Endurance Plus™ Valve Springs are test-proven for 850 racing miles, Endurance Plus Springs feature a higher alloy outer spring “plus” special processing for increased durability. They are excellent for use in Sprint cars, Super Modifieds, Super Late Models, Road Racing, and other race cars running up to 8,400 RPM. Sold in sets of 16.
- Valve Spring - Plus-Series - Dual Spring / Damper - 440 lb/in Spring Rate - 1.120 in Coil Bind - 1.530 in OD
- Set of 16
- Part Number: 8205 PLUS
Specifications
| Brand |
Isky Cams |
| Part Number |
8205PLUS |
|
Product Line
|
Endurance Plus Series
|
|
Spring Style
|
Standard
|
|
Spring Quantity
|
Dual Spring
|
|
Damper
|
Yes
|
|
Spring Rate
|
440 lb/in
|
|
Coil Bind Height
|
1.12 in
|
|
Installed Height
|
1.9 in
|
|
Outside Diameter of Outer Spring
|
1.53 in
|
|
Outside Diameter of Inner Spring
|
1.005 in
|
|
Inside Diameter of Outer Spring
|
1.11 in
|
|
Inside Diameter of Inner Spring
|
0.73 in
|
|
Maximum Valve Lift
|
0.65 in
|
|
Seat Load (LBS)
|
150 lbs
|
|
Seat Load At (in)
|
1.9 in
|
|
Open Load (LBS)
|
420 lbs
|
|
Open Load At (in)
|
1.3 in
|
|
Material
|
Steel
|
|
Quantity
|
Set of 16
|
