A while back, I had competition cams grind me a roller cam for a 455. Inadvertently, TA shipped me a core for the 54MM Tomahawk block. Comp ground the cam, and reduced the size of the cam journals for me, to fit the standard 455 block. Unfortunately I forgot that this cam does not have the fuel pump eccentric on it, so I could not use it in the build it was planned for (carb application with mechanical fuel pump). Figured I would save it for a future EFI motor like Edouard's, but saw it sitting on the shelf today, figured I would throw it on here and see if anyone is interested in it. Specs: Duration (Advertised) 281 intake/ 290 EX Duration (at .050) 221/230 Lobe lift .322/.340 Valve lift (1.6 rockers) .515/.544 Lobe Center Separation 115* 4-7 swap Excellent cam for a very streetable build, slightly bigger than Edouards, and his mild 445ci STG 2 motor made over 500 HP. Must use electric fuel pump Brand New $500 plus the ride.. save yourself the wait and about $60. JW
Hmm, an mpg cam. Tempting, but I still run a mechanical pump (though that's a minor change to me) and figure I'd go to more lift when I eventually change cams.
Hi Randal, Ya, this one is right up your alley, but I thought you were going for a more radical cam. This cam is designed to work with the early 67-69 rockers, or the Alum 70-71 units, that is why I held the line on the lift. Like the one you have been using, this is a roller cam that does not require the additional $750 for roller rockers. JW
Does this cam require a lifter girdle or anything else not obvious? With 1.6 rockers, would it need notched pistons with Edelbrock heads? What lifters would be needed for this? Interested enough to explore it as I already have an electric fuel pump and a new motor waiting for heads and intake.
Greg, the only special equipment this cam will require is the thrust bumper, I can provide that, along with the roller lifters that go with this cam. Pm me for details. No, this is a very mild profile, no lifter bore girdle required. The requirement for valve reliefs in the pistons will vary with a number of factors, including deck height and type of pistons being used, as well as cam timing with those E heads. The profile on this cam is such that it I would imagine it would clear without any issues, but one would have to check to be sure. I would allow return of this cam should you not be able to use it, you would just be out the shipping fees. JW
Jim How do you think this would work with 9 to 1 compression and a little boost? I'm putting an efi system together and after that is dialed in I am planning on procharging it. Mike
I'll PM you for a full quote on what it would take and further discussion of my future setup since now is the time to make changes.
Lobe center is right for boost, and the good idle quality will not fuss with the EFI too much. With lower compression I would advance the cam a couple degrees, and it should work great. JW ---------- Post added at 02:12 AM ---------- Previous post was at 02:06 AM ---------- Yup, cam is what I have.. but have a special package deal with the thrust bumper and morel Hyd roller lifters, at a good discount off retail, if you purchase the cam. These discounted parts will be available to the purchaser of this cam, whenever they want to buy them, so you don't have to come up with a big chunk right away. PM me for price details. JW
