We had issues with ours at 140hrs the last time before we changed them.

Pulling the headers this week and pressure testing them. And while I'm in there going to take the valve covers off to inspect the rockers.
At 98 hrs I will feel better knowing this is done
How many psi should the headers be tested at?
I also was told that they should be tested in hot water?

.

Eddie (YPM),

it seems your PM box is full.

Was a pleasure speaking with you today.




Noli

I have one word for everyone in this thread...... ILMOR!

Lighter, more power, higher rpm rev limit, and best of all its not a merc.

AMEN Lol

Back to the same old with blown bravos, so what's the worst of the two evils?!

400 hours, B1 upper, imco -2 lower, 92-96 mph.

Just my personal experience, yours may very. Oh yea 2 loto shoot out class wins.

Same here we have been running IMCO upper and lowers and have had no issues all yr. We do both checked after every 3/4 races.

Please explain. Your personal experience would be best.

No Sold