Isky TOOL ROOM™ Valve Springs are the ultimate for Winston Cup, Busch, Super Truck, WoO, Hav-a-Tampa series, and other 9:1 or all-out high compression oval track engines
Part # 295D 295-D
Product Features:
- Worlds Only Endurance Test Certified Racing Valve Spring
Product Specifications:
- Tool Room™ Racing Valve Spring
- Single w/Damper
- Outer OD/ID 1.260/0.886 in.
- Seat Pres. 135lbs at 1.775in.
- Open Pres. 350lbs at 1.175in.
- Rate Per Inch 360
Test Proven: Every Part No., Every Batch, Every Time!
Theoretically, it’s possible for almost anyone to make a good valve spring once. Even with rather “loose” manufacturing and quality control standards, they can simply be lucky. They may even do it again some day. But, there is only one way to do it right every time. You must of course begin with the finest valve spring wire obtainable, wind it precisely on modern equipment and employ the special processing techniques necessary for maximum load retention. Even this however, is not enough, because valve springs that are routinely manufactured this way can and do experience failures (Just Ask Our Competition). The only way to be absolutely certain every batch of endurance racing valve springs is “worthy” is to test them. Not just any test mind you. (One company we know of feels that five or ten minutes of “prototype” testing at RPM is adequate)! This is an endurance test? Of course not and those who pretend to be endurance testing while performing such “phantom” tests are guilty of deceiving the racing community.
Rather than meaningless tests such as these, a real measure of stamina would be an endurance test of long duration under actual engine/race track operating conditions. Our 1,000 Racing Mile Endurance Test Standard is such a test, the first and only one of its kind in the industry. A test where only the best earn their stripes. GOLD STRIPES. The Precision 9900 Series “Gold Stripe” Tool Room™Racing Valve Springs by Isky. They’re the world’s only endurance test-certified racing valve springs, guaranteed “One of the Thousand,” alumni of the gruelling 1,000 mile Spintron® endurance test, where two complete sets are run with a zero failure tolerance. No breakage and no excessive load loss are permitted, because it’s pass or fail for Tool Room™ Springs - there is no gray area in between. If they don’t measure up, we don’t sell them—period! We test every batch of every part number we produce. We have to because you’re depending on us to deliver the absolute maximum endurance possible in a racing valve spring. And we do. In a word, Tool Room™ valve springs are indefatigable! That’s why we refer to them as The World’s Finest Racing Valve Springs™—because without any doubt whatsoever, they most certainly are!
Tool Room™ Valve Springs; the Crown Jewels of Isky’s Endurance 9000™ Tool Room family of racing valve springs.