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!

brookspw

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1994 C280, dark green metallic
105k miles

1991 190E 2.6, Black
191,500 miles
(sold to another forum member)

2003 Chevy Tahoe LT, Redfire Metallic
105k miles

1989 Mustang GT Cobra Convertible
43k miles