Cam & Valve Train
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Selecting the Proper Valve Springs
Selecting the Proper Valve Springs Valve springs are one of the most critical components of your engine. It is very important to match the camshaft and it's potential RPM range with the correct spring rate. We will attempt to explain it in this article, but first lets go over some valve spring...
How to Degree Your Camshaft: A Step-by-Step Guide for the Ford Inline Six
Why Degreeing the Cam Matters
"Degreeing the cam" means verifying that the camshaft's position in the engine is properly synchronized with the crankshaft — so that the rise and fall of the pistons precisely matches the...
Camshaft Installation Tips for the Ford Inline Six
Avoiding the most common mistakes that lead to premature cam failure
A camshaft swap is one of the most impactful performance upgrades you can make to a Ford inline six — but it is also one of the most commonly botched. Premature cam failure...
Throttle Body Idle Air Bypass: Setup and Installation for Ford Inline Six EFI
Originally compiled from the Classic Inlines technical archive. Adapted and expanded for the fordsix.com community.
When converting a Ford inline six to individual throttle body EFI, one of the most important — and...
Engine Management Systems: A Technical Guide for Ford Inline Six Builders
Originally compiled from the Classic Inlines technical archive. Adapted and expanded for the fordsix.com community.
Modern engine management systems (EMS) do a fine job of ensuring that engines run cleanly and...
Selecting the Proper Valve Springs
Valve springs are one of the most critical components of your engine. It is very important to match the camshaft and it's potential RPM range with the correct spring rate. We will attempt to explain it in this article, but first lets go over some valve spring...
Understanding Rocker Arm Ratio
The rocker arm is the lever that transfers camshaft lobe motion to the valve. Its ratio determines how much the valve actually opens relative to the cam lobe lift. A 1.5:1 rocker arm multiplies the cam lobe lift by 1.5 — so a cam with 0.250" lobe lift produces...
How to adjust your valves properly
First, you need to determine if you have solid lifters or hydraulic lifters. Solid lifters were commonly used on the early 144/170ci motors, while hydraulic lifters were used on the later 144/170ci and all 200/250ci engines. However, this is only a rule of...
The following basic camshaft installation tips have been drawn from experience and reflect the most common mistakes that result in premature camshaft failure. These are not meant in any way to replace the Original Equipment Manufacturers (OEM) installation procedures. These basic installation...
What is meant by Degreeing the Camshaft, and why is it necessary?
The phrase "Degreeing the Cam" means you are making sure the camshaft's position in the engine coincides with that of the crankshaft, so that their rotations are synchronized. This is the only way you will know if the rise and...
Other related articles: Selecting the Proper Camshaft, Static vrs Dynamic Compression.
While most of our customers know what lift and duration are, most have no idea what the term Lobe Center means, or how it effects the engines performance. Therefore the biggest obstacle to overcome when...