We bought a set of single shaft 1.6 ratio rockers for a set of Indy 440-1 heads were having a problem keeping the push rods in the cup. Have any of you ran across this issue they pop out of the cup just as they start to lift the exhaust rocker than as the rocker gets higher they pop back in the cup.

rubbing the pushrod passage in the head? may need to open them up, also do you have the right offset rocker for those heads if in fact they have a offset for the exhaust.

Yes I did have to relive the head around the intake push rods but the exhaust is wide open no contact what so ever. The set we have is 8210 which I got the part number from T&D before we ordered I've seen other posts about the same problem but they sold the T&Ds and bought Harlan Sharp's before fixing it. This thing is weird I caught it doing it when I was bumping it over to set the lash. It pops out and right back in the intake don't do it at all.

what lifter, if it's a roller is it hitting the tie bar or rivet holding it on, be nice if others that have had this issue would chime in cause i'm running out of ideas,,had a similar issue with a smallblock and was using Erson rockers went to T@D paired rocker set-up and found the ersons were off on their offset and the T@D's fixed that problem.

Comp lifters offset cup on intake it appears that the lash adjuster is at to steep of a angle with the thing on the base and the push rod pops past the cup instead if lifting than it hits the rocker at the shaft and it starts to lift than the cup is in a straight line to the cup and pops back in. I have pictures of the rockers I know its weird we actually ran the car when we put them on before we noticed it and went 10.08 135. The push rod is always in the cup when you look but when you take the shaft off there are witness marks where they were out.

on my Indy maxx block i was seeing this with the stock blue 1.6 ratio indy rockers. they weren't touching the heads, but were in fact touching the block. this was a 400 base build & found the contact point once i had fitted Andy F's valley tray & we were watching the valve train thru the clear plastic cover that came with the valley tray. during assembly i would have put money on it that i had enough clearence, but the clear window showed us we were wrong. But i had exactly the same sympton, you could see the pushrod was trying to get away from the rocker ball when the load was off.

how much adjuster do you have sticking out on the pushrod side of the rocker, may be a pushrod length problem or the rocker alignment need tweeked, does the rockers use a offset drilled shaft if so then that can throw the tip alignment off if its installed wrong (backward). also what Rebel said

The pushrods need 5/16" ball ends. I could see this problem is the pushrods are 3/8" ends?

We have the removable valley cover also so I can see all around the push rod we have Trends 210* radius 5/16 ball .135 wall push rods. We did the adjuster one turn from being topped out toward the rocker we even cut the lash in half. Rebel were yours popping out toward the rocker shaft these pop out in the direction of the shaft. How do I put pictures on here.

no mine were trying to get away from the shaft, if yours are trying to come closer then you definately dont have a clearence issue, i'm more thinking you have too much lash maybe??

My Keith Black engine had 440-1 Indy heads and single shaft T&D rockers and I had to grind the heck out of my block and heads. I too had off-set comp lifter but I ran my standard off-set lifters as it worked out better for me. I would suggest using machinist blueing on the whole pushrod to see if and were it is making contact. May set-up went 8.40's@160mph with zero issues in my Daytona.

I just want to say thanks for all the replies pitts the Trend pushrods are black so any rubbing shows up right away that's hoe I noticed the intakes touching The exhaust push rod is in a near perfect straight line from the lifter to the rocker but the angle between the adjuster and the push rod don't look right the adjuster needs to be more inline with the push rod. It looks like this \adjuster and this is on the base circle.
/ push rod
Not the best artwork.

What valve lift and seat pressures? The only time I have had the pushrods come off the adjuster is when the rocker stand broke. With my current setup, using the max wedge rocker stand/blocks, they are installed to move the rocker shaft up a small amount.

are all of them that way or just one?

It's only on the exhaust the intake doesn't do it I found out that they make a different rocker for Indy that is Indy's design has a taller cup location makes you wonder why what did Indy see a bad angle maybe. 451 the only problem with going up on the stands is the angles get closer so the roller moves across the stem more.

Put up a picture of what you have...

Al I don't know to put pic's up here I'll send them to your e-mail

Sent Al hope you don't mind me sending them to your e-mail

Do you have any pics of the rockers from directly above them looking down at head?

Here ya go