Hey thanks "OLDCOLT" for your input . I'll measure the head off the '89 & make sure it's within tolerance, valve margin , change valve seals ,hope all will be ok.With the block, I,m wondering what would be the best to clean it with ,all oil passages & so on <img src="/forums/images/graemlins/rolleyes.gif" alt="" />Gasoline & some good small oil passage brushes, compressed air & lots of elbow grease.I heard (Simply Green) works to <img src="/forums/images/graemlins/rolleyes.gif" alt="" />?WD 40? I was going to use a rering kit with premium rings from 'POWER SEAL'. The crank has a groove where the rear seal is , any whey of maybe emery cloth & J.B. weld & a final light sanding? <img src="/forums/images/graemlins/rolleyes.gif" alt="" /> More input would be great from you guys . <img src="/forums/images/graemlins/cheers.gif" alt="" />