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Old 02-15-2022, 12:25 PM
PamRichardson PamRichardson is offline
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Join Date: May 2006
Location: Rockville, MD
Posts: 863
Default Status of Full Prep Engines

Thought I would pass this along to everyone. I sent a letter to the CRB/ASAC in 9/21 and got the answer back in 1/22 about engine blocks, and my suggestion of aftermarket blocks was rejected. But, IMHO, the situation has gotten worse. So, I have been in touch with every leadership avenue I can think of to alert them to the problems in the hopes that something can be done in 2022. Most of my research has been on the GM engines (SBC), but, I have talked to a number of Ford colleagues and the situation is not much better with Ford. Ford drivers chime in!

1. Blocks -- For at least a year and a half there have been no SBC blocks of any type (part of a 604 engine, for the street, or bowtie). As far as I know, GM stopped using them in cars in 1977, so it makes getting a used block VERY problematic. They are getting very scarce, and often come with a crack or two. GM often contracted with Dart or World Products to make GM blocks. As far as I can tell, GM is backing away from the SBC for business reasons and sending the SBC market to the aftermarket. At the Runoffs, the GM rep could not indicate when they might start producing the blocks again. My guess is never.

2. The just posted GM heads that the CRB/ASAC wants regional racers to test are not available. Probably the same process as #1. One of them has a new part number (not listed in the GCR), and that part number is not available. As you all know, the Edelbrock "SCCA American Sedan " head has not been available for several years. And I'm guessing that the old stock GM cast iron heads are relegated to junkyards now as well.

Bottom line: No 604s, no OEM blocks, no OEM heads, no Edelbrock heads. No one can build a new (to them) full prep engine, unless they get really lucky and find something after a long, dedicated search.

I highly recommend and support adding Dart and Word Products blocks to our rules. I have heard Edelbrock wants to talk, I encourage that as well, or other aftermarket head manufacturers.

If you agree, I recommend sending a letter of support for these changes to the CRB/ASAC.

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