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Undersized Timing Chains? #435218 08/11/09 08:47 PM 08/11/09 08:47 PM
Joined: Apr 2008 Posts: 97 Portland Oregon J JohnnyBeGood OP member
JohnnyBeGood OP member J Joined: Apr 2008 Posts: 97 Portland Oregon	What is the purpose of these-told that if you use after market caps and line bore and hone you have to use them! But line boring just brings things back to zero-right! Am I missing something here.

Re: Undersized Timing Chains? [Re: JohnnyBeGood] #435219 08/11/09 09:50 PM 08/11/09 09:50 PM
Joined: Jan 2003 Posts: 13,602 md M mopars4ever I Live Here
mopars4ever I Live Here M Joined: Jan 2003 Posts: 13,602 md	The block gets bored along with the caps. So the crank will be closer to the cam after it gets bored.

Re: Undersized Timing Chains? [Re: mopars4ever] #435220 08/11/09 10:04 PM 08/11/09 10:04 PM
Joined: Mar 2005 Posts: 1,373 Rancho Cucamonga, CA D_C pro stock
D_C pro stock Joined: Mar 2005 Posts: 1,373 Rancho Cucamonga, CA	Technically, if the machine shop does its job competently and compensating-thickness main journal bearings are manufactured/available, an undersized timing chain should not be required. That said, sometimes an undersized timing chain is the appropriate "fix." Check out this link and scroll down to the "Line Boring / Honing" section: http://www.speedomotive.com/t-about.aspx

Re: Undersized Timing Chains? [Re: D_C] #435221 08/12/09 12:08 AM 08/12/09 12:08 AM
Joined: Feb 2003 Posts: 10,220 Someplace you aren't S SomeCarGuy I Live Here
SomeCarGuy I Live Here S Joined: Feb 2003 Posts: 10,220 Someplace you aren't	I had a new set of caps installed on a 440 block and the regular Rollmaster chain would BARELY go on it was so tight! I want my fair share

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