100821 - Double Valve Spring
|IPD ITEM NUMBER||100821|
|QUALITY LEVEL||BEST (BETTER THAN OE)|
|UNITS PER CAR||8|
|WARRANTY||ONE YEAR PARTS WARRANTY|
For B18 or B20 heads. One inner and one outer spring. Cylinder head must be flycut for larger diameter of outer spring.
If your machine shop does not have the correct mill for enlarging the valve spring seats for double valve springs, you can purchase one from Isky Cams (part # 208).
Double valve springs are vital for maximum performance above 5,000 RPM. Performance grind cams have steeper slopes on their lobes and consequently the lifters and connected valve train have a harder time staying in contact with the lobe surface. The higher seat pressure and higher spring rate assist in making sure the valves are doing what the cam is calling for. Additionally they offer a safety margin in case one spring breaks the other will keep the valve clear of the pistion crown.
Technical Tips & Articles
Product Related Files & Downloads
Product Status & Availability
Adding items to your shopping cart and placing an order is only an intent to purchase. We will not charge you for anything until we can ship the products you ordered (if paying by credit card. PayPal is a prepayment method.) We will do everything we can to fill your order in a timely manner. You can cancel your order at any time prior to shipment.
This stocked product is available to order plus backorders are allowed.
We consider this a stocked product and normally try to keep some in stock. If you need more than we have available, feel free to order it and we will get it for you. It typically takes 10 days for additional stock to arrive and be packed for shipping.
|Units available to ship:||10+|