r4 big end bolts
as you correctly surmised they are for an austin seven, i am very much the illegal alien on this site!! but they are for a good cause! i am trying to build up a bullet proof engine using r4 rods and pistons which i already have, cos the bits are somewhat newer and stronger than the equivalent a7 bits. the rods are off an 845 cc engine so will try and find some bolts to fit, the bolts off the 945 and 1108 should fit assuming they did not alter the crank journal diameter?