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-   -   [Z06] Bucking the trend -WCCH Stage 2 heads with OEM exhaust valves (https://www.corvetteforum.com/forums/c6-corvette-zr1-and-z06/3214981-bucking-the-trend-wcch-stage-2-heads-with-oem-exhaust-valves.html)

FNBADAZ06 02-10-2013 01:20 PM


Originally Posted by PatriotZ (Post 1583084480)
You're way too kind.....anyway you have a fine ride and a super fast one at that..give me a heads up on your next visit down here....I'll buy ya lunch:flag:

Me, Twinger01, SLAMMER, and Hunter are heading to Inde Motorsport Ranch 2/16/2013 for another private HPDE...if you're interested in going out to watch :thumbs:

PatriotZ 02-11-2013 10:16 AM

Sounds good Vic....I am recovering from a broken toe, and still a tad gimpy......but I'll go and watch .... see ya there....:flag:

FNBADAZ06 02-11-2013 11:51 AM


Originally Posted by PatriotZ (Post 1583092407)
Sounds good Vic....I am recovering from a broken toe, and still a tad gimpy......but I'll go and watch .... see ya there....:flag:

I'll drop you a PM on the iteniary:thumbs:

PatriotZ 02-11-2013 12:22 PM

Cool:flag:

FNBADAZ06 02-19-2013 09:53 PM

Car should be back together and tuned by Monday, if all goes well.
Should be interesting, and I'll try to overlay some HP Tuner logs with the dyno pulls so you can see what the car is doing instead of just seeing static pics. I'm then hoping to make a March 8 TnT at Firebird, but I'll only get to run 1/8 mile pulls and one 1/4 pull before getting booted.

FYI.....our HPDE last weekend had some cool company share the track with us.
SRT brought out 3 pre-production GTS Viper's, testing and tuning their suspension, add-on aero, and tires. Neat car.

http://i1217.photobucket.com/albums/...psb625e07b.jpg

http://i1217.photobucket.com/albums/...ps6db9d992.jpg

http://i1217.photobucket.com/albums/...ps6d9cf74f.jpg

http://i1217.photobucket.com/albums/...ps33eec82f.jpg

jedblanks 02-19-2013 10:10 PM


Originally Posted by Sébast19X (Post 1583072486)
Ok I have found it on my book (Not Lingenfelter):
SA26
How to rebuilt a small block Chevrolet
Chapter 7 p.96
By: Larry Atherton & Larry Schreib

''Guide clearance can be checked with hole gauges and micrometer or by wobble method. Move the valves about 1/4 inch of their seats. Then wiggle it side to side. You should feel virtually no wobble. If you have a dial indicator, valve wobble should measure under 0.010 to 0.015 inch (that translate to about 0.003 inch or less guide clearance). Guide clearance greater than this will cause excess oil consumption and premature seat failure.''

Hope this help
Seb :canadaflag:

:willy: :willy:
:willy:
I've been asking about this. Other than the book, what's the basis for this calculation???

jedblanks 02-21-2013 04:07 PM


Originally Posted by jedblanks (Post 1583168795)
:willy: :willy:
:willy:
I've been asking about this. Other than the book, what's the basis for this calculation???

Bueller? Bueller? Bueller? Anyone? Anyone Raised or Lowered? Anyone?

FNBADAZ06 02-21-2013 06:19 PM

I don't have the answer, and I spoke with WCCH and they didn't perform a complete set of measurements on all the valves and guides before starting the work. The dial indicator wiggle was performed on cylinder 1, so hopefully the cylinder(s) they did check equate to the front cylinder valves.

FNBADAZ06 02-22-2013 06:38 PM

Well....the heads came in today, and I can clearly see where the bulk of all the CNC work went; the EXHAUST side :D

By sheer happenstance, my shop forgot to send my Katech spring kit to WCCH, so my heads came back dissassembled which gave me a chance to peer into the intake and exhaust ports before we installed the valves and springs.

Hopefully these pics can give you an idea :

THe duller areas in the ports in the pic's are untouched by the CNC milling bit, where the shiny areas are freshly milled and bare aluminum.

http://i1217.photobucket.com/albums/...ps217aba25.jpg

http://i1217.photobucket.com/albums/...ps65a86c30.jpg

http://i1217.photobucket.com/albums/...psda7a85e1.jpg

http://i1217.photobucket.com/albums/...ps74c21c86.jpg

http://i1217.photobucket.com/albums/...ps257315c3.jpg


FYI..... the grinding marks from the removal of the sharp edged casting flash didn't bother me :cheers:

FNBADAZ06 02-22-2013 06:43 PM

http://i1217.photobucket.com/albums/...ps1675ccab.jpg

http://i1217.photobucket.com/albums/...ps99000bbc.jpg

http://i1217.photobucket.com/albums/...psba44dfba.jpg

Jawnathin 02-22-2013 06:43 PM


Originally Posted by FNBADAZ06 (Post 1583184586)
I don't have the answer, and I spoke with WCCH and they didn't perform a complete set of measurements on all the valves and guides before starting the work. The dial indicator wiggle was performed on cylinder 1, so hopefully the cylinder(s) they did check equate to the front cylinder valves.

I spoke to WCCH about this earlier today. Unless requested in advance, they don't do the measurements of guide wear. This is because it takes some effort (and we know how busy they are) to get the heads setup for measurement and not everyone really cares.

Richard mentioned it was like 30 minutes for a set of heads and while it doesn't sound like much, keep in mind their back log of work.

I didn't realize this at the time I asked for it, but I do feel a little guilty burdening them with more work.

FNBADAZ06 02-22-2013 06:47 PM

Yep......it didn't bother me, but some on this board were interested in what my wear measurements were, given my heads/guides had considerably more miles on them than most here at 68K+ miles.

'06 Quicksilver Z06 02-22-2013 07:23 PM


Originally Posted by FNBADAZ06 (Post 1583193516)
Well....the heads came in today, and I can clearly see where the bulk of all the CNC work went; the EXHAUST side :D

By sheer happenstance, my shop forgot to send my Katech spring kit to WCCH, so my heads came back dissassembled which gave me a chance to peer into the intake and exhaust ports before we installed the valves and springs.

Hopefully these pics can give you an idea :

THe duller areas in the ports in the pic's are untouched by the CNC milling bit, where the shiny areas are freshly milled and bare aluminum.

http://i1217.photobucket.com/albums/...ps74c21c86.jpg

FYI..... the grinding marks from the removal of the sharp edged casting flash didn't bother me :cheers:

Yeah, yeah, yeah......that's all sounds good. All sounds good

Let me know when you start the bitching thread about the grinder marks, because these are indicative of the actual "workmanship" of the heads. Looks like they turned that midget loose with the grinder again. ::D

Before you ask; "Quick are you serious? Have you finally lost what was left of your mind?"

No I'm not, and no I haven't. :rofl:

Just kidding, making reference to, and poking fun at, a thread, and a couple of posters in that thread, which was started here awhile back over these grinder marks, and their trying to extrapolate that to quality of the work done on the actual business end of the heads.

Congrats on the new heads, and good luck with the build, FNBADAZ06, and go in knowing that the work you had done is top notch.:thumbs::cheers:

BTW, of all of your pictures, and all of them are great BTW, the following one might turn out to be just as significant as the rest, when or if you go to sell your car or should anyone look under the hood of it.


Originally Posted by FNBADAZ06 (Post 1583193569)


Jawnathin 02-22-2013 07:32 PM

Is the WCCH engraving visible when installed in the car?

PatriotZ 02-22-2013 07:34 PM

They look good Vic....congrats....:flag:

FNBADAZ06 02-22-2013 07:36 PM


Originally Posted by Jawnathin (Post 1583193973)
Is the WCCH engraving visible when installed in the car?

I don't think so.

FNBADAZ06 02-22-2013 07:38 PM


Originally Posted by PatriotZ (Post 1583193983)
They look good Vic....congrats....:flag:

Thanks, Rick.
I just went a bought 10 gallons of E85 for the tuning......3.34/gallon vs. 4.04/gallon for 91 .

'06 Quicksilver Z06 02-22-2013 07:42 PM


Originally Posted by Jawnathin (Post 1583193973)
Is the WCCH engraving visible when installed in the car?

The heads are interchangeable, either will work on either side, so it is your choice.

We chose to display mine proudly.

http://img.photobucket.com/albums/v3...3/8bfd6a40.jpg

http://img.photobucket.com/albums/v3...3/e10951b0.jpg

FNBADAZ06 02-22-2013 07:48 PM

:lol: not a bad idea, Quick.
If they haven't installed my heads yet, I might ask them to do the same thing.

'06 Quicksilver Z06 02-22-2013 08:04 PM


Originally Posted by FNBADAZ06 (Post 1583194078)
:lol: not a bad idea, Quick.
If they haven't installed my heads yet, I might ask them to do the same thing.


:thumbs::cheers: Glad to help.


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