Making Big Power with an sr20det vvl head
If you've been hanging around the Nissan S-chassis community for more than five minutes, you've definitely heard someone mention the sr20det vvl head swap. It's basically the "end-game" modification for anyone serious about making big power without blowing their valvetrain into a million pieces. For a long time, the standard SR20DET was the king of the four-cylinder world, but as people started pushing for 500, 600, or even 800 horsepower, the limitations of the factory head became painfully obvious. ...