Pan Gasket - RB - New
We offer brand new steel bathtub intake gaskets. These fit "RB" (413/426W/440) engines. We recommend using these with our 112-1005 intake "facing" gaskets.

In Stock

112-1005

Intake Facing gaskets - Set of 4
Shown here is our intake manifold "facing" gaskets. Made from .015" thick gasket facing material, these feature the standard 2.27" tall by 1.23" wide port openings and are sold in a set of 4. They are designed to work with the factory replacement type "bathtub" steel valley pans listed on our gaskets page. We recommend using one gasket on either side of the port area of the valley pan to aid in sealing, and to allow for the expansion and contraction of aluminum intake manifolds. These interchange with Fel-Pro # 1216. These can also be used as standard intake gaskets with aftermarket style valley pans if the .015" material is preferred.

In Stock

144-1003

Intake Manifold Gaskets - .062 Thick - Set of 2
Shown here is our .062" intake manifold gaskets. Made from high quality .062" thick, composition fiber gasket material, these are sold in a set of 2. They feature the standard 2.27" tall by 1.23" wide port openings, and are designed to work with our aftermarket sheet metal type valley pans where the valley pan stops at the deck surface of the cylinder head, and the intake manifold bolts directly to the face of the cylinder head, with only one gasket per side being used. These interchange with Mr. Gasket # 301.

In Stock

121-1039

Carb Base Gasket
We now carry carburetor base gaskets. These are for Holley 4150 carbs. Don't get stuck putting that new stroker motor together and realize you remembered to order everything except the carb gasket. Make sure these details are taken care of, and it'll be one less thing to hold up your build. We also carry other carburetor essentials such as fuel lines, return spring kits, carb stud kits, etc.

In Stock

200-1009

Freeze Plug Kit - Brass
Brass Freeze Plug kit. Includes block plugs, oil galley pipe plugs and cam plug. A nice upgrade from the standard steel kits, brass has much better resistance to corrosion.

In Stock

138-1012

Permatex Silicone Ultra Grey 3.5 oz.
Based on our decades of experience building engines, we highly recommend coating the surface of most gaskets with Permatex Ultra Grey RTV Silicone. We've tried practically every name brand and formulation of sealers out there on the market and nothing beats Ultra Grey. Use on oil pan/windage tray gaskets, timing cover, valve covers, water neck, water pump and housing, etc. Don't forget to throw one of these in when ordering gaskets.

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

112-1007

Timing Cover Seal
We now offer replacement timing cover seals. These are the same seals included in our complete gasket kit. We now offer them separately for convenience when doing timing cover swaps, etc.

In Stock

112-1009

Water Neck Gasket
We now offer replacement water neck gaskets. These are made from compressed fiber. They are the same gaskets which are included in our complete gasket kit. We now offer them separately for convenience when doing thermostat or water pump swaps, etc.

In Stock

112-1010

Timing Cover Gasket
We now offer replacement timing cover gaskets. These are made from compressed fiber. They are the same gaskets which are included in our complete gasket kit. We now offer them separately for convenience when doing timing cover swaps, etc.

In Stock

112-1008

Water Pump to Housing Gasket
We also carry water pump to housing gaskets. These are the nice thick ones which work great with our water pumps & housing combos. Use one per engine.

Special Pricing Available In Stock

112-1006

Water Pump Housing to Block Gaskets - Set of 2
We also carry water pump housing to engine block gaskets. Sold as a pair. These are the same gaskets that come in our complete gasket sets. We now offer them separately for convenience when doing water pump or cam swaps, etc.

In Stock

112-1012

Fuel Pump Gasket
We now offer replacement fuel pump gaskets. These work with either a fuel pump or a fuel pump block off plate. This is the same gasket which is included in our complete gasket kit. We now offer them separately for convenience. Includes one (1) gasket per package. Actual appearance and/or material may vary slightly from picture.

In Stock

112-1013

NOS FACTORY MOPAR Rear Seal 4227926
We bought the last of these NOS FACTORY OEM Chrysler rear seals. Since Chrysler no longer makes this stuff anymore, once they are gone, they are gone forever. These have factory Chrysler part number 4227926 molded into them, so you know they are genuine. Not like the aftermarket made overseas junk available everywhere else. They are just the ticket to repair those pesky rear seal leaks on all big block Mopar (361 383 400 413 426 and 440) engines. Sold as a pair (two halves which will equal one complete seal.)

In Stock

127-1009

Sheet Metal Valley Pan - RB Engine - Single Plane
Our fabricated sheet metal valley pans work great with our aluminum Stealth heads, Edelbrock RPM heads, Trick Flow 240's AND 270's, or any other aftermarket heads which feature an unbroken deck surface where the lower edge of the head's deck surface meets the edge of the valley pan. They will also work with factory cylinder heads, however there may be a small gap where the lower deck surface has a break which may need to be filled with silicone, depending on the intake manifold you are using. The pan is shown upside down in the picture. When it is installed, the "lips" along the long sides will fit underneath the edge of the cylinder heads, making a tight seal and allowing the use of standard intake port gaskets. This pan is designed to work with SINGLE PLAIN INTAKES only. Dual plane intakes (including stock units) will not fit due to the exhaust crossover which hangs down underneath them. We do have some other models which may work if you are using a dual plane intake Because this pan is a single solid piece which fits "under" the cylinder head intake face edges, it requires at least one cylinder head to be off during installation or removal. Supplied in a gold irridite finish for good looks and corrosion resistance. We carry these in two different versions, one for the "RB" (413/426/440) engines and one for the "B" (361/383/400) engines. Be sure to select the correct one for the type of engine you are working on.

In Stock

127-1010

Sheet Metal Valley Pan - RB Engine - Dual Plane
This valley pan is the same as our single plain models, except it features a clearance well which will clear the exhaust crossover found in the Edelbrock Performer RPM intake manifold. It DOES NOT work with stock cast iron intakes, the Edelbrock standard Performer, or any others. These also work well with our aluminum Stealth heads, Edelbrock RPM heads, or any other aftermarket heads which feature an unbroken deck surface where the lower edge of the head's deck surface meets the edge of the valley pan. It will also work with factory cylinder heads, however there may be a small gap where the lower deck surface has a break which may need to be filled with silicone, depending on the intake manifold you are using. Because this pan is a single solid piece which fits "under" the cylinder head intake face edges, it requires at least one cylinder head to be off during installation or removal. Supplied in a gold irridite finish for good looks and corrosion resistance. This version fits the "RB" (413/426/440) engines.

In Stock

127-1011

Sheet Metal Valley Pan - B Engine - Single Plane
Our fabricated sheet metal valley pans work great with our aluminum Stealth heads, Edelbrock RPM heads, Trick Flow 240's AND 270's, or any other aftermarket heads which feature an unbroken deck surface where the lower edge of the head's deck surface meets the edge of the valley pan. They will also work with factory cylinder heads, however there may be a small gap where the lower deck surface has a break which may need to be filled with silicone, depending on the intake manifold you are using. The pan is shown upside down in the picture. When it is installed, the "lips" along the long sides will fit underneath the edge of the cylinder heads, making a tight seal and allowing the use of standard intake port gaskets. This pan is designed to work with SINGLE PLAIN INTAKES only. Dual plane intakes (including stock units) will not fit due to the exhaust crossover which hangs down underneath them. We do have some other models which may work if you are using a dual plane intake Because this pan is a single solid piece which fits "under" the cylinder head intake face edges, it requires at least one cylinder head to be off during installation or removal. Supplied in a gold irridite finish for good looks and corrosion resistance. We carry these in two different versions, one for the "RB" (413/426/440) engines and one for the "B" (361/383/400) engines. Be sure to select the correct one for the type of engine you are working on. This version is for the "B" (361/383/400) engines.

In Stock

127-1012

Sheet Metal Valley Pan - B Engine - Dual Plane
This valley pan is the same as our single plain models, except it features a clearance well which will clear the exhaust crossover found in the Edelbrock Performer RPM intake manifold. It DOES NOT work with stock cast iron intakes, the Edelbrock standard Performer, or any others. These also work well with our aluminum Stealth heads, Edelbrock RPM heads, or any other aftermarket heads which feature an unbroken deck surface where the lower edge of the head's deck surface meets the edge of the valley pan. It will also work with factory cylinder heads, however there may be a small gap where the lower deck surface has a break which may need to be filled with silicone, depending on the intake manifold you are using. Because this pan is a single solid piece which fits "under" the cylinder head intake face edges, it requires at least one cylinder head to be off during installation or removal. Supplied in a gold irridite finish for good looks and corrosion resistance. This version fits the "B" (361/383/400) engines.

In Stock

Complete Engine Gasket Kit

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Viton Rear Seal

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Silicone Rear Seal End Strips Kit

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Oil Pan Gasket

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Valve Cover Gaskets (pair) Rubber with Steel Core

In Stock

Valve Cover Gaskets - Pair

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Stealth Cylinder Head Gasket (Qty 1) - Black

In Stock

Intake Valley Pan Gasket - RB - New

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Intake Facing gaskets - Set of 4

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Intake Manifold Gaskets - .062 Thick - Set of 2

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Carb Base Gasket

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Freeze Plug Kit - Brass

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Permatex Silicone Ultra Grey 3.5 oz.

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Oil Pump Gasket

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Timing Cover Seal

In Stock

Water Neck Gasket

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Timing Cover Gasket

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Water Pump to Housing Gasket

Special Pricing Available In Stock

Water Pump Housing to Block Gaskets - Set of 2

In Stock

Fuel Pump Gasket

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NOS FACTORY MOPAR Rear Seal 4227926

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Sheet Metal Valley Pan - RB Engine - Single Plane

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Sheet Metal Valley Pan - RB Engine - Dual Plane

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Sheet Metal Valley Pan - B Engine - Single Plane

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Sheet Metal Valley Pan - B Engine - Dual Plane

In Stock