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One pair (2 cylinders/ 2 pistons) of Gilardoni 850T, 850T3, 850GT, Eldorado cylinder and piston sets in original 83mm bore size. Latest casting design with oval push rod galleys allows fitment with both early and late rocker arm and cylinder head configurations. 

Requires use of MG260 head gasket with oval push rod holes, sold separately. Or also sold separately top end gasket kit 1302KITB for a complete installation.

Each Gilardoni "set" includes 1 new Gilnisil (Nikasil, Nigusil) plated cylinder, 1 new piston, 1 set of rings, 1 wrist pin, and 2 wrist pin circlips.  This part numbers MG305 consists of  2 "sets" and will complete one engine.

Installation tip:  For 850 Eldorado, it is important to verify that the push rods do not contact the cylinder or the cylinder head or the head gasket prior to final installation.  Loosely assemble all components and rotate the engine through 4 strokes several times while inspecting each push rod through all 4 strokes using a flashlight to visually inspect.  Depending on the combination of cylinder heads and rocker arms, some combinations are more likely to require additional clearance than others.  Increased clearance is quickly and easily obtained by use of a rat tail file.

One pair (2 cylinders/ 2 pistons) of Gilardoni 850T, 850T3, 850GT, Eldorado cylinder and piston sets in original 83mm bore size. Latest casting design with oval push rod galleys allows fitment with both early and late rocker arm and cylinder head configurations.  Requires use of MG260 head gasket with oval push rod holes, sold separately. Or also sold separately top end gasket kit 1302KITB for a complete installation. Each Gilardoni "set" includes 1 new Gilnisil (Nikasil, Nigusil) plated cylinder, 1 new piston, 1 set of rings, 1 wrist pin, and 2 wrist pin circlips.  This part numbers MG305 consists of  2 "sets" and will complete one engine.Installation tip:  For 850 Eldorado, it is important to verify that the push rods do not contact the cylinder or the cylinder head or the head gasket prior to final installation.  Loosely assemble all components and rotate the engine through 4 strokes several times while inspecting each push rod through all 4 strokes using a flashlight to visually inspect.  Depending on the combination of cylinder heads and rocker arms, some combinations are more likely to require additional clearance than others.  Increased clearance is quickly and easily obtained by use of a rat tail file.

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