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shorter timing chain #2871174
01/08/21 03:51 PM
01/08/21 03:51 PM
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sonny54 Offline OP
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I believe that I have a line bored block causing the problem of a too long timing chain. I know they make chains for this application .Can anybody tell me a supplier and even a part # If possible? This would be for a 1969 340 with a double roller. This site is fantastic for info. and help. Thanking you all in advance.

Re: shorter timing chain [Re: sonny54] #2871283
01/08/21 07:04 PM
01/08/21 07:04 PM
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spk2go Offline
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Cloyes makes a 5 and 10 thousands Gear 9-3603X9-5 Gear 9-3603X9-10

Re: shorter timing chain [Re: sonny54] #2871312
01/08/21 07:41 PM
01/08/21 07:41 PM
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ek3 Offline
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Originally Posted by sonny54
I believe that I have a line bored block causing the problem of a too long timing chain. I know they make chains for this application .Can anybody tell me a supplier and even a part # If possible? This would be for a 1969 340 with a double roller. This site is fantastic for info. and help. Thanking you all in advance.
saw your other post... tried to say this.. correct part iagree

Re: shorter timing chain [Re: ek3] #2871320
01/08/21 07:56 PM
01/08/21 07:56 PM
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Stanton Offline
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Rollmaster - and they tell you how to determine which size you need. Also, FWIW, the chain length does not change - they actually make the sprocket a tad larger. That way, you can easily swap the chain should it ever need replacement

Re: shorter timing chain [Re: Stanton] #2871373
01/08/21 09:40 PM
01/08/21 09:40 PM
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fredericksburg,va
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cudaman1969 Offline
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Originally Posted by Stanton
Rollmaster - and they tell you how to determine which size you need. Also, FWIW, the chain length does not change - they actually make the sprocket a tad larger. That way, you can easily swap the chain should it ever need replacement

That is good to know, I have 2 Hemi blocks that’s gonna need a line hone.

Re: shorter timing chain [Re: Stanton] #2871713
01/09/21 03:45 PM
01/09/21 03:45 PM
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ek3 Offline
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Originally Posted by Stanton
Rollmaster - and they tell you how to determine which size you need. Also, FWIW, the chain length does not change - they actually make the sprocket a tad larger. That way, you can easily swap the chain should it ever need replacement
i always thought it was the chain that was - .005 " i think they come in .002 -.0010 " shorter chains.. we would always measure and then order the correct chain ..?

Re: shorter timing chain [Re: ek3] #2871769
01/09/21 05:10 PM
01/09/21 05:10 PM
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Stanton Offline
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Quote
i always thought it was the chain that was - .005 " i think they come in .002 -.0010 " shorter chains.. we would always measure and then order the correct chain ..?


Ok, then think about it ... you have what, maybe 50 links in the chain and you want to make that chain .005" shorter. So each link has to be made roughly .0002" shorter. Or you can just make the sprocket bigger !!

Re: shorter timing chain [Re: Stanton] #2871775
01/09/21 05:28 PM
01/09/21 05:28 PM
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ek3 Offline
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Originally Posted by Stanton
Quote
i always thought it was the chain that was - .005 " i think they come in .002 -.0010 " shorter chains.. we would always measure and then order the correct chain ..?


Ok, then think about it ... you have what, maybe 50 links in the chain and you want to make that chain .005" shorter. So each link has to be made roughly .0002" shorter. Or you can just make the sprocket bigger !!
COMES WITH .005 SHORTER CHAIN --- https://billmitchellproducts.com/pr...sprocket-005-chain-click-here-more-info/

Re: shorter timing chain [Re: Stanton] #2871799
01/09/21 06:23 PM
01/09/21 06:23 PM
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moparmike1 Offline
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Originally Posted by Stanton
Quote
i always thought it was the chain that was - .005 " i think they come in .002 -.0010 " shorter chains.. we would always measure and then order the correct chain ..?


Ok, then think about it ... you have what, maybe 50 links in the chain and you want to make that chain .005" shorter. So each link has to be made roughly .0002" shorter. Or you can just make the sprocket bigger !!


Or, maybe, the master link is manufactured in standard length and reduced lengths?

Mike.

Re: shorter timing chain [Re: moparmike1] #2871814
01/09/21 06:57 PM
01/09/21 06:57 PM
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Alberta
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440_Offroader Offline
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Wouldn't a different length master link ride on the gear incorrectly? I would think all the chain links would have to match the tooth pitch on the gears.

Re: shorter timing chain [Re: ek3] #2871816
01/09/21 07:01 PM
01/09/21 07:01 PM
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elmor353 Offline
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I read that ad and it doesn't say what they do to shorten it. I'm leaning towards the master link being different sizes, because it makes no sense to make the chain itself smaller.

Re: shorter timing chain [Re: elmor353] #2871829
01/09/21 07:33 PM
01/09/21 07:33 PM
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Pacnorthcuda Offline
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Originally Posted by elmor353
I read that ad and it doesn't say what they do to shorten it. I'm leaning towards the master link being different sizes, because it makes no sense to make the chain itself smaller.


But wouldn’t that result in erratic cam timing?

Re: shorter timing chain [Re: Pacnorthcuda] #2871854
01/09/21 08:59 PM
01/09/21 08:59 PM
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Stanton Offline
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Ok, enough of this BS ...


Straight from the Rollmaster tech page:

When you machine the engines main bearing tunnel the distance between the camshaft and the crankshafr can become closer causing a standard timing set to fit with slack in the chain. Rollmaster solves this problem by manufacturing sprockets slightly larger in thou increments. Yadda, yadda, yadda .

Re: shorter timing chain [Re: Stanton] #2871888
01/09/21 10:19 PM
01/09/21 10:19 PM
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MYRTLE BEACH SOUTH CAROLINA
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ek3 Offline
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Originally Posted by Stanton
Quote
i always thought it was the chain that was - .005 " i think they come in .002 -.0010 " shorter chains.. we would always measure and then order the correct chain ..?


Ok, then think about it ... you have what, maybe 50 links in the chain and you want to make that chain .005" shorter. So each link has to be made roughly .0002" shorter. Or you can just make the sprocket bigger !!
---gotcha on the gears! ---advertisements show shorter chains .. i know, so much for repeating bad info.. the op would understand it ... i am curious in your example of if the chain needs to be .005" shorter though. its the [ CENTER ] distance that is .005" shorter. the chain length should be completely different as it is on 2 different radius x lengths .. rite?

Last edited by ek3; 01/09/21 10:53 PM.
Re: shorter timing chain [Re: ek3] #2871896
01/09/21 10:35 PM
01/09/21 10:35 PM
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Originally Posted by ek3
Originally Posted by Stanton
Quote
i always thought it was the chain that was - .005 " i think they come in .002 -.0010 " shorter chains.. we would always measure and then order the correct chain ..?


Ok, then think about it ... you have what, maybe 50 links in the chain and you want to make that chain .005" shorter. So each link has to be made roughly .0002" shorter. Or you can just make the sprocket bigger !!
---gotcha on the gears! ---advertisements show shorter chains .. i know, so much for repeating bad info.. the op would understand it ... i am curious about the chain needs to be .005" shorter though. its the [ CENTER ] distance that is .005" shorter. the chain length should be completely different as it is on 2 different radius x lengths .. rite?


No. Read what is posted. Nothing to to do with the chain. Gear is compensated to the height change the pitch stays the same. Now you should of before and surely need to now DEGREE THE CAM.The wheel has already been invented.

Re: shorter timing chain [Re: NITROUSN] #2871905
01/09/21 10:54 PM
01/09/21 10:54 PM
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Bend,OR USA
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Cab_Burge Offline
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Cloyes sells shorter chains, .005 and .010 according to Summits site for BB Mopar 3 bolt timing sets scope


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Re: shorter timing chain [Re: NITROUSN] #2871910
01/09/21 11:03 PM
01/09/21 11:03 PM
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ek3 Offline
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Originally Posted by NITROUSN
Originally Posted by ek3
Originally Posted by Stanton
Quote
i always thought it was the chain that was - .005 " i think they come in .002 -.0010 " shorter chains.. we would always measure and then order the correct chain ..?


Ok, then think about it ... you have what, maybe 50 links in the chain and you want to make that chain .005" shorter. So each link has to be made roughly .0002" shorter. Or you can just make the sprocket bigger !!
---gotcha on the gears! ---advertisements show shorter chains .. i know, so much for repeating bad info.. the op would understand it ... i am curious about the chain needs to be .005" shorter though. its the [ CENTER ] distance that is .005" shorter. the chain length should be completely different as it is on 2 different radius x lengths .. rite?


No. Read what is posted. Nothing to to do with the chain. Gear is compensated to the height change the pitch stays the same. Now you should of before and surely need to now DEGREE THE CAM.The wheel has already been invented.
no? was referencing the math for a shorter chain.................read my post. i said i got the gear deal.... was talking about the math for a shorter chain by .005" --by 50 links.. .005 is c-c measurement.. chain length is around it...thats all







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