This SBC rear main seal adapter converts 86 and newer blocks with one piece rear main seals to accept an older style two piece seal crank shaft. The adapter is essential when installing an early style (pre-86) crankshaft into 86 & newer blocks. When using this adapter an oil pan for a pre-86 block with a right side dipstick must be used. Made from Billet aluminum, hardware included.
*When using this adapter an oil pan for a pre-86 block with a right side dipstick must be used
*Made from Billet aluminum, hardware included
*Made in USA
21-850 Installation Guide (PDF)
Be the first to review this product.
- Canton Racing Products, Inc. warrants that when our products are properly installed in their correct application they will be free from defect. Any product returned for warranty must be returned to Canton Racing Products, Inc. within 1 year of purchase. All returns must include the original sales slip or proof of purchase, detailed information regarding the problem, your name, address and phone number.
- 2-7 Business Day Via UPS Ground (Orders placed after 2:30pm EST will be processed the next business day)