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#1
11-04-2005, 03:09 PM
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bent a valve
so i bent a valve on my 97gst and i need to get my head rebuilt no piston damage whats the best way to go about this just buying a rebuild kid and handing it all to a machinc or do i need a machine shop whats the deal thanks guys....or would i be better off buying a new head off ebay or somthing
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1997 gst (5speed) Apexi 3" turboback k&n intake w/hardpipe greddy type s bov w/ piping Apexi SAFC2 new revised 3g lifters magnacore 10.3mm wires w/ new plugs 
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#2
11-04-2005, 03:31 PM
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Sorry to hear about that...theres a couple routes you can take...
1) If the head isn't ruined just replace the valves that were hit 2) Do the almighty 1g headswap but that will cost some extra $$ unless you are doing it yourself. But the power difference is deffinitely noticable. 3) If the head is ruined just find one locally or like you said off of ebay. I did number two when mine happened and I regreted it at the time but now I'm glad that I did. Good luck!
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 05 Srt4 Agp 3147 w/supporting mods  97 Mx-5 T28, hks man, ebay int/pipes, rfl bov, xtd 6 puck, 3" magnaflow, msd timing box,
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#3
11-04-2005, 10:12 PM
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Re: bent a valve
what you do next all depends on how much damage was done. Have you torn into it to take a look?
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#5
11-05-2005, 08:13 PM
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Re: bent a valve
Ive got a 1g head in my room only thing thats missing is one cam gear. It has never been run since it was at the local shop. It was checked and cleaned and has new valve seals. If your interested email me at [email protected] It will be on Ebay in a couple of weeks. I do have pics if you email me or I can post them here
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My first car! blue 93 plymouth laser 5 speed <Wrecked!> My second car! red 93 mitsubishi eclipse 5 speed 3rd car (soon to be) Golf tdi 03 or 04 havent found one yet
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#6
11-06-2005, 12:43 PM
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Re: Re: bent a valve
Quote:
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#7
11-06-2005, 01:03 PM
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Re: bent a valve
How did you bend a valve and NOT damage the head of the piston?
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#8
11-06-2005, 04:11 PM
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Re: Re: bent a valve
Quote:
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#9
11-06-2005, 05:23 PM
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Re: bent a valve
the 1g has much larger intake ports (it's like 50% bigger) i'm not sure what other differences there are, but use a 1g intake manifold too cause it has bigger runners than the 2g.
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95 GSX:FMIC, 6-bolt, evo 3 16g, 2600 act clutch, 1g bov (crushed), and a 3" turbo back exhaust, dsmlink, dks 272 cams, wideband 02, Coming soon 2.3L Stroker, 1mm oversized valves, crower sprigs. 91 TSI AWD auto, gm 3.5 maf, maft, fmic, emanage, profec e-01, 3" turbo bk exhaust +more little stuff. http://www.ratemydsm.com/member/ez1286/?member=ez1286  
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#10
11-06-2005, 09:41 PM
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Re: bent a valve
The number of bent valves I've seen over the years is staggering, but I have yet to see one piston damaged by it. I have heard of it happening, but its only when the valve actually breaks off. The stem is weak, so the piston just folds it over a bit. If there is a little ding or mark on the piston top, it won't hurt anything. People make tons of power reliably on pistons like this.
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Kevin Jewer RWD Talon - 7.92 at 180 Mightymax - 10.7 at 125
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#11
11-13-2005, 11:33 AM
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Re: bent a valve
Here is a pic of the top pf the head
 Here is a pic of the bottom of the head  It was surfaced, cleaned, and checked. It got new valve seals and each valve was checked and they are all good. As you can see the head is completely assembled with the exception of the one cam gear. It makes a big difference to the appeal of your engine when the head looks this clean! It came off of a 6 bolt although it will fit any 4g63.
__________________
My first car! blue 93 plymouth laser 5 speed <Wrecked!> My second car! red 93 mitsubishi eclipse 5 speed 3rd car (soon to be) Golf tdi 03 or 04 havent found one yet
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