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post #1 of 19 (permalink) Old 08-13-2010, 04:34 PM Thread Starter
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cobra crank

ok this didnt sell on ebay, so I still have it. if your interested let me know. im putting it up for sale on a few messageboards.

$200 plus shipping or pickup in Plainfield il (Joliet il) or can deliver to nmca Michigan or stlouis races.


you can contact me here... [email protected]








[/QUOTE]

CMP Drag Racing
best ET: 12.410 -- best MPH: 107.61
NMRA MM7270 -- NMCA EFI/? ????
Thank you to the CMP Drag Racing team: Tony, Doug, Maryann, Dale, Paul and Chris.


Last edited by VicRattlehead; 08-23-2010 at 02:36 PM.
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post #2 of 19 (permalink) Old 08-13-2010, 04:38 PM
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you might wanna double check that info.....all cobra cranks are 8-bolt (even though the converse is not always true), and there is a forging-line of sorts (not sure what it would be called) that is about 1/4" wide that does all the way down the crank...that one seems to be around 1/8" like the cast cranks....and of course, it is missing the two center counter-weights for what is supposed to be 8 counterweights, not six
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post #3 of 19 (permalink) Old 08-13-2010, 06:44 PM
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Looking close at the pics, the "casting flash" in pic 2 looks just like that: casting flash.

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post #4 of 19 (permalink) Old 08-13-2010, 08:01 PM Thread Starter
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thanks for the info, ill pull the auction on monday when i get back in to work. i also thought all cobras had 8 bolts too. but i was told, this came out of this cobra they just built. who knows what they did to it before we got it.

CMP Drag Racing
best ET: 12.410 -- best MPH: 107.61
NMRA MM7270 -- NMCA EFI/? ????
Thank you to the CMP Drag Racing team: Tony, Doug, Maryann, Dale, Paul and Chris.

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post #5 of 19 (permalink) Old 08-13-2010, 08:06 PM
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Can you edit it instead of just yanking it? I mean...it's still an undamaged crank that somebody might want, right?

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post #6 of 19 (permalink) Old 08-13-2010, 08:11 PM Thread Starter
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i can edit it yea.

CMP Drag Racing
best ET: 12.410 -- best MPH: 107.61
NMRA MM7270 -- NMCA EFI/? ????
Thank you to the CMP Drag Racing team: Tony, Doug, Maryann, Dale, Paul and Chris.

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post #7 of 19 (permalink) Old 08-16-2010, 09:35 AM Thread Starter
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ok, what it appears is they gave me the wrong crank and i didnt pay attention to it when I took the pictures. So the pictures showed a cast gt crank. Iv got the cobra crank in the laythe polishing it now. Will take pics of it and make the changes in the ebay ad in just a few minutes. The description is still accurate.

CMP Drag Racing
best ET: 12.410 -- best MPH: 107.61
NMRA MM7270 -- NMCA EFI/? ????
Thank you to the CMP Drag Racing team: Tony, Doug, Maryann, Dale, Paul and Chris.

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post #8 of 19 (permalink) Old 08-16-2010, 06:13 PM
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now that's a crank! hell of a starting price too......if I didn't already have two cobra cranks, i'd buy it lol
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post #9 of 19 (permalink) Old 08-16-2010, 08:04 PM Thread Starter
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we just wanna get rid of some of this stuff. ive got about 50 cranks sitting in the back. at least 2 dozen sets of pistons and about the same amount of heads. they arnt all modular, everything gm ford chrysler. need cams? ive got everything but 4.6 cams.

CMP Drag Racing
best ET: 12.410 -- best MPH: 107.61
NMRA MM7270 -- NMCA EFI/? ????
Thank you to the CMP Drag Racing team: Tony, Doug, Maryann, Dale, Paul and Chris.

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post #10 of 19 (permalink) Old 08-16-2010, 08:09 PM
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got any 348-409 stuff

Rob
2004 QSM Pontiac GTO 1 of 889 245,00 and counting
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post #11 of 19 (permalink) Old 08-16-2010, 08:13 PM Thread Starter
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Quote:
Originally Posted by rmfk13 View Post
got any 348-409 stuff
what exactly are you looking for? i can look. there so much crap in the back it might take a few days to get back to you but shoot me a pm with what your looking for.

Keith
PER-Race-Engines.com

CMP Drag Racing
best ET: 12.410 -- best MPH: 107.61
NMRA MM7270 -- NMCA EFI/? ????
Thank you to the CMP Drag Racing team: Tony, Doug, Maryann, Dale, Paul and Chris.

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post #12 of 19 (permalink) Old 08-20-2010, 08:55 AM Thread Starter
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this ends today.

CMP Drag Racing
best ET: 12.410 -- best MPH: 107.61
NMRA MM7270 -- NMCA EFI/? ????
Thank you to the CMP Drag Racing team: Tony, Doug, Maryann, Dale, Paul and Chris.

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post #13 of 19 (permalink) Old 08-23-2010, 02:34 PM Thread Starter
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ok this didnt sell on ebay, so I still have it. if your interested let me know. im putting it up for sale on a few messageboards.

$200 plus shipping or pickup in Plainfield il (Joliet il) or can deliver to nmca Michigan or stlouis races.

large pics are in the first post.

CMP Drag Racing
best ET: 12.410 -- best MPH: 107.61
NMRA MM7270 -- NMCA EFI/? ????
Thank you to the CMP Drag Racing team: Tony, Doug, Maryann, Dale, Paul and Chris.

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post #14 of 19 (permalink) Old 08-23-2010, 10:04 PM
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Quote:
Originally Posted by guitar maestro View Post
you might wanna double check that info.....all cobra cranks are 8-bolt (even though the converse is not always true), and there is a forging-line of sorts (not sure what it would be called) that is about 1/4" wide that does all the way down the crank...that one seems to be around 1/8" like the cast cranks....and of course, it is missing the two center counter-weights for what is supposed to be 8 counterweights, not six
GM, I believe the cast crank has the wide forging line and the forged crank has the thin line.

Therefore, the cast crank has the wider 1/4" line, the forged Cobra has the 1/8".

The forged cranks also have center counter weights while the cast cranks do not. Here is a picture of forged on the left vs a cast on the right:


Forged On Left, Cast On Right

Based on the OP's pics, his looks forged...

~Rick

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post #15 of 19 (permalink) Old 08-23-2010, 10:08 PM Thread Starter
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Quote:
Originally Posted by NetKeym View Post
GM, I believe the cast crank has the wide forging line and the forged crank has the thin line.

Therefore, the cast crank has the wider 1/4" line, the forged Cobra has the 1/8".

The forged cranks also have center counter weights while the cast cranks do not. Here is a picture of forged on the left vs a cast on the right:


Forged On Left, Cast On Right

Based on the OP's pics, his looks forged...
we had an issue with the pics on ebay at first. thing were corrected after GM's post.

CMP Drag Racing
best ET: 12.410 -- best MPH: 107.61
NMRA MM7270 -- NMCA EFI/? ????
Thank you to the CMP Drag Racing team: Tony, Doug, Maryann, Dale, Paul and Chris.

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post #16 of 19 (permalink) Old 08-23-2010, 10:10 PM
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Quote:
Originally Posted by VicRattlehead View Post
we had an issue with the pics on ebay at first. thing were corrected after GM's post.
Oh, figures. I'm usually a day late and a dollar short..... lol

~Rick

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post #17 of 19 (permalink) Old 08-24-2010, 04:27 PM
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Vic cleared it up and updated the thread....GM's first reply and mine no longer apply.

Quote:
Originally Posted by NetKeym View Post
GM, I believe the cast crank has the wide forging line and the forged crank has the thin line.....Therefore, the cast crank has the wider 1/4" line, the forged Cobra has the 1/8".
You must be thinking the reverse. Pic 5 clearly shows the forging lines on the throws:
Quote:
Originally Posted by VicRattlehead View Post
A cast crank will have the thin lines....because it's actually casting flash.

Another neat ID trick if the crank is out by itself: hang it up by wire through one of the flexplate/flywheel bolt holes and lightly tap it with a hammer. A forged crank will ring out like a bell. The cast crank goes "clunk".

Free bump for Vic, and some info.

/messing up someone's FS thread.

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post #18 of 19 (permalink) Old 08-24-2010, 05:06 PM
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Ringing

I have noticed the ring trick, not on 4.6 cranks, but chevy SB cranks...

Good observation, 94 Bird!

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post #19 of 19 (permalink) Old 09-07-2010, 04:31 PM Thread Starter
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sold

CMP Drag Racing
best ET: 12.410 -- best MPH: 107.61
NMRA MM7270 -- NMCA EFI/? ????
Thank you to the CMP Drag Racing team: Tony, Doug, Maryann, Dale, Paul and Chris.

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