Availability

- In Stock Items. Ships Today. (4) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- In Stock Items, Including at a Supplier. Ships In a Few Days. (5) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- All Items, Including Not In Stock (5) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Filters
Brand
- Allstar Performance (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Canton Racing Products (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Engine Works (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Moroso (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Stef's Fabrication (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Make/Engine
Mounting Hardware Included
- Yes (4)
- No (1)
Quantity
- Sold as a kit. (3)
- Sold individually. (2)
Filter Options
- Circle Track (4)
- Made In USA (1)

Rear Main Seal Adapters

Showing In Stock Items. Show All 5 Items.

Individual Parts

Part Groups

Results 1 - 5 of 5

Allstar Performance Small Block Rear Main Seal Adapters

Allstar Performance small block rear main seal adapters can be used to convert 1986 and later blocks with a one-piece rear main seal to accept an older-style, 2-piece seal crankshaft. These are essential when installing an early-style (1985 and earlier) crankshaft into 1986 and later blocks. These rear main seal adapters are available in different applications and can be used with a one-piece or 2-piece oil pan, depending on your application. They are made from billet aluminum and include hardware.

4.5 out of 5 stars ( 8 )

$126.99

—

$188.99

Stef's Rear Main Seal Adapter Kits

Stef's rear main seal adapter kits are designed to install an early 2-piece style crankshaft into a late model, one-piece engine block. They are manufactured from billet aluminum and require no drilling or welding for installation.

4.0 out of 5 stars ( 2 )

$128.99

Moroso Rear Main Seal Adapter Kits

Moroso rear main seal adapter kits are designed to install an early 2-piece style crankshaft into a late model, 1-piece engine block. They are manufactured from billet aluminum and require no drilling or welding for installation. The adapter kits include all mounting fasteners and required hardware.

4.63 out of 5 stars ( 8 )

$249.99

Canton Racing SBC Rear Main Seal Adapters

Canton Racing SBC rear main seal adapters convert your 1986 and later blocks with one-piece rear main seals to accept an older style 2-piece seal crankshaft. These adapters are essential when installing an early-style (1985 and earlier) crankshaft into 1986 and later blocks. When using these adapters, an oil pan for a 1985 and earlier block with a right side dipstick must be used. They are made from billet aluminum and hardware is included.

Not Yet Reviewed

$225.00

Engine Works Small Block Rear Main Seal Adapters

Engine Works small block rear main seal adapters convert 1986 and newer blocks with one-piece rear main seals to accept an older style 2-piece seal crankshaft. The adapter is needed when installing an early-style (pre-1986) crankshaft into1986 and newer block. They are made from billet aluminum and include hardware. Select the adapter needed for your application.

Not Yet Reviewed

$116.21

—

$166.21

Page 1 of 1