Originally posted by gearhead98:
how does that cam add hp, the duration on the intake, which doesn't list the primary and secondary valves duration. Plus the duration listed is the same as the seecondary duration on the SVT, and the exhaust duration is lower, the SVT exhaust duration is 262. so how does this increase hp,


These are stock cams reground with a slightly longer duration.

No they are not even to the level of SVT cams. Yes the intake has the same "duration" but the valve timing points are very substandard. Why I do not know, maybe they were limited to the amount of material they had to work with.


The max lift of the regrind is reduced by 8-9% as well! So I just do not see these beating the stock cams by much even with the changed valve timing and "slightly" longer duration.

Yes the price may be lower but IMO you would not even get what you pay for in this deal. If you are interested in custom cams and the SVT set is too tame for you then look at the CAT Cams. (I.E Stage 3 intake & Stage 2 exhaust)

However once you price out the cost to build up of a reliable NA engine you may just save a chunk of that money and go with a turbo setup.

2000 SVT #674 13.47 @ 102 - All Motor! It was not broke; Yet I fixed it anyway.