The numbers are located in the middle of the exhaust ports on the side of the head, one has 59325-3 and one has 59340-3 and both have a A280 on them also. I tried to call Trick Flow but they were closed. Anybody have any info?
The 59325-3 and 59340-3 are serial numbers and just a hunch but are they o-ringed and have one valve spring. I think the -3 might mean that they are twisted wedges with .54" lift springs. Part #TFS-51400003. I am almost certain its the serial # though. Mine are quit similar numericaly but with a -4 and I have dual springs and no o-ring. I could be way off on the -# though.
I havent gotten them off the block yet so I dunno on the o rings, hmmm, interesting. Thanks for the info! Im gonna call Trick Flow tomarrow and see whats up with em.
Pulled them off yesterday, they arent o ringed, hmmm, weird, Trickflow said they would be. I found another part number on the back that Im gonna look up.
The one in the middle of the exhuast port is what Trickflow says is the actual part number, or serial number, each has a different number because they come off the line at different times. Whats weird is they said they were o ringed? They did not appear to be o ringed.