quote:Originally posted by SF:
Looking for new headers to my 408. I have search to find photos of the Pat Mical´s headers without result. Any one that can share a photo?
Tri y or 4-1 header design what is your opinion?
Anders
Have you considered 180's? Ford incorporated the 180 set up on there GT-40 to achieve better scavenging of the exhaust gases. race engines have long incorporated a flat crank design to enhance the breathing of high performance engines, that's what gives a Ferrari it's incredible high pitched sound, by creating a 90 degree rotating crank the pulse is more efficient than a 180degree pulse ( American V-8's ) i.e. crossing the 2 & 3 to the 5&8 header and likewise the 6 & 7 to the 1 & 4 header pushes the exhaust at consistent and higher volume ( better breathing)The 351-C platform was designed around huge canted vales, 180's take advantage of that. I have 180's created by Dan Lemon of Lemon headers in Atascadero, Ca,the increase over standard headers was dramatic seat of the pants impressive, i love them!!!.