Cromoly pushrods from CBP, These any good? Options

[jeffdon]

http://www.cbperformance.com/catalog.asp?ProductID=65

[nathansnathan]

I've always thought mine was quieter with the chromoly, compared to the aluminum and I set them to .003 lash cold even. I've always attributed it to chromoly being far less resonant than aluminum.

Some say it's the spring spacers that cause excessive noise with chromoly which can be remedied by switching to solid rocker shaft spacers.

I personally think people's noisey engines are a result of small exhaust leaks at the head/ heaterbox junction. I have a special way of checking if they're sealed and it's a real trick even then to get it right. If you're just bolting them up and going, chances are they're leaking, from my experience, sounds just like noisey valves to me.

[jeffdon]

I've always thought mine was quieter with the chromoly, compared to the aluminum and I set them to .003 lash cold even. I've always attributed it to chromoly being far less resonant than aluminum.

Some say it's the spring spacers that cause excessive noise with chromoly which can be remedied by switching to solid rocker shaft spacers.

I personally think people's noisey engines are a result of small exhaust leaks at the head/ heaterbox junction. I have a special way of checking if they're sealed and it's a real trick even then to get it right. If you're just bolting them up and going, chances are they're leaking, from my experience, sounds just like noisey valves to me.

Yeah, I think i could have done a better job of evening out the SS heat exchangers where they meet the heads. Just one more thing to do when I drop the engine.

But dammit, just did a nice little rip in the car, and its purring. What to do?