706 LS Cylinder Heads – Rebuilt, Fresh Valve Job, Ready to Bolt On
Looking for high-quality 706 LS heads that are already cleaned, surfaced, and ready to install? You just found them. These rebuilt LS cylinder heads come with a fresh valve job and are in excellent condition, making them a smart, reliable choice for your next LS engine project.
Whether you’re rebuilding a stock motor, doing an LS swap, or building a performance street engine, these 706 LS heads deliver great value without the long wait or high cost of brand-new parts. They bolt straight on, so you can get your Camaro, Corvette, Silverado, Tahoe, or other LS-powered vehicle back on the road faster.
Why Choose These Rebuilt 706 LS Heads?
These heads have been carefully prepared for reliable performance:
- Thoroughly cleaned inside and out
- Decks properly surfaced for a perfect seal
- Fresh valve job with new valves, seats, and seals
- Inspected and ready to bolt on right out of the box
No surprises. No extra machine shop trips. Just solid, dependable LS1 style cylinder heads that work great for daily driving, weekend cruising, or mild performance builds.
Key Features & Benefits
| Feature | What It Means for You |
| Fresh Valve Job | Better sealing, smoother running, more power |
| Surfaced Mating Surfaces | Leak-free installation and long-term reliability |
| Deep Cleaned | No old debris or carbon buildup |
| Bolt-On Ready | Save time and money on install |
| OEM 706 Casting | Proven design trusted by LS builders everywhere |
Built for Real-World Use
The 706 casting is one of the most popular LS heads for good reason. They offer a great balance of performance and durability for 5.3L, 5.7L, and 6.0L engines. Whether you’re keeping it naturally aspirated or planning a mild cam and bolt-ons, these heads are up to the task.
Drivers love how these rebuilt LS heads wake up their engines with improved throttle response and consistent power. Because they’ve already had the valves refreshed and surfaces machined, you avoid common issues like compression leaks or poor sealing that can happen with worn-out stock heads.
Perfect For:
- LS engine rebuilds and refreshes
- Budget-friendly performance upgrades
- LS swap projects into older trucks, muscle cars, or project vehicles
- Daily drivers that still need strong, reliable power
- Anyone who wants quality parts without paying full price for new
What You Receive
You get a matched pair of 706 LS cylinder heads – both driver and passenger side. Each head has been:
- Completely disassembled and cleaned
- Given a professional valve job
- Surfaced for flatness and proper gasket sealing
- Carefully inspected before being packaged
Everything is ready to go. Just install your gaskets, headers, intake manifold, and rockers, and you’re set.
Easy Installation & Peace of Mind
These heads are truly bolt-on ready. Most experienced DIYers and shops can install them in a weekend. They use standard LS head gaskets and hardware, so no special parts are required. If you’re new to LS engines, you’ll find plenty of online guides and support because these are such a common upgrade.
People choose rebuilt 706 LS heads because they offer excellent bang for the buck. You get refreshed performance at a fraction of the cost of new heads, while still getting years of dependable service.
Frequently Asked Questions
Are these heads completely ready to install?
Yes! They are cleaned, surfaced, and have a fresh valve job. Bolt them on with new gaskets and you’re good to go.
Will they fit my LS engine?
They are compatible with most LS1, LS6, and similar 5.3L–6.0L engines. Always confirm your specific block and year if unsure.
What kind of power can I expect?
Great for stock to mildly modified setups. Pair them with a camshaft, headers, and tune for noticeable gains over worn stock heads
Ready to give your LS engine the refresh it deserves? These rebuilt 706 LS heads are in stock and ready to ship. Add them to your cart today and feel the difference on your next drive.
Stop dealing with tired, leaky heads. Upgrade with confidence using these fresh, bolt-on LS cylinder heads and enjoy better performance and reliability. Your project (and your wallet) will thank you.
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