Copyright WWW.DBBP.COM | updated 28-October-2008


To reduce stress in the heads, the intake pipes were re-machined to get a thinner wall at the weld area. This was done on a CNC lathe, the next step however was done with an old-fashioned hacksaw. First we made a rough cutout, then step by step we marked the intake pipe, cut off some more, test fit again, mark off again etcetera untill the pipe had a nice fit on the head. With a small grinder Aad removed the cooling ribs in the area where the weld will be, and then smoothed the intake channel in the head and rounded off the cooling ribs. Next step: welding!


To be continued next week..