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Registered
Join Date: Apr 2025
Location: SoCal
Posts: 17
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Belmetrics - Cross Reference Part Numbers?
Anyone cross references OEM Porsche part numbers with Belmetrics?
Just thought I'd ask, was about to try and figure out exhaust studs for a 3.2. I'm hoping someone here is going to dump info from an amazing spreadsheet they had saved 
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06-16-2025, 06:52 AM
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Registered
Join Date: May 2005
Location: Houston
Posts: 5,466
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There is no cross-section between Belmetric and Porsche part numbers
For your 3.2, the studs are M8 (fastener diameter) x1.25 (thread pitch) x45mm (length) Regards, Yasin
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Ole Skool - wouldn't have it any other way |
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06-16-2025, 08:28 AM
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Join Date: Apr 2025
Location: SoCal
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Quote:
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06-16-2025, 10:26 AM
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Join Date: Apr 2012
Posts: 250
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Porsche studs follow the DIN 835 standard. I believe this is the one you'll want...
https://belmetric.com/m8-double-ended-stud-din-835-class-8-8-steel-m8/?sku=S8X46DYLW 
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Ward Komers 1984 944 Track Car - Sold 1968 912 Rust Bucket - Under Repair 1971 911T - Under Repair |
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06-16-2025, 12:51 PM
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Use the PET to confirm the sizing -> then look that up on BelMetric: https://www.dropbox.com/scl/fi/9y6qu8xkb8xk6jp7w7545/911-pet-84-86.pdf?rlkey=myworxnctkejn34kol8f5mduy&st=vstdgvxm&dl=0 (start with page 149 of the PDF / illustration 202-05)
PET shows M8 x 40.
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1978 911 SC (3.2SS, EFI, 993SS cams + the trimmings) Dynamic CR calculator: https://dcr.questionable.services/ |
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06-16-2025, 03:47 PM
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Val
