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Old 02-28-2003, 07:21 PM
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Post Holley Metering Blocks

I've been to a couple of the Holley sites noted in previous threads, but I still can't find specific information about the Holley metering blocks. Does the block numbering system have any significance? If so, is there a Holley (or other source) that explains the numbers?

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Old 02-28-2003, 07:37 PM
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The proper metering block(s) will be listed in the following chart if this is what you are asking-

-Holley Carburetor Numerical Listings-
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Old 02-28-2003, 08:09 PM
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Question

If you are asking about secondary metering plates on a 4160 (used instaed of jets), yes the code does mean something.

-HOLLEY Carburetor Parts And Accessories-

Scroll down to Application Chart For Secondary Metering Plates...

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Old 03-08-2003, 11:24 AM
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Question

MI2600 Member # 3291 posted March 01, 2003 12:25 PM

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I appreciate your help. That site was informative. I've picked up various metering blocks during my travels and I was trying to figure out what carbs they might fit. I couldn't find my numbers in the listing. Most of my blocks have a four digit number stamped on the top edge which didn't correlate to any List# or block number. Do you know what those #s are? I noticed a lot of the carbs listed on that site had NS or NR in the block column, which didn't make any sense to me. Some of my blocks only have an "8A" or "8B" cast on the block. Does that make any sense?


KULTULZ Member # 424 posted March 01, 2003 02:16 PM

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I understand what you are saying now...sorry. You have a very interesting question. I too have had old parts laying around and wondering what they would fit. Usually, there are two sets of numbers a manufacturer uses....assembly(design) and service (parts). Those stamped nos. must have some meaning but most likely only to HOLLEY so that they can be identified for assembly/service.
Usually, NS means no longer serviced and NR means not replaced. I don't know for a fact if this applies to HOLLEY. HOLLEY offers advanced repair literature and I don't know if the I.D. nos. will be listed there are not.

<a href="http://www.holley.com/HiOctn/Sales/ServCntr/Litrtr/SrvLtrtr.html" target="_blank">-HOLLEY Service Literature-</a>

I am going to call HOLLEY Monday and try to find out as you have my curiousity up now. I will PM you when I find the answer.

Gary


KULTULZ Member # 424 posted March 04, 2003 12:53 PM

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I just spoke with a HOLLEY tech and he said there is no sure way of crossing the stamping numbers over to current service numbers.

Gary
_____________________________________________

Does anyone here know of a way to cross reference older HOLLEY part/stamping numbers?
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