MerCruiser V8 Log Spacer Blocks 3 Inch MC-20-61811A4 

Manifold to riser 3" spacers (sold in pairs).

Fits these applications:

• MerCruiser V8 225, 250, 255, 270 and 280, inboard and stern drive units (log style direct replacement).
• MerCruiser V8 325, 330, 350, 370 and 400, inboard and stern drive units (log style direct replacement).

Barr Marine castings have a thicker interior wall, are painted to match original manufacturer colors and are packed in foam for added protection during shipping and storage.

• Includes all mounting hardware, gaskets and drain plugs.
• Each spacer block kit includes the spacer block(s) and the corresponding package to mount.

Compatible parts:

• MC-1-47735 direct replacement water cooled exhaust manifold (port side).
• MC-1-47736 direct replacement water cooled exhaust manifold (starboard side).
• MC-1-47737 direct replacement water cooled exhaust manifold (port side).
• MC-1-47738 direct replacement water cooled exhaust manifold (starboard side).
• MC-20-72963 direct replacement exhaust elbow riser.
• MC-20-76668 direct replacement exhaust elbow riser.
• 1-60252 direct replacement exhaust manifold end cap/connector.
• 1-60252P front end plate mounting package.
• MC-1-77234P manifold mounting package.
• MC-20-72963P exhaust riser elbow mounting package.
• MC-20-76668P exhaust riser elbow mounting package.
• MC-27-47487 alternator bracket.
• MC-29-47441 upper thermostat housing.
• MC-29-78984 lower thermostat housing.
• MC-29-78985 lower thermostat housing.
• MC47-27-33395 direct replacement exhaust manifold to head gasket.
• MC47-27-33395A2 exhaust manifold gasket set.
• MC47-27-46820 direct replacement exhaust manifold to head gasket.
• MC47-27-48042 direct replacement exhaust elbow to manifold gasket.
• MC47-27-48043 direct replacement exhaust manifold end cap/connector gasket (will fit both ends).
• MC47-488 KIT thermostat kit (includes gasket and thermostat).

Manufactured by Barr Marine. Part number MC-20-61811A4.