Pushrod tube in cast iron head

[007]

Rhs 360x has a little hole in port. What’s the best way to fix it? Thank you

[hondo383]

What diameter is the pushrod hole?
Brass model tubing from the hobby store or mcmaster if you can get a size to fit snugly with green loctite
Or a section of old tape measure with a matching radius applied with some epoxy

[grant6395]

Z-spar Splash zone. Works very well for that kind of thing. No tube needed.

[Frankshaft]

Z-spar Splash zone. Works very well for that kind of thing. No tube needed.

Those can be tubed. That's a better fix in my opinion. As mentioned above for the source. I believe they are 9/16 in those. In fact, I would max that pinch out and tube them all. Those heads are very tight there. Just break thru, don't get overly carried away. You still want some meat to hold the sleeve.

[007]

Thank you for your help guys

[ProPower engines]

Z-spar Splash zone. Works very well for that kind of thing. No tube needed.

Those can be tubed. That's a better fix in my opinion. As mentioned above for the source. I believe they are 9/16 in those. In fact, I would max that pinch out and tube them all. Those heads are very tight there. Just break thru, don't get overly carried away. You still want some meat to hold the sleeve.

Hughes and I believe Mancini both sell tubes designed for those heads. I have used several sets and are easy to install and align to the push rod angle.
They work well on the stock magnum heads as well. A bit of epoxy of choice being Belzona or comparable epoxy to finish and retain them permanently

[Geoff2]

Yes, tubes work. The Pontiac 455 SD heads came factory fitted with push rod tubes.