I have my spare set of 5.3 heads outside, under cover. Well, I checked them today and the places where the valves sit (valve seat or something) is mildy rusted on them. Will my heads be okay because of the rust? How can I get that off?

The other question is about the valve size. I bought the 2.02"/1.575" Manley valves for my stock sized LS1 that'll be going in my truck. The heads are gonna get the stage 2 headwork/valve job from Patriot Performance. Are these valves too big for a daily driver? Should I send them back and get some stock sized 2.00"/1.55" valves?

 

did Naval Jelly or WD-40 not take out the rust?

 

If its very light surface rust, the pitting might not be bad. Might want to get a valve lapping kit and lap them in again.

 

I'm gonna try the WD-40 today. I'll let ya'll know how it turns out. Thanks.

 

What is that?


Well, been spraying it with WD-40 for about 45 minutes. I've been scrubbing it with cloth wet with WD-40 after letting it sit for about 15 minutes. Would lightly scrapping it with steel wool be stupid?

Patriot is gonna do my headwork, can they get rid of it when they do the valve job?

 

They will most likely get rid of it when they lap the valves.
Lapping: There is a compound that you can get at any autoparts place that comes in a rough and soft tube with suction cups on a stick basically. they stick on your valves and you rub the compound where the valve sits and it will slowly grind it down to where the valve is mated to the head and makes a better seal. That was the shortest way of explaining it i could do.

Let us know if you need anything else.

 

Thanks for the info!

 

Send them in and we will take care of it.

 

Not if you use a really fine grade of steel wool, it will actually polish the metal.

 

Thanks! They should be in the mail very soon.

 

Have we given you an RA # for these? If not, shoot us a PM and we will give you one to help keep track of your heads.