decking = milling

cutting the bottom of the head to make sure its flat, the more you cut the more you affect timing and compression

 

I bought the 280/276 Kelford cams for my Evo 9 MR. Has anyone tried this set up yet?

 

dont they make a thicker head gasket to accomodate the extra machine work??

 

Although I have an Evo V I have an VIII 2.4ltr stroker motor and kelford said that its a great match... prob over kill on a 2ltr RR tho.

 

just wondering whats the diffrence between the kelford 280s compared to say cosworth m3 cams i no they are 280/272 but y do the kelfords require machine work and the cossies dont and are more aggressive from what i have heard they have close to the same amount of lift i thought and ive seen people run them on stock motors and seen vendors say no clearence problems.