|
Author
|
Message
|
|
pegleg
|
|
|
Group: Forum Members
Last Active: 3 Years Ago
Posts: 3.0K,
Visits: 8.7K
|
John, Was going to use them in conjunction with the higher lift rockers. Project died. Be easy to convert them to iron and raise the height. Frank
Frank/Rebop Bristol, In ( by Elkhart) 
|
|
|
|
|
Ted
|
|
|
Group: Administrators
Last Active: 16 hours ago
Posts: 7.4K,
Visits: 205.0K
|
Thanks Trevor. I'll give Jim a shout. Sounds different and interesting.
  Lorena, Texas (South of Waco)
|
|
|
|
|
56 Vicky
|
|
Hitting on all eight cylinders
Group: Forum Members
Last Active: 9 Years Ago
Posts: 5,
Visits: 75
|
Ted, Give Jim Barillaro a call 865 609 1217 (Tennessee) He was using 7 rocker stands per head on his Y Blocks. Cheers Trevor
|
|
|
|
|
Ted
|
|
|
Group: Administrators
Last Active: 16 hours ago
Posts: 7.4K,
Visits: 205.0K
|
Hoosier Hurricane (6/1/2007)
Does Dove make stands to go with his arms?John. Dove only supplies the aluminum 1.6:1 roller tipped rocker arms for a Y as well as a spacer kit to eliminate the springs. It's up to the end user to come up with shafts and stands when using the Dove rockers.
Lorena, Texas (South of Waco)
|
|
|
|
|
Hoosier Hurricane
|
|
|
Group: Moderators
Last Active: 8 hours ago
Posts: 3.7K,
Visits: 322.2K
|
Frank: I was just being silly, didn't know you had worked on them. Are Y stands that hard to find, or does John just want to be able to supply new ones with rocker assemblies? Does Dove make stands to go with his arms? John
John - "The Hoosier Hurricane"
|
|
|
|
|
pegleg
|
|
|
Group: Forum Members
Last Active: 3 Years Ago
Posts: 3.0K,
Visits: 8.7K
|
John, I actually have a matchplate for the Y stands now. Never thought about Iron.
Frank/Rebop Bristol, In ( by Elkhart)
|
|
|
|
|
Hoosier Hurricane
|
|
|
Group: Moderators
Last Active: 8 hours ago
Posts: 3.7K,
Visits: 322.2K
|
Hey Pegleg: There's another big money making project for you. Make Lincoln cast iron stands, with instructions to install them one way on the Lincoln and the other way on the Y Block. You might sell 15-20 sets, and the tooling to cast them and the machining would probably only cost you a couple hundred bucks a set. But the cost of casting them would be really cheap after the tooling is paid for. Look what that would do for your bank account! John
John - "The Hoosier Hurricane"
|
|
|
|
|
Ted
|
|
|
Group: Administrators
Last Active: 16 hours ago
Posts: 7.4K,
Visits: 205.0K
|
gary534 (5/31/2007)
Ted, were the LYB 302-332 rocker stands cast iron or forged steel ?They'd be cast iron.
Lorena, Texas (South of Waco)
|
|
|
|
|
Ted
|
|
|
Group: Administrators
Last Active: 16 hours ago
Posts: 7.4K,
Visits: 205.0K
|
Hoosier Hurricane (5/29/2007)
Ted: Can you explain to my feeble brain why it makes a difference what the stands are made of? My thinking is that it is the bolts that keep the rocker shafts in proper position regardless of the material of the stands. Thanks. JohnThe reasoning for selecting steel or iron over aluminum for the rocker shaft supports has to do with deflection of the rocker shafts at their unsupported ends. Although the Y-Block is not as sensitive to this as the Fe and MEL engines by lieu of being bolted down on each side of the shaft rather than through the shaft itself, it’s still an issue when increasing the valve spring pressures and running these engines into the higher rpm ranges. The steel stands just give an additional amount of rigidity of the rocker shafts at the unsupported ends over the aluminum units and especially if using stock rocker shafts. If just trying to control rocker shaft deflection at the shaft ends, the steel stands are actually only required at the outer positions while the inner positions could potentially still use the aluminum supports. But with expansion rate differences between the aluminum and steel being taken into account, best practice is to stay completely with one material or the other.
.
But as Charlie and Gary both reitterated, I’m partial to the LYB stands as they actually place the rocker shafts up to 0.300” higher on a Y-Block which gives plenty of latitude for adjusting the rocker arm geometry without adding shims to the bottom of stock Y-Block stands. The fact that the LYB stands were also offered in steel for the later model production LYB truck engines is just a bonus.
Lorena, Texas (South of Waco)
|
|
|
|
|
charliemccraney
|
|
|
Group: Moderators
Last Active: 5 hours ago
Posts: 6.1K,
Visits: 441.6K
|
I think he said something about the steel ones being taller, or something, so they can be milled to get the rocker arm geometry right.
Lawrenceville, GA
|
|
|
|