This is what I found when i took the head off. Need suggestions

[chicos240]

I took my head off, because of a blown HG but I found more than what I bargained for. I need suggestions.Full rebuild?Patch the wall?

[Emperor_Tha]

bore it out and get some sleeves.

[hpmachine]

Dude is that a hole punched in the valve?

[jr_ss]

You're going to need to get a full rebuild done. You melted or your car melted that piston and where the hell did that piece of valve go? Wow man, that sucks. Good luck getting it back up and running.

[chicos240]

yes it is...but I think thats from when I took the head off, i heard the valve "clink". Do I NEED sleeves if I bore it out? Also why are after market pistons so damn expensive?

[IanS]

can anyone say lean condition

[chicos240]

yea i will need a full rebuild.....argggghhhh!!!!I have no clue where that piece of valve is

[jr_ss]

They are so expensive because they are forged. Just like wheels cast is cheaper than forging. I don't think your crank and what not is damaged, so you might be able to get by with just a bore and some new pistons, but I'm not a machinist and can't tell you that for sure.

[srpowered240sx]

id buy a new long block, or take those pictures to a machine shop, and see if they have a better suggestion. bore the hell out of it maybe??

[Deadrodent]

dude that totally blows paralyzed midget pen15. what kind of setup were you running? this kind of thing makes turning up the boost on my motor VERY scary

[chicos240]

dude it wasnt boost. It was bad luck. Oh well. Anyone have a long block in their back pocket?

[hpmachine]

bad luck generally doesn't melt pistons and bust valves.

[chicos240]

ok, the bad luck of possibly having a vacuum leak, that created a misfire that then curled the piston...then somehow blowing the HG, then wile removing the head having the bad luck to break a valve

[GTS4-R]

bore it out???!!! do u guys not see that massive hole in the wall (sleeve) he MIGHT be able to press out the factory sleeve or cut em then bore the block and install new sleeves and pistons but thats still maybe....i'd tell you ro find a short block somewhere

[Slipstream]

That looks like it's too far out to just bore it to a larger piston. Best bet would be to sleeve it or find another block. I would check the entire rotating assembly to make sure everything else is fine. The metal knocked off the piston, ring, and bore had to go somewhere.

ps: I have a spare block, but it needs to be honed for 87.5 pistons though.

[chicos240]

you have a spare s14 block? that just needs honing?

[Hijacker]

I can't see the extent of the damage in the photo., so I'm just gonna say this:Stop speculating. Tear the block down and take it to a machine shop. Have them assess the damage and tell you your options. If they have the block in hand, they can give you your options better than showing them a picture that doesn't give the full depth of the damage.

[Slipstream]

It's an S13 block. I had 86.5 pistons, and didn't want to buy new ones.