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Since 1952

ARP Fasteners 235-2501 Big Block Chevy Balancer Bolt with Washer

SAME DAY SHIPPING! Order within the next 6 hours 50 minutes and receive same day shipping

Material Type:
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Wrench Type:
12 Point
Black Oxide
Thread Pitch:
MFG. Part #:
Garage Sale:
Under Head Length:
ARP Fasteners 235-2501 Big Block Chevy Balancer Bolt with Washer

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Q & A

What's in the Box

8740 Chromoly. Bolt feature increased diameter, 12 point head for improved accessibility and easy wrenching.  Hardened parallel ground washer prevents galling while promoting even torque loading. 170,000 PSI.

  • For B/B Chevy, use 13/16" 12 point socket
  • "Underhead" length is 1.550"
  • 1/2-20 Thread Size
  • Washer Included

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Product Q&A

1 questions : 1 answers

1 answers

is this bolt 1/2"x20 2 1/4"long for bb chevy

d martin
li new york
June 26, 2011

is this bolt 1/2"x20 2 1/4"long for bb chevy


June 27, 2011
This is for big block chevy and is 1/2-20 by 1.55" under head length
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ARP Fasteners 534-9501 Small Block Chevy Engine Fastener Kit
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It’s easy to assemble a show-quality engine when you use ARP’s handy Engine & Accessory Fastener Kit. Virtually everything you need comes completely organized in one convenient package. More importantly, each and every fastener is superior in strength to the OEM bolts, and also significantly better than hardware grades (even Grade 8).

Plus, these fasteners are made of a specially alloyed Stainless 300 material, which has the added benefit of being virtually impervious to rust and corrosion. The stainless steel is polished to achieve a brilliant luster, and provides a distinctive, maintenance-free environment. Each kit has a dozen different type fasteners, all neatly organized and labeled in protective vacuum-wrapped packages. 

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Fits 1955-1986 265-400 c.i. Small Block Chevy (1987 & newer EFI engines may require additional fasteners). 

Note: Some bolts may be too short if using aluminum oil pan or valve covers.

 101-5349501 Data (PDF)