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    • RMB Motor Works offering 4.2 liter Ford Ecoboost Gen 1 and Gen 2 V6 built stroker motors

      RMB Motor Works focuses on the Ecoboost platforms and there is something to be said for having expertise in a certain area and not spreading yourself too thin. When it comes to Ecoboost builds, they seem to have everything available from mild to wild.


      A 4.2 liter stroker build certainly is on the wild side. Pictured is a Gen 1 Ecoboost 3.5 V6 being taken to 4.2 liters.

      What is the bore and stroke? They did not specify. The factory setup is 92.5mm bore x 88.7mm stroker making for an oversquare motor.

      Even if you take the stroke up to 92mm that results in 3709cc so they likely are increasing the bore a bit too here. Hopefully they share the recipe and cost soon.

      Either way, some monster 4.2 liter Ecoboost V6 builds are on the way.
















      This article was originally published in forum thread: RMB Motor Works offering 4.2 liter Ford Ecoboost Gen 1 and Gen 2 V6 built stroker motors started by Sticky View original post