Smalk -- I don't know the engine on your car, but mine requires that the head be removed to replace the guides. That adds about 10 hours to the job. Sure WISH I could have guides replaced for $450!
1994 C280, dark green metallic
1991 190E 2.6, Black
(sold to another forum member)
2003 Chevy Tahoe LT, Redfire Metallic
1989 Mustang GT Cobra Convertible