key_features">Key Features

28.2 oz counterweight restores proper external balance for pre-1982 Ford small blocks
Bolt-on design attaches directly to Tilton ST-246 series flywheels
Required for 289, early 302, and 351W engines with 28 oz external balance cranks
Precision-manufactured for exact balance specification
Eliminates the need for machine work or custom flywheel balancing

Description

Ford's externally balanced small blocks require precise counterweight distribution to eliminate harmful vibrations. Early Ford 289, pre-1982 302, and all 351W engines use 28.2 oz external balance specifications - meaning the crankshaft, flywheel, and harmonic balancer must all share the same imbalance factor. Running a mismatched balance configuration creates violent vibrations that accelerate bearing wear and can destroy an engine.

This 28.2 oz bolt-on counterweight solves the balance equation when running a Tilton ST-246 twin disc clutch system on Ford engines that require 28 oz external balance. Tilton's internally balanced (0 oz) flywheels ship without external counterweight mass, which works perfectly for internally balanced engines but leaves early Ford small blocks dangerously out of balance on the flywheel side.

The bolt-on design provides a clean, reversible solution without machine work. Rather than drilling material from a flywheel or paying a balance shop to weld on counterweight mass, this precision counterweight bolts directly to Tilton ST-246 series flywheels and delivers the exact 28.2 oz specification your Ford crankshaft requires.

Compatible with Ford applications requiring 28 oz external balance paired with Tilton ST-246 series twin disc clutch systems.

Kit Includes

One 28.2 oz bolt-on counterweight
Manufacturer's warranty against defects

28.2 oz Bolt-On Counterweight | Tilton ST-246 Series | Ford External Balance

Comes with?

Specifications

Ratings and Reviews