Rocker Geometry!

pomonamissel said
those rockers are steel right , and there weight over or under the alloy t&d's . steel ones seem more bullet proff . should i make my own shafts from heavy wall chromol tube or are their shaft good to go as well . i'm building a 470 ci stage 6 alloy chapman mw port'd n flow'd by dave story in ky . mw twin fours new mopar intake match'd pair of 750's . good rods n pistons , run some street , some strip . spiro jannings of redline cams is grinding my cam , he has ground cams for dave that would turn'd 8800 on a truck pulling wedge made 808 hp on gas one carb . i'm not thinking that number , not buzzing it that number just 75-8 in a super stock set up 63 fury . so my point is nascar over nhra built race engines . with the old school look .

The last rocker pic is of T&Ds with the steel option. As far as weight is concerned, it's not the total weight of the rocker that is important, rather the weight seen through rotational movement, or "moment of inertia". Its kind of like a crankshaft. A heavy crank does not take out bearings and other parts, but an out of balance crank will. They idea is to minimize the rotation mass, and to balance it out as much as possible. That being said, I haven't weighed them to see what the difference is, but it isn't much. The steel rockers have a lot less material than the alloy rockers. They would easily turn 8000+ rpm.

The rocker shafts are very nice straight from T&D, and there is an offset shaft option if necessary. It would likely cost a lot more to do the set piece by piece.

I would encourage anyone who is interested in getting Mopar rockers with great geometry, to email us. We have purchased over $10,000 worth of custom rockers in the last 3 months, but we want to show that this is not just coincidence.