181917 Sierra Marine Exhaust Manifold Block Off Plate

Sierra Marine products are engineered to surpass today’s high horsepower engine demands and stand up to the harsh marine environment.
All marine products both meet or exceed the original equipment part it replaces.
Sierra Marine are the leading supplier of marine engine and drive parts with over 50 year in business, offering 1,000’s of parts.

• Used When Blocking Off Fresh Water Side From Raw Water Side Of Exhaust system
• Fits Crusader Small Block V8 305 To 350 Cubic Inch/ GM Big Block V8 454 Cubic Inch
• Stainless Steel

• Sierra Marine products are engineered to surpass today’s high horsepower engine demands and stand up to the harsh marine environment.
  All marine products both meet or exceed the original equipment part it replaces.
  Sierra Marine are the leading