SHAFT MOUNTED ROCKER ARMS

J.Toney wrote:

windsor wrote:Bill - what kind of cost upgrade is the steel over the aluminum rockers?

A lot.

I didn't price the aluminum rockers version of the T&D's vs. stainless, so I don't know. The Jesel stainless option was double+ for the just the rockers and their support was "What Ever?" so I went with T&D and I'm really happy with the service. I'm using a set of their 1.6:1's for the long drives this year at DW.

Direct quote from T$D:

" steel option is $37.00 per rocker arm additional
spring oil hole is $1.00 per rocker

ETA on steel 6-8 weeks out"

You are ahead of me on knowing the pricing. I checked the spring oiler box on all of them: 1.85, 1.90, and the new 1.6's. I went with the bushing option on the 1.9's and the 1.6's but the jury is out as I have no miles on any of them yet, just the conventional needle bearing 1.85's. The Isky Max lifters have been perfect so I'm trying them out. The Dougan's guys like what they have seen on their trophy truck engines and I have followed a lot of their endurance based learnings on my stuff.

Update from Crower:

"The stands of this will be almost the same design as the Aluminum. They will bolt to the head individually and not be bolted together. If you have any other questions Please call 619 690 7802 Shane, I will help you."

Bill, do you have any pics of your T&D setups? Working on setting these up.
Did you  bolt on or weld the exhaust stands?
On my BBF-1 head, I'm thiniking I'll add steel inserts or heli-coil to the mounting holes.

J. Toney I'm just seeing your question. Give a day, I know its been a month, and I'll post up pictures. The T&D's for TFS A460 3X head use one piece stand for all four intake rockers and individual exhaust stands that bolt to the Intake stand/bar. This was part of the changes TFS made in the 3X head thanks to Charlie, Lem, Paul and others giving them input. I'm a bit behind the curve, so for all I know there could be version 4 or 5 by now.

I have 1 pc intakes and 4 individual ex stands, just learning what to determine if and where adjustments are needed. Shaft vs stem height, the pushrod, etc.

This is an old thread but I figured I might as well update it with recent information. I just assembled a set of SR-71 heads with T&D rocker arms. I purchased the whole top end assembly from Kaase. The T&D rocker arms are 1.75 ratio and out of the box everything bolted together without any machine work or shimming required. The rocker arm positions and patterns all looked okay right out of the box. Plenty of clearance for the springs and we were able to drop in 7/16 pushrods without any grinding or modifications. This engine has a Kaase K1 camshaft with 0.800 lift.