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ARP

ARP SB Chevy 12pt Balancer Bolt Kit

MPN: 234-2501 Catalog #: 00909723 Category: Hardware Kits - Other Check Vehicle Fitment

Product Details

Harmonic Balancer Bolt - 7/16-20 in Thread - 2.470 in Long - 13/16 in 12 Point Head - Washer Included - Chromoly - Black Oxide - Small Block Chevy - Each

ARP SB Chevy 12pt Balancer Bolt Kit

As the crankshaft flexes and twists, the balancer absorbs incredible amounts of kinetic energy. To ensure that the balancer is locked in position, ARP has developed these ultra strong 200, 000 psi bolts that let you exert maximum clamping force. Special features include 1/4? thick, wide area washer and an extra tall 12-point head that accepts a deep socket and eliminates the worry of stripping the head.

Now you can use premium quality ARP stainless steel or chrome moly fasteners to install most anything on a car, boat or trailer. The specially alloyed “ARP 300” stainless steel and heat-treated 8740 chrome moly bolts (black oxide finish) are nominally rated at 180, 000 psi tensile strength to provide a substantial extra margin of safety over Grade 8 hardware. What’s more, you can’t beat the gorgeous looks of ARP’s specially polished stainless steel fasteners, and their ability to resist rust. They’re truly maintenance free!

Harmonic Balancer Bolt - 7/16-20 in Thread - 2.470 in Long - 13/16 in 12 Point Head - Chromoly - Black Oxide - Small Block Chevy - Each

Vehicle Fitment

Universal or product-specific fitment. Please review the product details and contact us if you need help confirming fitment before ordering.

Engine Compatibility

GM - SBCMatched variant: SB Chevy

Small Block Chevy; 265–400ci

Fitment note: Engine compatibility is provided as a guide. Please verify all fitment details before ordering.

Product Specs

Brand
ARP
Part Number
234-2501
Catalog Number
00909723
Product Line
Harmonic Damper Bolts
Category
Engines & Parts
Type
Hardware Kits - Other
UPC / Barcode
672036008802
Vendor Product Category
Engine Components
Vendor Product Subcategory
Hardware Kits - Other
Length
9.50 in
Width
5.75 in
Height
1.50 in
Weight
0.60 lb
Units Per SKU
1
Freight / LTL
No
Ship Alone
No
Air Restricted
No
Hazmat
No
Chemical
No
Prop 65
Y
CARB Approved
Yes
Clearance Item
No
Non-Returnable
No
Case Quantity
1
Kit
No

Shipping & Availability

Current status 62 Available - Ready to ship
Estimated timing Usually ships within 24hrs

This item is showing available inventory. Most in-stock performance parts ship quickly, but timing can vary by warehouse, vendor cut-off time, holidays, and carrier pickup.

PROP 65 WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Inventory shown: 62 available as of 6/3/2026.

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