Atomic Barra On-Car Valve Spring Change Tool

Atomic Barra On-Car Valve Spring Change Tool – Ford DOHC | No Head Removal Required

Description:
The Atomic Valve Spring Tool (Part No. 100704) is the original on-car spring compressor designed specifically for Ford Barra DOHC 4.0L engines. Now refined and improved, this latest version features key upgrades for easier use, faster spring swaps, and better fitment — all while retaining the rugged durability that made it a workshop favourite.

Whether you're upgrading to heavy-duty springs, changing retainers, or servicing worn-out components, this tool makes the job easy — without removing the cylinder head.

✅ Key Features

✅ Designed Specifically for the Barra DOHC Platform

• Suits all Ford 4.0L DOHC engines (BA–FGX)

• No head removal required

• Perfect for valve spring upgrades, retainer/collet replacement, and stem seal changes

✅ Latest Version Improvements

• Integrated O-ring air seal
  • Direct cylinder pressurisation through spark plug thread

• Slimmer profile
  • Easier access to rear cylinders under cowl

• Streamlined design
  • Faster transition from one cylinder to the next

✅ Trusted Workshop-Grade Design

• Genuine Atomic tooling – patented and built by the original designer

• Durable and reliable – ideal for workshop or DIY use

• Won’t damage valve stems, retainers, or collets during operation

🔧 Why You Need This Tool

Changing valve springs on a Barra engine usually means removing the head — unless you have the right tool for the job. The Atomic On-Car Valve Spring Tool eliminates that hassle by allowing you to compress springs with the head still on the engine, using compressed air to hold the valves shut.

Compared to imitations, this is the real deal: stronger, faster, and precision-built specifically for Barra engines. If you're upgrading springs or freshening up a head while the engine is still in the car, this tool will save you hours.

📦 What’s Included

• 1x Atomic On-Car Valve Spring Tool – Part No. 100704

• Integrated air fitting for cylinder pressurisation

• Ready to use – no additional adaptors required