Baisley Hi-Performance Rocker ProductBaisley Rocker Arm Conversion Weare the only shop in the world to offer roller rocker conversions for alloverhead valve Harley® engines. The roller tip rocker arm conversion willdramatically reduce valve and guide wear, especially in higher valve liftperformance applications. Benefit is a smoother more controlled valve train. Wemodify the stock rocker arms by adding the roller tip to it.
These modificationsare performed to the original equipment rocker arms which you supply or purchasethe core fromus. We can also change the rocker ratio and correct the rocker arm geometry(valve length modification required). For specs.Key Benefits. Reduced wear on valve and guides. Controlled valve train at high RPMs.
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Cpp Conversion Guide
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I'm switching from rail rockers to roller rockers on my C8VE heads on my 460. This 460 powers my restored 1977 ford F150 shortbox with C6 4x4. I'm running a comp cam extreme 4x4 cam. Jerry's Custom Engines just machined the heads and replaced the original valve springs with taller ones recommended by comp cam. I'm planning on using guide plates and switching out to 7/16 ARP studs.Do I need to machine the the rocker stud boss's? I've read many forum posts where experienced builders claim that you absolutely have to machine at least the thickness of the guide plate off the boss. Yet, others claim that if you select a rocker that fits on the stud so it can be tightened without running out of stud threads and the geometry on the pushrods work, than you don't need to machine.
For example, someone posted that a Harland Sharp S4073 should work with guide plates and no machining. But these those S4073 cost $440, is there a less expensive alternative? Also, if you add taller springs this should help counter the height of the guide plates? Would some scorpion roller rocker with 1.73 ratio work?Does anyone have a configuration of roller rockerarms and guideplates that will work without machining? I want to run 3/8 hardened pushrods, but will not order until I get this figured out so I can measure the pushrods. I've also read that the guideplates sometime need to be cut and rewelded to deal with this issue.
Any advise or rocker arm suggestion would be appreciated. Quote from 67hallet:'In the 80+ years of 460 experience between me and my two biz partners, we have never had to mill the D0VE stud bosses further down in order to compensate for the addtion of guideplates when installing a roller rocker valve train. Whether or not that modification is really necessary is more of a clearance issue and has no effect on geometry, etc. Someone may find the modification necessary with certain rocker arm brands combined with OEM valve spring installed height, etc. Grizzlyo wrote:quote from 67hallet:'In the 80+ years of 460 experience between me and my two biz partners, we have never had to mill the D0VE stud bosses further down in order to compensate for the addtion of guideplates when installing a roller rocker valve train.
Whether or not that modification is really necessary is more of a clearance issue and has no effect on geometry, etc.That broad faced quoted statement of 'has no effect on geometry' is totally untrue. Geometry IS affected. Without milling the pedestals the pushrod tip will be further inboard to the cylinder when guidplates are used.Whether or not it has any ADVERSE affects upon valve tip, rocker arm or guide wear is something different altogether. Gt350hr wrote: Randy,You might want to rethink that. If the pushrod length and the valve stem height remain the same, the only thing affected is the proximity of the rocker to the hex portion of the stud. Wasatch county property search. Certainly if the pushrod was lengthened or shortened, it would change the contact on the valve.Respectfully,The other RandyIf the guide-plate is higher from the lifter, it contacts the pushrod higher and being that the pushrod is on angle, (if the guide-plate slots are not also moved slightly outward), that higher contact point WILL change the angle of that pushrod to slightly straighter and therefore the tip is now in a different location.Not very much. But, different.The lengths and angles of the sides of a triangle is what geometry is all about.Making that pushrod longer or shorter would change the tip location, also.You can use one against the other and get the tip in the same as original lateral location if the pushrod is longer but, not with the same length pushrod.Last edited by rmcomprandy on May 29th 2015, 6:34 pm; edited 1 time in total (Reason for editing: spelling).
Cal Poly Pomona Conversion Guide
Gt350hr wrote: Randy,Yes you are correct. I'm sorry, I wasn't thinking in terms of the cant. I just drew it up on cad and it 'could' move the rocker sideways as much as.005 (more if it were a 'stepped' plate like Manley offers). Then I looked at the 'slop' in the guide plate to pushrod and didn't worry any longer.
To open Edison press (Ctrl + E) in a Sampler Channel, or load from the effects menu into mixer track/s. Edison Video Tutorials. An alternative to Edison is. Edison is a fully host-integrated audio editing and recording tool that loads into any VST compatible effects location and will then record or play audio from that position. An audio editor as a plugin. Or standalone. You may load as many instances of edison as you desire, in. Fl studio edison recording tutorial. Edison loads into an effect slot (in any Mixer track) and will then record or play audio from that. Click here to see a video tutorial Edison Loop Recording.
LOL The same would hold true for changing pushrod length. The rocker would move a bit side to side.RGYep. You got it.That is why I mentioned 'ADVERSE affects' not meaning the same as actual tip location changes.
It is done all the time with no adversity but, it does make things slightly different.