just be aware that you may need thread inserts for at least some of the cam tower bolts. Also, early and late cams had different diameter sprocket bolts. Match what you have or get both new cam and sprocket together. Performance is the same.

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Hanno
'79 6.9 Sold (after 27 years)
'83 280SL, 5 spd.
'94 E320 Sdn. 5 spd conversion
'02 E320 Sdn.(on loan to mom!)
'87 300E (5 spd. conversion) Sold
'05 E500 Wagon