Help is just a click away!
Click here to chat with a Speedway Team Member
💬
Online - Chat with us!
Chat
Products to Compare (max of 3)
X
Compare These Parts
Talk to the Experts. Call 800.979.0122, 7am-10pm, everyday.
Customer Service
Since 1952
in
in
Talk to the Experts. Call 800.979.0122
Shop By
Support
Account
Street Race Truck More... The Toolbox
Add to Cart
$79.99
Pro Race 21262 Pro/Street 6.1 Inch SBC Harmonic Balancer,Internal
Pro Race 21262 Pro/Street 6.1 Inch SBC Harmonic Balancer,Internal

Pro Race 21262 Pro/Street 6.1 Inch SBC Harmonic Balancer,Internal

Chevy Small Block V8, 6.1" Outside Diameter, 1.246" Inside Diameter, 4.6 lbs. Weight

1 Review | 1 Answered Question
In Stock
Can Ship FREE
Select your vehicle to verify fitment.
Select Vehicle
Pro Race 21262 Pro/Street 6.1 Inch SBC Harmonic Balancer,Internal
Pro Race 21262 Pro/Street 6.1 Inch SBC Harmonic Balancer,Internal
X
Zoomed In Image
Part # 91021262
$79.99
each
Quantity:
Add to Cart
Call to Order
Add to Buildlist
Compare
Details
Reviews
Q&A
Videos & Articles

Important Messages:

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.

Details

MFG. Part #:
21262
Outside Diameter:
6.1"
Inside Diameter:
1.246"
SFI Rating:
Not SFI-approved
Weight:
4.6 lbs.
Engine Balance:
Internal
Degree Markings:
Yes

Info

These Pro/Street SBC harmonic dampers by Pro Race Performance Products have been machined to tolerances far exceeding those used by OEM’s. Dampers are lightweight, weighing 4.6 pounds.  These dampers feature an amazing overall surface finish. Permanent rolled-in timing marks are very visible and will never fade or become less visible! Internally balanced. Sold each.

  • Pro/Street 21262 Harmonic Damper
  • 6.10" outside diameter
  • 4.6 pounds
  • Internally balanced
  • For 283-350 Small Block Chevy

Notes

About Nodular Iron

Nodular Iron, also referred to as ductile iron, is typically the material used for heavy duty or racing applications of cast iron products. It is approximately 30% stronger than gray iron. So it was only natural that when PRO/RACE developed the heavy duty OE replacement PRO/STREET dampers, high strength nodular iron was the material of choice.

 

While PRO/STREET dampers are not intended for racing, the fact that they are cast of nodular iron, as opposed to ordinary gray iron, means that they are suitable for higher
rpms than most competitive models. (Note: The PRO/STREET Nodular Iron Harmonic Dampers are NOT SFI certified). However to prove the integrity of the PRO/STREET dampers, we had the SFI test lab run some spin tests. The PRO/STREET damper was subjected to 8,000rpm for one hour, and then 12,500 rpm for 15 minutes with no sign of degradation! (note: this by no means suggests the PRO/STREET damper should be used in extreme applications – use PRO/RACE or PRO/SPORT for high performance applications).

Features

• “Nodular Iron Construction – Most cast dampers are manufactured from gray iron castings. Nodular iron is over 30% stronger than gray iron.

• Bonded Elastomer – Outer ring and inner hub are bonded (vulcanized) to the elastomer. This minimizes the potential for the outer ring to move on the hub, losing true TDC position.

• Precision Balanced – Dampers are machined and precision balanced. • 60o of permanent easy to read timing marks (40o on SB Ford models)

Some parts are not legal for use in California or other states with similar laws/regulations

Related Products

More Like This

Reviews

Q & A

Videos & Articles
  • Piston Ring Style Chart
  • In this Tech Tip, John discusses LT1 rotating assembly options for a customer looking to build a solid autoX, drag, and occasional strip powerplant for his Firebird.
  • Tim M. has tried to stay true to the vintage route, but sometimes, exceptions must be made. For example, the original oiling system's paper element and canister are functional, but an upgraded system will be more reliable.

You May Also Like

Suggestions
Error
X
Note
X
Ok