8:1 Ratio BSA A10 / Ariel Huntmaster Pistons - With Flat Heads - Standard + Oversize
High compression pistons with flat heads, bevelled edge and valve pockets.
Suitable for A10 models circa 1950-62 + Ariel 650cc Huntmaster models circa 1954-59.
Supplied boxed with rings, gudgeon pins and circlips.
Compression ratio: 8:1
Standard bore: 2.7555" (69.989mm)
Height: 2.654" (67.4mm)
Compression height: 1.420" (36.1mm)
Gudgeon pin diameter: 3/4" (19mm)
Compression rings: 1/6" (1.6mm)
Oil scraper ring: 1/8" (3.2mm)
Available as: standard, +.020", +.040" or +.060" oversize - please select option.
OEM: 67-572, 67-0572 - Hepolite No. 11431
Genuine Hepolite - new production.
Prices to all countries outside of the United Kingdom exclude VAT.
UK orders will be charged at the current UK rate.
Inline with the UK / EU trade deal all orders to European Union countries will be despatched with the correct Proof of Origin statements to ensure fast and accurate customs clearance. In most cases customs duties will not be applied to goods. However, import taxes / VAT and a customs handling fee will still be levied.