Mini Spares is renowned for producing parts for classic Minis that are no longer available from original manufacturers. However, their latest introduction is not just a reproduction, it’s a complete redevelopment of the original Cooper S block, which was made by Morris Motors Coventry.
Over seven years of research and development, hindered by Covid, has gone into this block. All of the blocks are blueprinted with areas being strengthened and approximately 20 per cent better cooling is provided by improved water jackets.

The standard bore will require honing to suit the pistons being used and can only be increased to plus 60 oversize, (but many race series categories only allow plus 20 oversize).
Core plugs are supplied but not fitted. Oil release valve seating is fitted but the valve, cap and spring are not included. Camshaft bearings will be required and fitted, but holes are line- bored.
Special competition steel main caps, bolts and nuts are used for race or road use but visually the block perfectly matches the original, even down to the correct casting numbers.
Order as part number 38G466 at £3995 inc. VAT
More details at the other end of 01707 607 700 alternatively visit www.minispares.com ENDS.
