---
product_id: 94329989
title: "8142780 8\" Big Block Chevy Harmonic Damper Internal Balance SFI BBC 396 427"
brand: "assault racing products"
price: "€ 221.76"
currency: EUR
in_stock: false
url: https://www.desertcart.com.cy/products/94329989-8142780-8-big-block-chevy-harmonic-damper-internal-balance-sfi
store_origin: CY
region: Cyprus
---

# 10000 RPM 14.5 lbs 8" Diameter 8142780 8" Big Block Chevy Harmonic Damper Internal Balance SFI BBC 396 427

**Brand:** assault racing products
**Price:** € 221.76
**Availability:** ❌ Out of Stock

## Summary

> Rev Up Your Ride! 🚗💨

## Quick Answers

- **What is this?** 8142780 8" Big Block Chevy Harmonic Damper Internal Balance SFI BBC 396 427 by assault racing products
- **How much does it cost?** € 221.76 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/94329989-8142780-8-big-block-chevy-harmonic-damper-internal-balance-sfi)

## Best For

- assault racing products enthusiasts

## Why This Product

- Trusted assault racing products brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **SFI Approved:** Meets stringent safety standards for peace of mind.
- • **Internal Balance:** Designed for smooth operation and reduced vibrations.
- • **Lightweight Design:** Weighs only 14.5 lbs for enhanced efficiency.
- • **High RPM Capability:** Rated for up to 10,000 RPM to unleash your engine's potential.
- • **Precision Engineering:** Crafted for optimal performance and durability.

## Overview

The Assault Racing Products 8142780 8" Big Block Chevy Harmonic Damper is engineered for high-performance applications, featuring an internal balance design, a robust RPM rating of 10,000, and a lightweight construction of just 14.5 lbs. With 18.1 SFI approval, this damper ensures safety and reliability for your racing needs.

## Description

This balancer is a brand new SFI series harmonic damper that is 18.1 SFI Certified. It is intended for racing applications and high performance street applications to 10,000 RPM plus. This damper is unique in our line in one respect. They are the only damper not made to the original factory diameter. The original 396/427 dampers were 7" in diameter from G.M. When the 454 came out, G.M. switched to an 8-inch damper. We elected to use the 8-inch diameter on our 396/427 model to maintain consistency and also because we use these dampers in conjunction with a bolt-in counterweight to create the 454/502 model. Although we list this as a 396/427 damper, it will also work on any displacement big block engine that has a neutral balance rotating assembly. These dampers feature 60Â° of easy to read timing marks plus engraved marks each 90 degrees of the circumference.

## Features

- Internal Balance
- Outside Diameter: 8 in
- RPM Rating: 10000
- Weight: 14.5 lbs
- 18.1 SFI Approved

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Assault Racing Products |
| Brand | Assault Racing Products |
| Manufacturer Part Number | 8142780 |

## Images

![8142780 8" Big Block Chevy Harmonic Damper Internal Balance SFI BBC 396 427 - Image 1](https://m.media-amazon.com/images/I/51kFpXbfw7L.jpg)
![8142780 8" Big Block Chevy Harmonic Damper Internal Balance SFI BBC 396 427 - Image 2](https://m.media-amazon.com/images/I/511W9LYjlRL.jpg)
![8142780 8" Big Block Chevy Harmonic Damper Internal Balance SFI BBC 396 427 - Image 3](https://m.media-amazon.com/images/I/51eGXCF0ZbL.jpg)
![8142780 8" Big Block Chevy Harmonic Damper Internal Balance SFI BBC 396 427 - Image 4](https://m.media-amazon.com/images/I/61xwJULxt2L.jpg)

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**Shop now:** [https://www.desertcart.com.cy/products/94329989-8142780-8-big-block-chevy-harmonic-damper-internal-balance-sfi](https://www.desertcart.com.cy/products/94329989-8142780-8-big-block-chevy-harmonic-damper-internal-balance-sfi)

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-03-15*