Crane Cams LS1 dual Valve Springs good to 650 lift
11-29-2007, 02:41 PM
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Crane Cams LS1 dual Valve Springs good to 650 lift Sold, thanks ls1Tech.
bought these from Texas speed out of one of the dyno runs they had. It is the complete kit with titanium alloy spring retainers and seats included!
They are almost new. $250
http://texas-speed.com/shop/item.asp...d=210&catid=48
LS1/LS6 Chevy/GMC V-8 Valve Spring Kit
• Made from premium quality chrome-silicone steel
• Precision-wound and heat-set for durability
• Spintron-proven and dyno-tested
• Increases horsepower and torque yield for any LS1 cam profile
• Quiet-operating dual spring design controls harmonics without triggering stock "knock sensor"
• titanium alloy spring retainers seats & seals included!
• No-matching required to install
• This is the LS1 spring that works and doesn't break!
Crane R&D has put many test hours into these Dual-Coil valve springs for the LS1 and Vortec 4.8L/5.3L/6.0L engines. The new spring has shown outstanding performance and durability in both road racing and drag racing applications. Extensive testing has shown 110-115 lbs. seat pressure provides the best power throughout the operating range up to 7500 RPM. In addition, the dual-coil design maximizes harmonic control while providing maximum insurance against dropping a valve due to a broken stock-type single spring. Although designed and intended for use with Crane LS1 cams, these valve springs have shown significant improvements in low-end throttle response and top-end power with the stock LS1 valve train! The installed seat pressure is 112 lbs @ 1.800'' with a maximum recommended lift of .650'' at the valve with an accompanying open pressure of 352 lbs. For 2002 and newer applications, it is necessary to remove the stock spring seat/guide seal assembly and use Crane 270-144460-16 spring seat inserts with 2001
bought these from Texas speed out of one of the dyno runs they had. It is the complete kit with titanium alloy spring retainers and seats included!
They are almost new. $250
http://texas-speed.com/shop/item.asp...d=210&catid=48
LS1/LS6 Chevy/GMC V-8 Valve Spring Kit
• Made from premium quality chrome-silicone steel
• Precision-wound and heat-set for durability
• Spintron-proven and dyno-tested
• Increases horsepower and torque yield for any LS1 cam profile
• Quiet-operating dual spring design controls harmonics without triggering stock "knock sensor"
• titanium alloy spring retainers seats & seals included!
• No-matching required to install
• This is the LS1 spring that works and doesn't break!
Crane R&D has put many test hours into these Dual-Coil valve springs for the LS1 and Vortec 4.8L/5.3L/6.0L engines. The new spring has shown outstanding performance and durability in both road racing and drag racing applications. Extensive testing has shown 110-115 lbs. seat pressure provides the best power throughout the operating range up to 7500 RPM. In addition, the dual-coil design maximizes harmonic control while providing maximum insurance against dropping a valve due to a broken stock-type single spring. Although designed and intended for use with Crane LS1 cams, these valve springs have shown significant improvements in low-end throttle response and top-end power with the stock LS1 valve train! The installed seat pressure is 112 lbs @ 1.800'' with a maximum recommended lift of .650'' at the valve with an accompanying open pressure of 352 lbs. For 2002 and newer applications, it is necessary to remove the stock spring seat/guide seal assembly and use Crane 270-144460-16 spring seat inserts with 2001
Last edited by 72Elkytpi; 12-03-2007 at 01:53 PM.
~Cole~
11-29-2007, 06:27 PM
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they were used on a dyno run at texas speed. They tested a few engines with them and that may only be a few hours. I bought some heads with springs already installed so I dont need them. You can call Texas speed and ask them what they used them for. It was about 9 months ago.
Rich
Rich
