Originally Posted By LA360
That is a ported 59* head, the 48* stuff is slightly different I thought?


Yes, those were some 446 p/n heads I bought on a MP clearance sale. They are 18° heads, setup for the 59° lifter angles. I had Jeff do them on one of his Christmas specials. The original poster wanted info on the 15° heads, so this is For Reference Only.

Floyd Lippencott IV