Proline Dual Valve Springs, High RPM Hydraulic Roller 155 lbs@1.900" 415 lbs/in - Chevy BBC 454 & 351C Cleveland Hydraulic Roller (Polished)
351C & BBC Hydraulic Roller Valve Springs - High RPM
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Description
DRP High RPM Polished Dual Valve Springs. 351C & BBC 454 Hydraulic Roller
Race/Endurance high performance series by PAC Springs.
Polished LS small OD, light weight Hydraulic Roller Dual Valve Springs.
fits Big Block Chevy 454 & 351 Cleveland
Installed Height: 1.900" or 1.800"
Closed / Seat Load: 155lbs @ 1.900" / 176lbs @ 1.850" / 200lbs@1.800"
Spring Rate: 415 lbs
Max Lift: @1.900" .700" @ 060" safety.
@1.800" .620" @ 060" safety.
Valve Spring OD: 1.312"
Valve Spring ID: 0.694"
MADE IN U.S.A BY PAC SPRINGS.
| Spring Height Inch | Load lbs |
| 1.950 | 134 |
| 1.900 | 155 |
| 1.850 | 176 |
| 1.800 | 197 |
| 1.750 | 217 |
| 1.700 | 238 |
| 1.650 | 259 |
| 1.600 | 280 |
| 1.550 | 300 |
| 1.500 | 321 |
| 1.450 | 342 |
| 1.400 | 363 |
| 1.350 | 383 |
| 1.300 | 404 |
| 1.250 | 425 |
| 1.200 | 446 |
| 1.150 | 467 |
| 1.122 | Coil Bind |
Specifications
| SKU | DRP-9415P-16 |
| Barcode # | 036584270461 |
| Brand | DRP |
| Seat Height | 1.85 |
| Damper | Yes |
| Seat Pressure | 158 |
| Outer Spring Outside Diameter | 1.55 |
| Outer Spring Inside Diameter | 1.14 |
| Number Of Springs | 2 |
| Inner Spring Inside Diameter | 0.74 |
| Valve Spring Series | Race Endurance |
| Coil Bind Height | 1.16 |
| Spring Rate | 439 |
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