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1968RR
Addicted To Super Stock


Reged: Nov 10 2005
Loc: San Angelo, Texas, U.S.A.
School me on undersized timing chains
      #5616671 - Fri Nov 20 2009 01:43 PM

I recently bought a 0.005" undersized timing chain, and I'm wondering - is each link 0.005" shorter or is the entire chain 0.005" shorter?
Thanks in advance for any help.

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Proud owner of what is easily West Texas' 8th fastest 440-powered, Pontiac-blue, 1968 Roadrunner with a cracked dash [fixed!] and a hole where the radio should be [also recently fixed!]


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Captain Budget!
Not Cheap!! Just Thrifty!!


Reged: Jan 30 2003
Loc: In Cognito
Re: School me on undersized timing chains [Re: 1968RR]
      #5616698 - Fri Nov 20 2009 01:55 PM

The crank centerline to cam centerline distance is supposed to be .005" shorter.

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9/3 - Check the Race Parts For Sale and Big Block Parts For Sale sections here on Moparts.com for my latest offerings! 8^)


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pishta
mopar


Reged: Jun 21 2004
Loc: Tustin, CA
Re: School me on undersized timing chains [Re: Captain Budget!]
      #5616818 - Fri Nov 20 2009 03:11 PM

The lower hub is larger for an undersized chain. So if you were to measure edge to edge from top of upper to bottom of lower of stocker, they would be the same distance on the undersized chain.

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02 T&C
96 Breeze
65 Barracuda "S"


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rbstroker
super stock


Reged: Sep 24 2006
Loc: USA
Re: School me on undersized timing chains [Re: 1968RR]
      #5616915 - Fri Nov 20 2009 03:59 PM

My big block was line bored. Two new timing sets each gave me 1/2" slop in the chain at the middle of the slack side. I got a .005" shorter setup from 440 source last week. Perfect now.

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PATRIOTS SUPPORT THE USA NOT ASIA
THANK A VET and BUY AMERICAN!
Before it is too late.


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