Valve leaking oil!

[H311RA151N]

I wouldnt buy the fel-pro gasket set. It likes to fall out when you flip it right side up to put the valve cover on. The car i just bought was leaking with a fel pro gasket set. The cam gear side was cut by the valve cover when it was put on. And dont use rtv silicone or anything eather. Here is the part numbers for Honda

12030-PT0-000 Full valve cover gasket set. $26.82

If you wanted to do lowers here they are.
91301-PT0-003 $10.84 for all four.

It costs just a little more to do it the right way.

[SilverShadow]

Make a Diy on the header install...I'm guessing it's a bolt off-bolt on process? The seller states to have it professionally installed. Like asked, can a muffler shop do it? I do trust my shop 100% They do it all day... But what to remove to get to that, other than the heat shield and O2 sensor?

[Tabor]

It is possible to weld cracks in cast iron exhaust manifolds. I have done it successfully before. However, it might not be cost effective unless you have a buddy with a welder. The secret is to actually pre-heat the cast iron like you are supposed to and to use the right rod (it has a very high nickel content if my memory serves).

[Mishakol129]

Make sure three old pistons and one new one weigh the same.

It should weigh the same or close enough, its a honda piston and all 4 of them will be made from the same company. I'll just tell the machinist to weigh the cracked one with the new one and go from there.

I saw the pistons Napa ordered me today... the only difference was the oil passages were replaced by a single opening on the side... How strange, I would imagine OEM pistons are much better than this since they have like 8 different holes going all around the oil ring lands.

Looks like aftermarket pistons for Honda's are a nono.