SOLID ROLLER Dual Valve Springs *TOOL STEEL KIT* 11/32" stem, PROLINE, 250lbs@1.800" / 500lbs/in Chevy 350, Holden 308 SBF 302w 351w Windsor
PROLINE SOLID ROLLER - Max lift 0.660" *KIT* 11/32 Valve
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Description
DRP High RPM Polished LS Dual Valve Springs kit fits Small Blocks with 11/32" Valve. Tool Steel Retainers Kit
PROLINE SERIES for Small Blocks with 1.800" install height
Fits*- Chevy 350 & Ford Windsor 302 347 351 & Holden 308 with Solid Roller applications.
*Note* can be installed higher for a lighter application or more lift if required.
Solid Roller Proline Race/Endurance high performance series valve springs by PAC Springs manufactued for DRP.
Latest tech, Small diameter, light weight PAC dual valve springs. These LS small OD style, Polished suits Solid Roller camshaft applications. A perfect balance of design between mileage and high performance. Upgrade to the DRP light weight valvetrain, the "Smart Spring System".
Simplify your engine builds & shop inventory, make the change to the "DRP One System" valve springs system. All One System springs share a common valve diameter size, thus making life easier to use a 8mm retainer or a 11/32" retainer! Choose your spring height & rate, its that simple.
DRP-8500P-TSBKIT Specifications
- Installed Height (normal): 1.800" (Small Blocks)
- Retainer: Tool Steel
- Seat Load: 250lbs@1.800" / 225lbs@1.850" / 200lbs@1.900"
- Open pressure @ .620" lift: 590lbs open / 1.800" installed height
- Valve Spring Rate: 500 lbs/in
- Coil Bind Height: 1.080"
- Max Lift:
- 0.660" @ 060" safety when installed at 1.800"
- 0.710" @ 060" safety when installed at 1.850"
- MADE IN U.S.A BY PAC SPRINGS.
Whats in the DRP-8500P-TSBKIT
- Retainers: Comp Cams - Tool Steel
- Valve Springs: DRP-8500P-16 Dual Small OD LS style Race springs by PAC Racing
- Locks: Comp Cams - Race machined locks
- Locators: DRP-SL570 - suits .570" guide (common alloy heads guides)
- Valve Stem Seals: DRP steel jacket viton 11/32" Stem - suits 0.530" top of guide
8500P Valve Springs Load Chart:
| Spring Height Inch | Load lbs |
| 2.050 | 125 |
| 2.000 | 150 |
| 1.950 | 175 |
| 1.900 | 200 |
| 1.850 | 225 |
| 1.800 | 250 |
| 1.750 | 275 |
| 1.700 | 300 |
| 1.650 | 325 |
| 1.600 | 350 |
| 1.550 | 375 |
| 1.500 | 400 |
| 1.450 | 425 |
| 1.400 | 450 |
| 1.350 | 475 |
| 1.300 | 500 |
| 1.250 | 525 |
| 1.200 | 550 |
| 1.150 | 575 |
| 1.100 | 600 |
| 1.080 | Coil Bind |
*Installation Notes: May require machine work and modification to fit heads. Please ask if unsure
Specifications
| SKU | DRP-8500P-TSBKIT |
| Brand | DRP |
| Seat Height | 1.800 |
| Damper | No |
| Seat Pressure | 250 |
| Number Of Springs | 2 |
| Coil Bind Height | 1.080 |
| Spring Rate | 500 |
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