Triumph 6T pistons +20 650cc Pre Unit f. Cast Iron Head 7:1 71mm +20=71.5mm for Cast Iron Head - please do not fit to alloy head complete with gudgeon pin, piston rings and circlips
Piston Clearance 0.12mm or 45thoumeasurements see techn. dataPrice per pair
Triumph Kolben TR6,T120,T110 650cc pre unit 71mm +40 = 72mm Alloy Head 7:1 complete with Piston Rings, Circlips and Gudgeon Pin Piston Clearance 0.12mm or 45thou
if you wish to lower the compression of an iron head engine, these pistons can be used. Giving approx. 6.76:1Price per Pair
Triumph. T100R, T100T unit 9:1, 69mm +040 = +1mm, 70 mm Tiger 100 Unit Daytona 500cc Piston Clearance 0.12mm or 45thoucomplete with Piston Rings, Circlips and Gudgeon Pin
Full Engine Gasket 650cc 1963-73 Universal 650 9-stud gasket set This gasket set gives you the opportunity to try different pushrod oil seals and rockerbox gaskets. This set is for all 650 Triumphs from 1963-1973 fitted with a 9-stud head T120,T120R,T120V,TR6,Bonneville, Trophy. 9-stud Thunderbirds The head gasekt does not fit 9-stud Big Bore kits.