Hello,

I have a 340 with X heads and the shaft-mounted rocker assembly. I need to change some of the valve seals. I really do not want to remove the heads to do it.

What valve spring compressor tools do you guys use to compress the valve springs with the heads still bolted to the block for an LA engine?

Not sure what questions to ask or specifics to provide. Please ask for details if needed.

TYIA wrench