little update on my engine internals - stripped block back and had the bores measured and theyre .8 tho worn - so will need reboring - but didnt really wanna start buying oversize pistons etc but further more i have removed main bearings and they are 0.4 oversize vandervell - stamped ford - from factory ! so this original block has had the crank ground and oversize bearings fitted at factory , apparently Ford never threw blocks away if they could help it, and re machined wherever they could. so in a quandry as want to keep the orig engine as standard as I could but dont wanna spend on a rebore and pistons etc if I cant source the mains for it...... hmmmm - any ideas ?