I called comp cams. The 1622-16 rockers we're designed to be pushrod OR shaft oiled. And in case anyone wanted to know the 8043-16 solid roller lifters that fit magnum blocks also allow for pushrod oiling.
I believe those are the PRW stainless rockersHi there
I just put Trick Flows on my 340.
Call Mike @ b3 racing engines
717 497 6572
The Rocker arms I bought from him oil through the push rods too.
And they come in 1.6 ratio which helps the geometry as well.
Just my 2 cents...
Good luck on your project!!
Yes that's correct.I believe those are the PRW stainless rockers
I called comp cams. The 1622-16 rockers we're designed to be pushrod OR shaft oiled. And in case anyone wanted to know the 8043-16 solid roller lifters that fit magnum blocks also allow for pushrod oiling.
That's good to know, if I upgrade my rockers to those (currently using stock stamped-steel) I could remove the external oiling stuff.
I'd be curious to see just how much oil flows through those from the pushrods though.
I’ll fire this sucker up without covers just to see what kind of mess I can make. LolTime for some plexiglass valve covers.
Time for some plexiglass valve covers.
not sure, I have a roller block that uses stock magnum hyd roller lifters. That cam is .560/.565 seems to be doing just fine. The other engine is a magnum block with Solid roller lifters and that cam is .640/.645 lift, Comp 8043-16 lifters.That is a lot of good info. I have both LA and Magnum blocks. Just trying to keep cost reasonable. I guess it comes down to trying to retro fit roller lifters on an LA block or oiling the valve train on the magnum block. It might be a chore drilling the magnum block for thru the block oiling... It could be done. Slow and easy.
I have build a few small blocks. I want to use a roller cam in this next build. Been waiting for the Trick Flow heads. I have several iron heads to choose from X heads, ported magnum heads and W2's
If i use the Magnum block is there a limit to the lift a stock Magnum roller lifter can handle?
not sure, I have a roller block that uses stock magnum hyd roller lifters. That cam is .560/.565 seems to be doing just fine. The other engine is a magnum block with Solid roller lifters and that cam is .640/.645 lift, Comp 8043-16 lifters.
I would agree.I have seen a lot of crate engines in that .560-.570 range as well with no known issues. I did ask Howard cams about it a for cam in that range, and this was their direct quote to me. "That would be the upper limit on that lifter. Our part #91713 will handle higher lift, spring pressures & RPM."
which oneWhat’s the cams “lobe lift?”
solid roller is .427/.430Ehhh, what ever one has the largest lobe lift.
the one thing I have noticed with these trickflow heads is the bolt hole doesn't line up with the last shaft stand anymore. So it will just take a little more of an angle to break into the stand.Nice discussion
I've run shaft rockers with shaft oiling AND through the pushrod oiling for the pushrod cups
It looks so easy to add outside oiling for shaft rockers that I am not interested in oiling the shaft bushings and the rocker tips/ rollers only through the pushrods
Should be, the rockers have a groove between the bushings which is where the oil hole from the adjuster/pushrod goes in, then there is another oil hole on top of the rocker.Thats good news! I guess there is enough oil for the pivot point on the shaft too.