Big Bore & Top End Kits

Dedicated forgings are used for superior strength to weight ratio utilizing aerospace alloy with a dome designed for improved flame travel and detailed skirt shape and profiles for stability and smooth operation in the cylinder bore. Each Wiseco piston...

Dedicated forgings are used for superior strength to weight ratio utilizing aerospace alloy with a dome designed for improved flame travel and detailed skirt shape and profiles for stability and smooth operation in the cylinder bore. Each Wiseco piston...

Dedicated forgings are used for superior strength to weight ratio utilizing aerospace alloy with a dome designed for improved flame travel and detailed skirt shape and profiles for stability and smooth operation in the cylinder bore. Each Wiseco piston...

Namura Top End Kits come with the piston(s) individually wrapped, a set of OEM quality rings packed in their own box, wrist pin(s), circlips and a top-end gasket set. Namura pistons are made to exact OEM specifications and are direct replacements for OEM...

Namura Top End Kits come with the piston(s) individually wrapped, a set of OEM quality rings packed in their own box, wrist pin(s), circlips and a top-end gasket set. Namura pistons are made to exact OEM specifications and are direct replacements for OEM...

Namura Top End Kits come with the piston(s) individually wrapped, a set of OEM quality rings packed in their own box, wrist pin(s), circlips and a top-end gasket set. Namura pistons are made to exact OEM specifications and are direct replacements for OEM...

Namura Top End Kits come with the piston(s) individually wrapped, a set of OEM quality rings packed in their own box, wrist pin(s), circlips and a top-end gasket set. Namura pistons are made to exact OEM specifications and are direct replacements for OEM...

Namura Top End Kits come with the piston(s) individually wrapped, a set of OEM quality rings packed in their own box, wrist pin(s), circlips and a top-end gasket set. Namura pistons are made to exact OEM specifications and are direct replacements for OEM...

Dedicated forging Superior strength/weight ratio utilizing Aerospace alloy Race proven designs Chosen by top race teams, in all forms of racing CNC machined Optimal cam shape profile for peak HP and service life Precision machined, highest quality...

Namura gaskets are made with imported Australian Klingersil and other high tech materials. They provide greater reliability and high performance for today's hard working motors. These materials are excellent for use on high-pressure applications and have...

Dedicated forgings are used for superior strength to weight ratio utilizing aerospace alloy with a dome designed for improved flame travel and detailed skirt shape and profiles for stability and smooth operation in the cylinder bore. Each Wiseco piston...

Wiseco Part#: R1041 Product Type: Piston Kits Specifications: Bore - Standard: 75.50mm Bore - Oversize: 1.50mm Displacement: 1040cc Bore - Actual: 77.00mm Note: Cylinder boring required Stroke: 55.85mm Compression Ratio - Actual: 12:1 Item Contents:...