SHAFT MOUNTED ROCKER ARMS
+22
Curt
steven gregoire
bruno
Nevs
powerstrokeace
John Myrick
rmcomprandy
DanH
BigDave65
Doug Rahn
CDMBill
cletus66
Paul Kane
Scott Foxwell
dfree383
Wheelie58
schmitty
95lightiningguy
138
cool40
Lem Evans
c.evans
26 posters
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Re: SHAFT MOUNTED ROCKER ARMS
blem head.got a hellofa deal on them tho!lol. i think the ex bolt hole got drilled little deep.IDT repaired it before i got them.138 wrote:lookin good...but what is the weld for?
cool40- BBF CONTRIBUTOR
- Posts : 7307
Join date : 2009-08-31
Age : 53
Location : on the 1/8 mile dyno
Re: SHAFT MOUNTED ROCKER ARMS
i have a set of these rockers, and im still struggling to find some valve covers that fit properly. any body have a number that fits?
steven gregoire- Posts : 68
Join date : 2013-11-24
Age : 47
Re: SHAFT MOUNTED ROCKER ARMS
https://i.servimg.com/u/f44/14/44/77/74/valve_10.jpg
i got these from BF Evans.they work with a little trim work.lolsteven gregoire wrote:i have a set of these rockers, and im still struggling to find some valve covers that fit properly. any body have a number that fits?
cool40- BBF CONTRIBUTOR
- Posts : 7307
Join date : 2009-08-31
Age : 53
Location : on the 1/8 mile dyno
Re: SHAFT MOUNTED ROCKER ARMS
Deff nice looking covers. did they clear the exh valve spring thats close to that lower corner bolt?
steven gregoire- Posts : 68
Join date : 2013-11-24
Age : 47
Re: SHAFT MOUNTED ROCKER ARMS
https://i.servimg.com/u/f44/14/44/77/74/valve_11.jpg
after i "worked"on them.lol you also need to notch the top rail for push rods.steven gregoire wrote:Deff nice looking covers. did they clear the exh valve spring thats close to that lower corner bolt?
cool40- BBF CONTRIBUTOR
- Posts : 7307
Join date : 2009-08-31
Age : 53
Location : on the 1/8 mile dyno
Re: SHAFT MOUNTED ROCKER ARMS
I have some polished, billet rail sheet metal valve covers that will work with them.steven gregoire wrote:i have a set of these rockers, and im still struggling to find some valve covers that fit properly. any body have a number that fits?
Curt- Posts : 2787
Join date : 2009-02-09
Age : 61
Location : Henrietta, Texas but mostly on the road
Re: SHAFT MOUNTED ROCKER ARMS
I have used upwards of an inch of valve lift and over 1,000 lbs. of open valve spring pressure with STUD rocker mounting.
Longer exhaust studs and deeper heli-coils on the exhaust side and a good girdle on top maybe was not needed however, absolutely no problems at all have arisen doing that. Finding some original 7/16" Ford guideplates was an original problem however, I think Trick Flow now is providing them, also.
Longer exhaust studs and deeper heli-coils on the exhaust side and a good girdle on top maybe was not needed however, absolutely no problems at all have arisen doing that. Finding some original 7/16" Ford guideplates was an original problem however, I think Trick Flow now is providing them, also.
Re: SHAFT MOUNTED ROCKER ARMS
URL=http:/r/s1297.photobucket.com/user/Toney460/media/Mobile%20Uploads/image_zpsrtpjifkh.jpeg.html][/URL]s
T&D one piece intake bar.
T&D one piece intake bar.
J.Toney- Posts : 397
Join date : 2009-08-18
Location : Kent CIty, MI
Re: SHAFT MOUNTED ROCKER ARMS
Glad to see you got the T&D and I apologize for not seeing your PM for so long. I'm sure you'll be happy with the T&D. I'm running T&D now on both my 598" in the '87 Fox and 572" I'm finally finishing for the '71 Convertible. Both are stainless rockers, the fatigue life on aluminum is too unpredictable. At a minimum I would tell folks to run stainless on thw exhaust side as a failure there messes up more than just the rocker as the intake openng event will break something as the intake tries to open against the cpatured cylinder pressure with no exhuast event.
I'm really impressed with the T&D and the service they have provided in helping me evolve the combinations for more power and reliability. I have their spring oiling option, something that seemed risky with aluminum rockers, and valve spring life is measuarably better.
They also stay amazingly consistent when I check the lash.
I'm really impressed with the T&D and the service they have provided in helping me evolve the combinations for more power and reliability. I have their spring oiling option, something that seemed risky with aluminum rockers, and valve spring life is measuarably better.
They also stay amazingly consistent when I check the lash.
CDMBill- Posts : 182
Join date : 2010-08-10
Re: SHAFT MOUNTED ROCKER ARMS
Bill - what kind of cost upgrade is the steel over the aluminum rockers?
windsor- Posts : 1167
Join date : 2009-08-10
Location : St. Pete/Northern Va.
Re: SHAFT MOUNTED ROCKER ARMS
A lot.windsor wrote:Bill - what kind of cost upgrade is the steel over the aluminum rockers?
J.Toney- Posts : 397
Join date : 2009-08-18
Location : Kent CIty, MI
Re: SHAFT MOUNTED ROCKER ARMS
I spoke to Crower about their shaft system for A460 heads and while their aluminum is generally a bit pricier to begin with, their stainless steel rocker upgrade is only about $150 more, they told me. So, this is another option out there and everyone seems to like their stainless stud mounted rockers a whole lot.
Last edited by windsor on June 14th 2016, 3:49 pm; edited 1 time in total
windsor- Posts : 1167
Join date : 2009-08-10
Location : St. Pete/Northern Va.
Re: SHAFT MOUNTED ROCKER ARMS
i always ran crower stud mount rockers and never had a problem.im sure their shaft setup is good quality also. What kinda $$ are they?windsor wrote:I spoke to Crower about their shaft system for A460 heads and while their aluminum is generally a bit pricier to begin with, their stainless uograde is only about $150 more. Another option out there and everyone seems to like their stainless stud mounted rockers a whole lot.
cool40- BBF CONTRIBUTOR
- Posts : 7307
Join date : 2009-08-31
Age : 53
Location : on the 1/8 mile dyno
Re: SHAFT MOUNTED ROCKER ARMS
https://m.summitracing.com/parts/cro-75789 This lists the Motorsports version as $1529 in aluminum.
https://m.summitracing.com/parts/cro-75750 $1549 for TFS A460 aluminum.
In both of those listings you'll notice it says both versions have a one piece intake stand. I'll ask about that as well.
If you look up the part number for the intake stand it's almost $300 https://m.summitracing.com/parts/cro-75400x320i
while a new exhaust stand is only $50 https://m.summitracing.com/parts/cro-75400x320e
So sounds about right.
https://m.summitracing.com/parts/cro-75750 $1549 for TFS A460 aluminum.
In both of those listings you'll notice it says both versions have a one piece intake stand. I'll ask about that as well.
If you look up the part number for the intake stand it's almost $300 https://m.summitracing.com/parts/cro-75400x320i
while a new exhaust stand is only $50 https://m.summitracing.com/parts/cro-75400x320e
So sounds about right.
windsor- Posts : 1167
Join date : 2009-08-10
Location : St. Pete/Northern Va.
Re: SHAFT MOUNTED ROCKER ARMS
J.Toney wrote:A lot.windsor wrote:Bill - what kind of cost upgrade is the steel over the aluminum rockers?
I didn't price the aluminum rockers version of the T&D's vs. stainless, so I don't know. The Jesel stainless option was double+ for the just the rockers and their support was "What Ever?" so I went with T&D and I'm really happy with the service. I'm using a set of their 1.6:1's for the long drives this year at DW.
CDMBill- Posts : 182
Join date : 2010-08-10
Re: SHAFT MOUNTED ROCKER ARMS
Direct quote from T$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"
" steel option is $37.00 per rocker arm additional
spring oil hole is $1.00 per rocker
ETA on steel 6-8 weeks out"
windsor- Posts : 1167
Join date : 2009-08-10
Location : St. Pete/Northern Va.
Re: SHAFT MOUNTED ROCKER ARMS
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.
CDMBill- Posts : 182
Join date : 2010-08-10
Re: SHAFT MOUNTED ROCKER ARMS
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."
"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."
windsor- Posts : 1167
Join date : 2009-08-10
Location : St. Pete/Northern Va.
Re: SHAFT MOUNTED ROCKER ARMS
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.
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.
Last edited by J.Toney on May 11th 2019, 2:11 pm; edited 1 time in total
J.Toney- Posts : 397
Join date : 2009-08-18
Location : Kent CIty, MI
Re: SHAFT MOUNTED ROCKER ARMS
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.
CDMBill- Posts : 182
Join date : 2010-08-10
Re: SHAFT MOUNTED ROCKER ARMS
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.
J.Toney- Posts : 397
Join date : 2009-08-18
Location : Kent CIty, MI
Re: SHAFT MOUNTED ROCKER ARMS
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.
AndyF- Posts : 15
Join date : 2024-01-31
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