188547 Sierra Marine Exhaust Manifold Riser Mounting Kit

Sierra Marine products are engineered to surpass today’s high horsepower engine demands and stand up to the harsh marine environment.
Sierra Marine are the leading supplier of marine engine and drive parts with over 50 year in business, offering 1,000’s of parts.

• For Use With Exhaust Manifold Risers
• Fits GM Small Block V-8 305 To 350 Cubic Inch/ GM Big Block V-8 454 Cubic Inch Engines

• Sierra Marine products are engineered to surpass today’s high horsepower engine demands and stand up to the harsh marine environment.
  Sierra Marine are the leading supplier of marine engine and drive parts with over 50 year in business, offering 1,