Share |
DragRaceResults.Com    Bracket Talk    Bracket Talk Forum  Hop To Forum Categories  Tech Talk - by Abruzzi    T&D rocker install.
Go
New
Find
Notify
Tools
Reply
  
T&D rocker install.
 Login/Join
 
DRR S/Pro
Picture of Big Steve
posted
Installing my first set ever, brand new 24* Profiler Sniper X heads. Have read the instructions, watched a U tube on it and seem pretty straight forward when setting the stand heights and getting push rod lengths
Looking for any tips, do's and don'ts etc from those who have done it

Thanks
 
Posts: 1974 | Location: On the the dark side now | Registered: April 30, 2010Reply With QuoteReport This Post
DRR Sportsman
posted Hide Post
I suggest starting with the heads on a work bench,get the stand height correct then move the heads to the block. In my experience this has been for me the easiest way. Don't forget to include a head gasket when you mock up the heads on the block to measure push rod length. You are right it is not very hard, just time consuming.
 
Posts: 424 | Location: Going to or returning from the chipmine. | Registered: July 01, 2011Reply With QuoteReport This Post
DRR Trophy
posted Hide Post
be ready to grind on the stands to fit the heads
 
Posts: 23 | Location: Kentucky  | Registered: February 28, 2009Reply With QuoteReport This Post
DRR Trophy
posted Hide Post
Make sure you have pushrod clearance.
 
Posts: 113 | Location: pa | Registered: September 23, 2002Reply With QuoteReport This Post
DRR Sportsman
posted Hide Post
Spanky, where is the pushed clearance an issue? I have never seen that issue but probably have not installed as many sets as you. I have only done a few on some small blocks and one big block.
 
Posts: 424 | Location: Going to or returning from the chipmine. | Registered: July 01, 2011Reply With QuoteReport This Post
DRR S/Pro
posted Hide Post
quote:
Originally posted by Wooley:
Spanky, where is the pushed clearance an issue? I have never seen that issue but probably have not installed as many sets as you. I have only done a few on some small blocks and one big block.


On the intake side up top next to the intake ports. The EX's usually have tons of room. Make sure you use the correct diameter PR when you check for clearance.

Setting the kit up is easy, just take your time. If the heads are new with standard valve lengths for that head, it really should bolt right on. If it's older with many VJ or valve length changes then you will have some adjusting to do.
 
Posts: 1937 | Location: Tewksbury, MA,USA | Registered: November 03, 2000Reply With QuoteReport This Post
DRR Sportsman
posted Hide Post
Ok,have that on the set I am working with now. Brodix heads with Harland sharp shaft rocker and 3/8 pushrods. Had to get creative but it works.
 
Posts: 424 | Location: Going to or returning from the chipmine. | Registered: July 01, 2011Reply With QuoteReport This Post



DRR S/Pro
Picture of Big Steve
posted Hide Post
TI valves with lash caps on the intake, 1/2 inch push rods on the exh, Reher morrison ran a cnc push rod clearance program on the heads but David said I still may have to det the die grinder out
 
Posts: 1974 | Location: On the the dark side now | Registered: April 30, 2010Reply With QuoteReport This Post
DRR Trophy
posted Hide Post
Definitely use the stand height gauge the send. T&D was very helpful with getting the right shims sent to me as well
 
Posts: 12 | Location: Texas  | Registered: October 05, 2017Reply With QuoteReport This Post
DRR S/Pro
posted Hide Post
If you run big lift the stand hight checking tool won't be right. It's a matter of opinion on what is correct as far as the pattern and where you want the roller on the valve tip. Make absolutely sure the roller tip lands square on the top of the valve. Mine did not and required machining the stand


.991 60'
4.36 @ 159 so far.....
6.86 @ 198 trying for more......

533" single carb
235" Harrison 4-link
 
Posts: 1077 | Location: Nova Siri, Italy | Registered: June 03, 2009Reply With QuoteReport This Post
DRR Pro
Picture of Bruce Williams
posted Hide Post
quote:
Originally posted by Will Harrison:
If you run big lift the stand hight checking tool won't be right. It's a matter of opinion on what is correct as far as the pattern and where you want the roller on the valve tip. Make absolutely sure the roller tip lands square on the top of the valve. Mine did not and required machining the stand

Will did you have to machine the bottom of the bar to get the rocker fulcrum closer to the head? On the intake side with the tall ports I did not want to remove any more material from the head as it was already thin.


Bruce Lee Cool

Experience is what you get when you don't get what you want.
 
Posts: 1974 | Location: Chandler Arizona | Registered: August 11, 2005Reply With QuoteReport This Post
DRR Pro
Picture of AlkyIROC
posted Hide Post
I bought a set for my Dart 360 heads. Intake stands were too low because of the longer intake valves I use plus the lash caps. If I shimmed the stands up enough to work, the bolt hole that ties the intake stands to the exhaust stands would have been out of the adjustment slot. Exhaust valves are standard length and the exhaust stands worked perfectly.

Contacted T&D. They had the taller stand I needed and it only cost me postage to have it exchanged. No complaints from T&D with their service.

As mentioned above, Do the stand height adjustment on the bench. It's not hard to do, just time consuming.

After bolting the heads onto the engine, I then calculated the pushrod length required. When I went to put the pushrods in, I found a few pushrod passages through the head needed to be modified to allow room for the pushrods. Unlike pedestal rockers, shaft rockers position the rocker directly over the valve. This means the pushrod angle changes slightly and some clearancing through the head may be required.

Nice thing about the shaft rockers is that you don't need super tall valve covers over them. When I ran pedestal rockers, I also had a girdle on them. Needed tall rocker covers plus rocker cover extensions to cover everything.


www.hardtail.com Stephen's Racing Page
Best ET: 9.029
Best MPH: 150.45

 
Posts: 1344 | Location: Calgary | Registered: June 06, 2001Reply With QuoteReport This Post
DRR S/Pro
posted Hide Post
quote:
Originally posted by Bruce Williams:
quote:
Originally posted by Will Harrison:
If you run big lift the stand hight checking tool won't be right. It's a matter of opinion on what is correct as far as the pattern and where you want the roller on the valve tip. Make absolutely sure the roller tip lands square on the top of the valve. Mine did not and required machining the stand

Will did you have to machine the bottom of the bar to get the rocker fulcrum closer to the head? On the intake side with the tall ports I did not want to remove any more material from the head as it was already thin.
I removed from the bottom of the stand, but not necessarily to get it closer to the head but to make the rocker land square on top of the valve. The stands were made crooked. Once they measured straight, they landed perfectly square.


.991 60'
4.36 @ 159 so far.....
6.86 @ 198 trying for more......

533" single carb
235" Harrison 4-link
 
Posts: 1077 | Location: Nova Siri, Italy | Registered: June 03, 2009Reply With QuoteReport This Post
DRR Sportsman
Picture of Bad News
posted Hide Post
quote:
Make absolutely sure the roller tip lands square on the top of the valve. Mine did not and required machining the stand.
I removed from the bottom of the stand, but not necessarily to get it closer to the head but to make the rocker land square on top of the valve. The stands were made crooked. Once they measured straight, they landed perfectly square.[/QUOTE]

Just went through this with a set of Jesels on a set of BMF heads. Each exhaust stand had to be altered. Was .010 -.000 on each stand. Hand lapped and pattern checked multiple times on each ex valve until a full pattern was made across the valve tip. It started out just showing on the first .080 of the tip. Unknown whether it was a stand problem or rocker pad machining problem.

This is why pre assembly is so important, too many bad tolerances, you cannot take for granted that everything is correct. Between degreeing the cam, checking p/v, and making the stands correct, i believe the rings were seated already.
 
Posts: 856 | Location: ft laud | Registered: September 02, 2004Reply With QuoteReport This Post



  Powered by Social Strata  
 

DragRaceResults.Com    Bracket Talk    Bracket Talk Forum  Hop To Forum Categories  Tech Talk - by Abruzzi    T&D rocker install.

© DragRaceResults.com 2023