- How to Make a Camshaft!
- How Important is a Camshaft?
- How to Select The Right Camshaft?
- Sole Purpose of Degreeing Your Cams
- How to Degree Your Camshafts?
- Flat Tappet Break In Procedure
- How to Determine Valve Lash?
- Discover the Spintron
- DLC Cam Follower
- Valve Guide
- Valve Spring Designs
- OEM vs Adjustable Gears
- Why Upgrade a Cam Gear?
- Mitsubishi Lancer Evolution
- Jimmy Oakes 2JZ Head Upgrade
- Extreme Racing
Maximize horsepower & reliability of your engine
What is the Function of the Valve Guide?
Valve guides are important components of modern internal combustion engines. They ensure that engine valves are properly aligned and function correctly by introducing air for combustion or eliminating post-combustion exhaust gases. A durable and precisely crafted valve guide is essential because it supports the intake/exhaust valve stem, stabilizes valve attitude, and allows heat to escape to the cylinder head side.
Manganese Bronze
Received 550 meters of our proprietary Manganese Bronze ready to be turned into machine engineered high quality intake and exhaust guides.


Cast Iron vs Maganese Bronze
Why are Bronze Valve Guides Better?
Cast iron guides are great for OEM street engines but can become damaged or even crack and fail when used in high horsepower performance or racing engines. Kelford Cams have developed a series of high-performance valve guides for popular engines including Ford, Toyota, Nissan, Toyota, Subaru, Mitsubishi & Honda. Excellent for setting up your cylinder heads to make reliable power.
Manganese bronze guides offer many benefits over cast iron; higher strength, more load capacity, low friction, improved heat transfer rate and good corrosion resistance.
Manganese bronze is compatible with all valve stem materials. If you’re upgrading your valves and they are stainless steel, manganese bronze guides are required. Cast iron guides are incompatible with stainless steel, these parts can gall/stick and seize.
Designed to perfectly fit the valve stem seals we sell. The intake and exhaust guides are shaped differently, to allow for improved air flow on the intake side and to withstand the high temperatures of exhaust flow.
Precision Engineered
The valve guides are machined in-house on our brand-new CNC turning centres to extremely tight tolerances.
Requires honing after fitment.
MANGANESE
VALVE GUIDES
Kelford Cams Propietary Manganese Bronze
BRONZE
VG202-IN-12 | 1JZ / 2JZ Intake Valve Guides
SKU:
VG202-IN-12
USD $118.80Intake valve guide for Toyota 1JZ-GTE and 2JZ-GTE. OD: 11.05mm. ID: 5.97mm. Set of 12. High quality precision machined
VG267-12 | G16E-GTS Valve Guides
SKU:
VG267-12
USD $118.80Valve guides for the Toyota G16E-GTS engine found in the GR Yaris and GR Corolla. Intake and Exhaust guides are identical on this engine.
VG270-12 | Rotax 900ACE DOHC Valve Guides
SKU:
VG270-12
USD $118.80Guide design features a stopper for ease of installation. OD: 9.055mm. ID: 4.965mm. 33.0mm length. Set of 12.
VG218-24 | Barra Valve Guide
SKU:
VG218-24
USD $264.00Ford Barra 4.0L 6cyl Turbo and non Turbo. Intake and exhaust valve guide complete set of 24. OD: 10.04mm. ID: 5.97mm.
VG03-12 | 1503-1630 Rotax 4TEC Valve Guides
SKU:
VG03-12
USD $118.80Intake and exhaust valve guide set: Set of 12. Designed to fit OEM valve stem seal. Tapered profile to help improve port gas flow.