I was wondering what the reasoning is behind putting a M42 head on a M44 engine? Does it increase HP, and how hard is it to swap over. I am trying to get some HP out of my engine and still remain N/A rather than going supercharged or turbo
The head is good for switching over to a solid lifter conversion.
__________________ RAiMA Old RT E36 S/C'd 318ti Sports 13.318 @ 105.99mph New RT E36 Turbo 328ti Sports 12.25 @ 123mph BMW E39 528i Touring Performance at its best
Solid lifters allows the engine to rev up to 7600rpms for more power without floating the hydraulic tappets.
The process is quite complicated and parts are difficult to source. We're one of the few that's done it. I won't go into details on the forum. A conversion can be done for about $3200 USD by us. We would also suggest retunning to maximise the power with the new limits.
It would also be a good idea to get lightweight pistons or stronger conrods to keep things safe.
__________________ RAiMA Old RT E36 S/C'd 318ti Sports 13.318 @ 105.99mph New RT E36 Turbo 328ti Sports 12.25 @ 123mph BMW E39 528i Touring Performance at its best
Solid lifters allows the engine to rev up to 7600rpms for more power without floating the hydraulic tappets.
The process is quite complicated and parts are difficult to source. We're one of the few that's done it. I won't go into details on the forum. A conversion can be done for about $3200 USD by us. We would also suggest retunning to maximise the power with the new limits.
It would also be a good idea to get lightweight pistons or stronger conrods to keep things safe.
M42 head on the M44 engine 
Linear Mode
