Proline LS1 LS2 LS3 1.300" od, 415lbs, 160lbs @ 1.800" Installed 0.670" lift. Polished Hydraulic Roller Dual Valve Springs;
LS Valve Springs Polished Proline Series 0.670" Max lift
Description
DRP High RPM Polished LS Dual Valve Springs fits LS1, LS2, LS3.
Also suitable for Aluminium Heads - Chevy 350 & 302 347 Windsor Hydraulic Roller & Solid Flat Tappet.
Race/Endurance high performance series valve springs by PAC Springs
PAC dual valve springs LS small OD style, Polished suits Hydraulic Roller Dual Valve Springs.
Installed Height: 1.800"
Seat Load: 160lbs @ 1.800" / 181lbs @ 1.750"
Open pressure @ .620" lift: 420lbs open
Spring Rate: 415 lbs
Coil Bind Height: 1.070"
Max Lift: .670" @ 060" safety when installed at 1.800"
MADE IN U.S.A BY PAC SPRINGS.
Recommended Parts:
Retainers:
- 11/32 Valve Stem: - use DRP-RT1132-16
- 8MM Valve Stem: - use DRP-RT8mm-16
Spring Locators:
- 0.500" Guides for LS1, LS2, LS3 use: DRP-SL500-16
- 0.500" Guide inc Seal for LS1, LS2, LS3 use: DRP-LSVSS-DS
- 0.570" Guides for aftermarket cylinder heads use: DRP-SL570-16
Load Chart:
| Spring Height Inch | Load lbs |
| 1.950 | 97 |
| 1.900 | 118 |
| 1.850 | 139 |
| 1.800 | 160 |
| 1.750 | 181 |
| 1.700 | 202 |
| 1.650 | 223 |
| 1.600 | 244 |
| 1.550 | 264 |
| 1.500 | 285 |
| 1.450 | 306 |
| 1.400 | 327 |
| 1.350 | 348 |
| 1.300 | 369 |
| 1.250 | 390 |
| 1.200 | 411 |
| 1.150 | 431 |
| 1.100 | 452 |
| 1.067 | Coil Bind |
Specifications
| SKU | DRP-8415P-16 |
| Brand | DRP |
| Outside Diameter | 1.300 |
| Inside Diameter | 0.680 |
| Seat Height | 1.800 |
| Damper | No |
| Seat Pressure | 160 |
| Number Of Springs | 2 |
| Valve Spring Series | Race/Street |
| Coil Bind Height | 1.07 |
| Spring Rate | 418 |
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