Removed crank from my 454 - not surprised. - Team Camaro Tech
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post #1 of 12 (permalink) Old Sep 8th, 14, 09:53 PM Thread Starter
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John
 
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Removed crank from my 454 - not surprised.

Yup, take a look, this is a 454 I bought a year ago to eventually replace the 350 thats in it now. I finished rebuilding the 781 heads that came on it this spring, just had some time today in the garage. I just saw it and figured I'd have a look. Already a 10/10 crank. Bearings show a date of '93. Clevite 77s. Regular cast crank-nothing special.
Crank spun perfectly with ease in the block, some trash did get through at one time, oil pump showed that also. Some very light scarring on the crank counterweights from where a pushrod came down through and got chewed up long ago. Just interesting to see.
Odd that the ends have less wear on them. Rearmost main thrust bearing surfaces look untouched.






- John
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'67 V8 Camaro - 12637, 797-Z (Parchment), M-M (Royal Plum), 2M, 3K, 5Y
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post #2 of 12 (permalink) Old Sep 8th, 14, 09:58 PM
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Edy
 
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Re: Removed crank from my 454 - not surprised.

It is repair/replaceable.

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Check out the
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post #3 of 12 (permalink) Old Sep 9th, 14, 05:21 AM
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Re: Removed crank from my 454 - not surprised.

To me, wear pattern on the bearing looks even in the centers, no scrapes or gouges but stands out compared front to rear..
Wearing in the center makes me think the crank journals may be too tight or needs line boring? Journal does look rough.
Being a cast crank, I would have to look at and mic the journals and compare. Just wonder what a polish job would do.
Take it to a crank shop and get them to mic and polish if necessary. Select main bearings that have correct clearance.
Might be able to re-bearing and put back together. Wonder what rod bearings look like.

Don
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Zdld17:69 Z/RS,306, NOR141111, 9N554XXX, 12A, X3G, 59/59,723, AFR 195,CCC282/290HR, TKO 600, BU1122B1E Owner since Dec 1968

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post #4 of 12 (permalink) Old Sep 9th, 14, 06:56 AM
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Re: Removed crank from my 454 - not surprised.

Line hone the block and drop in a used ZZ502 forged steel crank. There are a lot offered by owners of the 502 who want to move up to a 540 or bigger motor (it is a disease of never being satisfied with what have; always wanting the bigger, bader motor on the other side of the trailer from where you parked yours).

Of course that leaves you with only a 454, but it is still a good start to bigger and bigger motors.

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post #5 of 12 (permalink) Old Sep 9th, 14, 07:12 AM
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Re: Removed crank from my 454 - not surprised.

Ah, the disease , forgot about that. Its contagious.

Don
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Zdld17:69 Z/RS,306, NOR141111, 9N554XXX, 12A, X3G, 59/59,723, AFR 195,CCC282/290HR, TKO 600, BU1122B1E Owner since Dec 1968

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post #6 of 12 (permalink) Old Sep 9th, 14, 09:21 PM Thread Starter
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Re: Removed crank from my 454 - not surprised.

Quote:
Originally Posted by zdld17 View Post
Wonder what rod bearings look like.
Well, since you asked...
Including what I found in bottom of oil pan. Whats funny is, I pulled 16 pushrods out when I tore the top off of it.









Crank is going to the metal recycling center in next couple of days. All 64 lbs of it and the pistons too. 496 kit slowly getting closer everyday.....

- John
Misfit tortured soul. Lone wolf. Unicorn.
'67 V8 Camaro - 12637, 797-Z (Parchment), M-M (Royal Plum), 2M, 3K, 5Y
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post #7 of 12 (permalink) Old Sep 9th, 14, 09:28 PM
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Re: Removed crank from my 454 - not surprised.

Quote:
Originally Posted by Arch Stanton View Post
Well, since you asked...
Including what I found in bottom of oil pan. Whats funny is, I pulled 16 pushrods out when I tore the top off of it.









Crank is going to the metal recycling center in next couple of days. All 64 lbs of it and the pistons too. 496 kit slowly getting closer everyday.....
Hello Stroker! You caught the disease like many others.

Don
TC # 349
Zdld17:69 Z/RS,306, NOR141111, 9N554XXX, 12A, X3G, 59/59,723, AFR 195,CCC282/290HR, TKO 600, BU1122B1E Owner since Dec 1968

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post #8 of 12 (permalink) Old Sep 10th, 14, 12:23 AM
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Re: Removed crank from my 454 - not surprised.

wow... impressive push rod there... Chomped up quite a bit on its way down. that is pretty cool, sucks, but still pretty cool. I lost a valve in my 468 a couple years back when my th400 decided it was tired of working right and while i was going through the traps the tranny let go and my BBC saw over 9k rpm. Turned my piston into what looked like a piece of art clay that a 5 year old was stabbing with a knife a billion times. Then the valve decided to lodge in the side of the #1 cylinder wall. Fun stuff.

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post #9 of 12 (permalink) Old Sep 10th, 14, 05:48 AM
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Re: Removed crank from my 454 - not surprised.

Since we are on the subject of engine pieces, I have one that I have carried with my for 30 years or so. Came out of my race sbc running H/Modified . When people see it , they ask what kind of motor was this.
My response was with a straight face, Is out of a canted valve small block. Looking at it someone may think the Pontiac 303 race motors but it starts the story of loosing the entire motor, high $$ flycut pistons on factory bottom end. Roller cam was even more interesting, came out in 3 pieces. But the piston smacked the valve back up into the head, salvaging the head . Fun thru the traps.
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Don
TC # 349
Zdld17:69 Z/RS,306, NOR141111, 9N554XXX, 12A, X3G, 59/59,723, AFR 195,CCC282/290HR, TKO 600, BU1122B1E Owner since Dec 1968

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post #10 of 12 (permalink) Old Sep 10th, 14, 10:14 AM
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Re: Removed crank from my 454 - not surprised.

OK,,,, my head hurts.

One owner 69 Camaro,(yep, bought it new
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post #11 of 12 (permalink) Old Sep 10th, 14, 07:33 PM Thread Starter
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Re: Removed crank from my 454 - not surprised.

I love carnage pics!


- John
Misfit tortured soul. Lone wolf. Unicorn.
'67 V8 Camaro - 12637, 797-Z (Parchment), M-M (Royal Plum), 2M, 3K, 5Y
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post #12 of 12 (permalink) Old Sep 10th, 14, 08:45 PM
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Re: Removed crank from my 454 - not surprised.

Quote:
Originally Posted by Arch Stanton View Post
I love carnage pics!

Looking at that valve, it tells me the piston fly cut was aimed directly at the intake port seat. Hurt the valve but did not hurt the head, just bent the stem and broke the bronze quide. Knocked the rocker are off . But something broke cast roller cam into. I suspect it was from the impact. Iron heads, replace seat and new billet cam ,roller, push rod etc. .

Don
TC # 349
Zdld17:69 Z/RS,306, NOR141111, 9N554XXX, 12A, X3G, 59/59,723, AFR 195,CCC282/290HR, TKO 600, BU1122B1E Owner since Dec 1968

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