Yeah, I've been pretty lucky so far myself. I think that my batch was an older batch of PAC springs though. I bought em at a Super Chevy show back last June 06 and the box already was faded and looked old.

I think the reports were that they usually gave up the ghost with in about 300 miles or so. I've exceeded that but I can't help but feel a lil worried. So far all of my blasts to 6600 have been w/o peril so maybe I'm good.

 

To each there own here, but we all know what happens when you drop a valve.

If I had blue stripe springs and appeared that they were working out just fine, I would still replace them to ensure that I did not have problematic batch. The piece of mind knowing that the motor is not at risk of dropping a valve would be worth the cost of new springs and the couple hours of install time.

Comp may even be willing to replace the blue stripes for free if they are approached the right way.

 

What makes this whole deal more confusing is how pac used the blue stripe, and then the new manufacturer for comp used it also (most likely to copy). This made the change not recognizable. Comp made a mistake trusting a cheaper company at their names expense.

 

If it drops a valve that'll be a good excuse for some Dart's

 

[QUOTE=Vicious95Z28;5016733]If it drops a valve that'll be a good excuse for some Dart's[/QUOTE

I like that theory. I'm not sure if mine are some of the ones to look out for or not. The time line says they might be. But the shop said if they were going to break, they would have done so by now. About 1500 miles on them and many 6400rpm pulls. So far so good. I'll take my chances, if it breaks, it breaks.

 

Here is one of the Batch numbers from the thread on this board.

#49826

 

If it drops a valve you'll be replaceing alot more than just the heads...

 

I got the PAC 1518s (nitrided 1218s).. couldn't be happier with the stability of the valvetrain, went with the upgrade just for peace of mind but a nice option to have to choose from..

IMO this 918 and comp R lifter business has left some of us with a big question mark when it comes to comp and their products.

 

Glad I was not the only one thinking this.

 

I would think with the mods in his sig he's no newb, and he realizes the consequences.

 

Crap, that's the batch number I have.

 

How many miles you got on them Doug?

 

None yet, they're still in the box.

I was going to do the cam this winter, but it's dead down at my neighbor's shop with either a fragged opti or a burnt out fuel pump.

 

Just get them to exchange them, then and you should be good to go.

 

Yeah I'm going to do that for piece of mind.