thank you "superdave 7087" for your reply to my post "430 wanted". your '67 430 would have been great, but i managed to locate 2 engines, here in Western Australia, one a rebuilt code RD 430, same as mine and a code SF 455, which is in good order. just have to work out which one i'm going to fit to my '69 riviera,whichever,i wont be running all original matching numbers anymore, which is a shame, but at least it will be back on the road again FROG 69