My heart is broken ...

[CB7/KA8]

Well I recently built my top end with the following mods:

Ported/polished F22a6 head
3 angle valve job
Delta 272
Bisimoto valve springs
Bisimoto intake manifold gasket
Head milled to .030"
AEM cam gear
Double stacked a6 intake manifold with butterfly delete
A4 Header and downpipe
Catback exhaust
Accel External Coil
10.2mm ignition wires
NGK spark plugs
Chipped P06 ecu

I was adjusting the idle and it shut off randomly. I went to start it back up and it wouldn't even turn over. I knew right then that I had a bent valve. I took it apart and this is what I found:



I was like, Ok a bent valve just like I thought. I'll just take one off of my old head, throw it on and be good. No biggie. Well, it didn't happen that way. This is what I found when I took the head off:



I totally had a WTF moment. The valve wasn't bent, it was broken at the base and I think the stem caused this damage to the piston. At this point I'm half pissed and half excited cuz this gives me a reason to build the block. So, if anybody is selling an F23 block holla at me.

Its gonna be sitting like this until I find all of the parts I need. Hopefully that won't be long.



You broke my heart CB7 but I love you long time.

[drummersteve7]

wow dude. very interesting. who did the timing belt?

tell me you have some kind of warranty!

[CB7/KA8]

I have a warranty on the head but the only thing that they will fix is the valve. I hired a mobile mechanic to install the head so needless to say there is no warranty. I think my cam gear slipped cuz the adjustment bolts weren't torqued to spec, and that's my fault. Should I just replace the pistons with F23 pistons or get a whole F23 block?

[dbsharp]

that really sucks! good luck on the build. Thats your car saying that it want a built motor! mine said the same thing about 3 months ago, if it hadn't blown up when it did I probably would not have been able to afford to build a motor before I go back to school.

[Joey GT-R]

Why an F23? Why not an F22? More aftermarket support I believe. Plus I've always been sorta against the whole Vtec Head/Non-Vtec Block combo. But if that's what you're after I know a junkyard with one or two. Or....I have an H22 thats stored in a friend's garage I could sell you for cheap. Lemme know....

[av6g6]

That looks horrible. I saw a picture of a vr-4 that broke a valve like that and just kept punchin on the piston and the head and screwed both of them up. But at least you seem optimistic about it instead of giving up.

[drummersteve7]

well good luck man. I know it is kind of a pain in the but.
Hopefully you can get it taken care of.

I never been a huge fan of cam gears. I hear to many slippage stories like this one. no offense.

Is your block currently F23? and did you paint the car red? Your sig shows some other color.

might as well rebuild the bottom end completely.
Aftermarket is sometimes cheaper than stock.
Get a little higher compression piston and go to work from there.

[CB7/KA8]

Why an F23? Why not an F22? More aftermarket support I believe. Plus I've always been sorta against the whole Vtec Head/Non-Vtec Block combo. But if that's what you're after I know a junkyard with one or two. Or....I have an H22 thats stored in a friend's garage I could sell you for cheap. Lemme know....

I was thinking about going the F23 route for higher compression. I don't have a VTEC head, so I don't know what you're talking about. Thanks for the offer about the H22, but my goal is to build an NA F22 that will open a can of whip azz on an H22.

...Is your block currently F23? and did you paint the car red? Your sig shows some other color. might as well rebuild the bottom end completely. Aftermarket is sometimes cheaper than stock.
Get a little higher compression piston and go to work from there.

Nah my block is an F22. I was thinking about upgrading to an F23 block for higher compression but I don't wanna risk getting a bad block. I know my engine so I'm going to keep it and build it. Yeah I painted it red. I guess I need to update my sig. LOL.

That looks horrible. I saw a picture of a vr-4 that broke a valve like that and just kept punchin on the piston and the head and screwed both of them up. But at least you seem optimistic about it instead of giving up.

Yeah I have to stay optimistic man. Plus, when you are building a car you have to expect certain setbacks. This is a learning experience for me and that's priceless.

[Joey GT-R]

I was thinking about going the F23 route for higher compression. I don't have a VTEC head, so I don't know what you're talking about. Thanks for the offer about the H22, but my goal is to build an NA F22 that will open a can of whip azz on an H22.

My b. I meant it the other way around for non-vtec head/vtec block. But you have an F22 so doesn't matter. Why not just source another F22 block? A simple hone and bore should do the trick for one you might find in a junkyard. Or there's a guy in my area who was building an F22 but stopped. Not sure where he was with it but I could look him up. Bisi has his piston lineup that makes 12.5:1. Couple that with his header and level 2 cam youd probably be looking pretty good. Don't forget that there's an adapter so you can fit H22 manifolds so the EuroR or Skunk2s would be an option at that point.

I noticed you posted only the springs in your head, you don't have his retainers and valves as well? Personally if anything would be my next move, it would be that; to avoid any repeats of your current situation.

[CB7/KA8]

My b. I meant it the other way around for non-vtec head/vtec block. But you have an F22 so doesn't matter. Why not just source another F22 block? A simple hone and bore should do the trick for one you might find in a junkyard. Or there's a guy in my area who was building an F22 but stopped. Not sure where he was with it but I could look him up. Bisi has his piston lineup that makes 12.5:1. Couple that with his header and level 2 cam youd probably be looking pretty good. Don't forget that there's an adapter so you can fit H22 manifolds so the EuroR or Skunk2s would be an option at that point.

I noticed you posted only the springs in your head, you don't have his retainers and valves as well? Personally if anything would be my next move, it would be that; to avoid any repeats of your current situation.

Yeah that's what I've decided to do. I'm going to build the block that's in the car though cuz I'm already familiar with it. I'm gonna have to look into those Bisi pistons. The compression might be too high though cuz I have a milled head (.030"). I actually ordered the valve springs and retainers but they forgot to send me the retainers and I was pressed for time so they gave me a refund. I ordered them because I have a Delta 272 cam and I needed some stiffer springs. I think I'm going to keep the valves stock though, I just had them redone. Plus I'm not trying to spend a fortune on this car, just enough to give me a little bump. I'm going to spend the big bucks on supercharging my Z.

[Joey GT-R]

LOL you can't say youre not trying to spend the big bucks and then build an F22 to outpower an H22....I want to get a Z and supercharge it myself. But the prices of those kits....I'll be 40 before that happens.

[ncoutlaw]

tony hit me up when you get an chance

[CB7/KA8]

LOL you can't say youre not trying to spend the big bucks and then build an F22 to outpower an H22....I want to get a Z and supercharge it myself. But the prices of those kits....I'll be 40 before that happens.

LMAO! True, true. That was definitely an oxymoron. Hit up the dude that you mentioned that was building the F22 and see how far he got on it. I'm actually from that area. I used to live in Newport News and I graduate from NSU. My mom lives in Suffolk.

tony hit me up when you get an chance

Yes sir

[eazyduzit509]

Duuuude. I sorrys...

[jimy]

Just swap a H22. Its your calling.