Re: Merc 140 Roller Rockers?
Or stop at your Chevy dealer parts department and ask to see the "Performance Parts Catalog" or go to GM Performance Parts on the web. You don't have a Merc-built engine. It is supplied by GM. While the engine itself never appeared in a car it's roots go back to a version that did. However, why bother. That engine is spinning at 5000 rpm or less. Addiing roller rockers at those RPM are really not necessary.
