Choosing the right valve spring for your engine type requires careful consideration of several factors, including the engine’s specifications, intended use, and the type of camshaft being used.

This NHTSA investigation relates to more than just the 2.7-liter engine’s valvetrain. The root cause of this issue appears to be that the valve keepers, which lock the valve spring retainer to ...

$99.98 FALCON PERFORMANCE VALVETRAIN This item is for our Stage-2 valve spring, retainer, and lock kit for Ford small block V-8 engines using up to a .525 in. lift flat tappet camshaft. P/N (16) ...

You need to remove the valve springs, retainers, locks, and seals first, using a valve spring compressor tool. Then, you can pull out the valves from the guides, using pliers or a valve removal tool.

This new information provides a measurable dimension that can be easily checked for the cylinder head and valve combination you’re working with. No sample retainers or fixtures are needed. The ...

As engine speed increases, the valve must open and close in a shorter period of time. What is easily accomplished at 3,000 rpm must be completed in half the time at 6,000 rpm.

Another misconception is that dual valve springs are a must in high performance applications. The truth is that the installed height of the spring plays a huge role in the single vs. dual design ...

Say one valve seat is machined slightly lower, adding .010 inch, a spring seat dug a little deeper at the factory adding .015 inch, and a looser retainer adding another .010 inch.

To avoid potential disaster in a high-performance engine, its valve springs should be inspected regularly. Most machine shops have valve spring testers and might only want a free lunch in exchange ...

Beta Ti alloy valve spring retainers are newly developed for use in ness produced automobiles for the first time. Ti alloy valve spring retainers with a weight saving of 42%, compared to steel ...