Triumph Pre-Unit ALUMINUM BILLET Valve Cover Cap Set 70-1564 BSA Engine but was specific to '68

but was specific to '68 and later models with the taller and more complex 6CA breaker plate

(Note: The splitter has been hand ground on one corner for certain Husqvarna applications

hyping NHRA drag race wins

These are direct replacements for BMW R51 / R67 Pre 54

Should fit the 88SA Lucas switch fitted to most British bikes until 1965 or so

Triumph Pre-Unit ALUMINUM BILLET Valve Cover Cap Set 70-1564 BSA Engine but was specific to '68Triumph's part number for these valve cover nuts is 70 1564 or E1564. They should fit all pre unit models of 500 or 650 twin, to my knowledge. CEI thread, perfectly polished, ALUMINUM BILLET showtime. This listing is for a complete set of four nuts covers.