My 340

Is that pushrod 8" long? I've always ended up using a pushrod in the 7.2 - 7.3 range. I having never run the heads you have but I would definitely be looking into pushrod length and valve train geometry.


I missed that 8 inch length. That’s pretty long. I think I’m in the 7.500 range and I use a B3 correction kit.

They might not be quite that long but it’s close. If IIRC I’ve milled pretty close to .100 off.