Roller rockers

[Myron Piatek]

Some of the composite lifter engines have moderate roller-type pressures. They even recommend starting at 170-180 closed on the seat.

[Chad Rhodes]

Originally Posted by Myron Piatek

Some of the composite lifter engines have moderate roller-type pressures. They even recommend starting at 170-180 closed on the seat.

add a hundred

[Dan Lattimore]

Hi Terry------You're dead on. Worst rule change ever. Started all this BS.

[X-TECH MAN]

Originally Posted by Dan Lattimore

Hi Terry------You're dead on. Worst rule change ever. Started all this BS.

Hi bud......Its good to hear from you. Its a nice 77 degrees here in sunny Fla. today....lol. I see your listed as being in Florida ? Question is....how can the stock racers every get this stuff changed back to some sort of sanity?

[Dan Lattimore]

Hi Terry---I'm still working in Va. with a connection to Jensen Beach for the past 15 years. Wish I was down there with you full time but still have family obligations. I'm afraid class racing will never get back to what we grew up with and love. Too much work for the new sanctioning bodies run by bean counters and not people like you and Farmer. Majority of the class racers are eligable for Social Security and still racing the cars they bought new. As Macarthur said, like the old soldier, "They'l just fade away". As for me I'm putting my ( bought new ) Black 66W30 2dr post together for D/S . So find yourself something to race ( 4 speed of course ) and Craig and I will come to an association race down ther and try to wear your ***** out. Then fry up some burgers and dogs and drink alot of beer.

[X-TECH MAN]

Originally Posted by Dan Lattimore

Hi Terry---I'm still working in Va. with a connection to Jensen Beach for the past 15 years. Wish I was down there with you full time but still have family obligations. I'm afraid class racing will never get back to what we grew up with and love. Too much work for the new sanctioning bodies run by bean counters and not people like you and Farmer. Majority of the class racers are eligable for Social Security and still racing the cars they bought new. As Macarthur said, like the old soldier, "They'l just fade away". As for me I'm putting my ( bought new ) Black 66W30 2dr post together for D/S . So find yourself something to race ( 4 speed of course ) and Craig and I will come to an association race down ther and try to wear your ***** out. Then fry up some burgers and dogs and drink alot of beer.

LOL....sounds good ole friend. Ive been looking and there is one or two Im seriously considering. One is an A/ stick car. I still have my health and got a good buck for my old place in Md. I can afford it now with the left over money after moving here but my garage is much smaller than what I had before and Im having a hard time parting with the $$$$$$.....LOL. The money is to hard to come by being retired (or is that retarded?) Its much more expensive these days as you well know. There are not many that I would love to be out run by other than the "Old Guard". Your ride sounds "SWEET". Take care and drink one for me. See you at the races.
Terry

[Jeff Lee]

My AMX in D/S had 450#'s open pressure when it was running 10.50's. And I know some guys (multi-makes) running around 480#'s nowadays.
I shifted mine at 6800 RPM, not something I would call "extreme", went through the traps about the same.
Broke rockers all the time. Coated them, cryo'd them, ARP 7/16" studs (AMC is like a SBC rocker assembly) best fix was adjust valves every two to three runs. Guide plates & unlimited style valve spring were not legal at the time.
If I were doing it again I would try 7/16" dual taper pushrods with guide plates & a double (triple?) spring.

Some would say the cam profile was wrong. I don't know, had about a half-dozen in the car over the years, all custom grinds. Didn't break rockers too often until the spring pressures got up to 420. But then again the car got faster with the cam and springs.

Now when you look at it, NHRA will allow $1000 billet or tool steel cam cores, $800 Schubeck lifters (that may take out your engine) or tool steel lifters, they'll allow $600 push rods, they will allow beehive or ANY valve spring you want (neither allowed when I ran Stock) that can approach $500 a set, stainless valves, $750+ BBC 8.2L rockers with the whammy treatment and 1/2" rocker studs....but it would be ridiculous to allow $279 Crane Gold roller rockers that would live with the rest of the valve train!