Dual Valve Spring sets consist of an innerspring and an outer spring per valve. These springs are rated at 200 pounds pressure compared to a standard production spring of around 80 – 90 pounds pressure. There are various modifications to ensure the correct fitment of these springs the main factor is to ensure that the
STK Performance Valve Springs Read Post »
Performance camshafts are referred to as billets in the trade, but this is incorrect in this case. A Billet is machined from a round bar of iron, in our case they should be referred to as Blanks which are cast. As most enquiries over the years have been based on Billets, we continue the trend
Chilled Cast Performance Camshafts Read Post »
When operating at high RPM it is advisable to replace the standard production valve spring with a heavy-duty valve spring. Benefits when installed correctly :Avoid Coil BindAvoid valve bounceAvoid valve spring failureAvoid valve damageAvoid power loss A standard valve spring has a pressure rating of around 80lbs pressure fully compressedA Competition Valve Spring has a
There is so much debate around camshafts, which is the best to use, mild or wild duration, high or mild lift, which degree makes the most power, and if it works on the track, will it work for me? These questions are generally thrown around on forums and social media networks with some realistic and
A Practical understanding of Camshaft Selection Read Post »
REV Kits We receive calls daily regarding requests for Rev Kits… unfortunately, the understanding of a Rev Kit is completely misunderstood and we’d like to point you in the right direction should you be considering upgrading your ride… What is a Rev Kit… The biggest misconception is that by fitting a Rev Kit and removing
What is a Rev Kit? Read Post »
STK Performance Cam Bucket for Mechanical / Solid Application ( Volkswagen 8v & 16v ) Part Number STK3S Improved top thickness 0,5mm-1mm thickness on the surface of the cam Bucket ( as per diagram ) This material specification & hardness will prevent the Cam Bucket from becoming concave due to inferior standard production cam buckets Enables
It’s All About Reliability Read Post »
The STK Performance Valve is forged using 21-4N Stainless Steel which is strong and can handle most applications. What is 21-4N ? 21-4N Super alloys or high performance alloys have an ability to function at temperatures above 540ºC(1000ºF) with deformation resistance and high surface stability. Super alloy 21-4N valve steel is widely used in the
Valve Spring Pocket Clearance Valve spring pocket clearance is the gap between the inside diameter of the valve spring pocket (or cup, if used) and the outside diameter of the valve spring.Too much clearance will result in the spring “dancing” around in the head, which “beats up” the spring mounting surface and the spring itself.
Valve Spring Fitment – Technical Information Read Post »
