A big block Mopar oil pan rail is long, and a multi-piece gasket gives it four extra places to weep. A one piece cork and rubber blend seals the whole run in a single part, and the high density material takes the clamp load without squeezing out from under the rail.

Mr. Gasket 397 Performance Oil Pan Gasket Features:

• Fits 1959-1980 Chrysler 361-440 Big Block B/RB and Gen II Hemi engines.
• One piece oil pan gasket design.
• Suits engines with a two piece rear main seal.
• 0.062 in. thick.
• Manufactured from a high-density cork and rubber blend gasket material.
• For original equipment replacement and high performance street use.