Gaskets & Seals

Shown above is our 112-1000 Gasket Kit. You can't beat this 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. (See picture below.) Beware of some kits that supply cheaper steel shim head gaskets.

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. (Sold separately below.) The oil pump to block gasket and O ring are not included, they come with new oil pumps, or we sell them separately below.

Compressed thickness on these head gaskets is .044" We figure the compression ratios of our pistons with an .039" gasket, so using these gaskets instead will lower your compression by about .01 (one tenth of a point) or so. 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. Appearance of some gaskets may differ slightly from the picture from time to time.

If you are running a windage tray, an extra oil pan gasket will also be required, see below for details.

Part No: 112-1000 - Gasket Kit - Price: $49.95

We also sell our head gaskets separately. These are the same head gaskets that are supplied in our complete kit above. We offer them separately for convenience or for service replacement. 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 .044" They are treated with a coating, so no chemicals or sealers are necessary for installation. Just clean your deck surfaces, bolt 'em on and go. Recommended up to 12:1 compression.

Part No: 112 -1004 - Cylinder Head Gasket - Contains 1 gasket - Price: $12.95

We also carry FEL-PRO Permatorque head gaskets. These are a premium gasket with Fel-Pro's patented blue stripe non-stick surface. We've been using these with great success for many years. These fit all big blocks, all years, with bore sizes from stock all the way up to 4.500". 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 .039" They are treated with a coating, so no chemicals or sealers are necessary for installation. Just clean your deck surfaces, bolt 'em on and go. Recommended up to 12:1 compression.

Part No: 138 -1014 - Fel-Pro Cylinder Head Gasket - Contains 1 gasket - Price: $19.95

Shown above is our brand new steel bathtub intake gaskets. These are available for an "RB" (413/426W/440) or "B" engines. "B" (361/383/400) engines use a slightly narrower version of this gasket because of the lower deck height (which puts the heads a bit closer together.)

We recommend using these with our 112-1005 intake "facing" gaskets.

Part No: 112 -1001 - Intake Valley Pan Gasket - "RB" - New - Price: $19.95

Part No: 112 -1002 - Intake Valley Pan Gasket - "B" - New - Price: $16.95

Shown here is our .062" intake manifold gaskets. Made from .062" thick, somewhat rigid compressed fiber gasket material, these are sold in a set of 2. They are designed to work with our aftermarket sheet metal type valley pans, such as part number 127-1009, 127-1010, 127-1011 and 127-1012, 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.

Part No: 144 -1003 - Intake Manifold Gaskets - .062" Thick - Set of 2 - Price: $14.95

Shown here is our intake manifold "facing" gaskets. Made from .021" thick gasket facing material, these are sold in a set of 4, and are designed to work with the factory replacement type valley pans listed on our gaskets section. 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. The heat crossovers are deleted but can be easily cut out if needed with a razor blade or x-acto knife.  These can also be used as standard intake gaskets with aftermarket style valley pans if the .021" material is preferred.

Part No: 112 -1005 - Intake "Facing" gaskets - Set of 4 - Price: $14.95

We also sell our oil pan gaskets separately. These are the same oil pan gaskets that are supplied in our complete kit above, 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. These fit all big blocks, all years.

Part No: 112 -1003 - Oil Pan Gasket - Price: $9.95

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. We also carry other carburetor essentials such as fuel lines, return spring kits, carb stud kits, etc. See our FUEL SYSTEMS page for details.

Part No: 121 -1039 - Carb Base Gasket - Price: $6.95

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.

Part No: 144 -1000 - Viton Rear Seal - Price: $24.95

We also offer upgraded VITON fluoroelastomer 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.  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 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.

Part No: 144 -1001 - Viton Rear Seal End Strips Kit - Price: $7.95

We also carry the factory O.E. style "black" rear seals. Sold as a pair (two halves which will equal one complete seal.) These are the same rear seals that come in our complete gasket sets. We now offer them separately for convenience.

Part No: 112 -1013 - "Black" Type Rear Seal - Price: $14.95

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.

Part No: 112 -1006 - Water Pump Housing to Block Gaskets - Set of 2 - Price: $7.95

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

Part No: 112 -1008 - Water Pump to Housing Gasket- Price: $6.95

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. In fact, we found the ONLY way to get the gasket itself was to order a new oil pump from Melling, since they included a gasket with the pump. The only problem is that they throw the gasket in the same box with the pump, and the during shipping the pumps' sharp machined edges usually tear the gasket to shreds. 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!  

Part No: 144 -1002 - Oil Pump Gasket - Price: $7.95

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.

Part No: 112 -1007 - Timing Cover Seal - Price: $7.95

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.

Part No: 112 -1010 - Timing Cover Gasket - Price: $7.95

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.

Part No: 112 -1009 - Water Neck Gasket - Price: $6.95

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.

Part No: 112 -1011 - Valve Cover Gaskets - Pair - Price: $12.95

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.

Part No: 112 -1012 - Fuel Pump Gasket - Price: $6.95

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