Proline RPM Dual Valve Springs Kits Hydraulic ROLLER 11/32" valve, Fits 350 Chevy, 302W Windsor, Chrysler 360, Holden 253 308
Proline Hydraulic Roller Kit, Max lift 0.670", 11/32"
Description
Detroit Racing Products - Dual Valve Springs Kit - Proline Series - High RPM
Fits the After Market Chevy, Ford & Chrylser Cylinder heads with 11/32" valves.
Upgrade & modernise your Chevy 350, Ford Windsor small blocks & Holden 308* with these small OD, light weight valve springs kits.
Whats in the Kit?
- PAC Dual Springs - DRP-8417P-16 (Proline RPM series)
- Steel Retainers - 7 Deg *(can upgrade to tool steel)
- Locks - 7 Deg / 11/32" Valve square groove (Race Machined)
- Spring locators - suit 570" guide (common bronze guide)
- Valve Stem seals: Viton knock on type - 0.530" / 11/32" Valve
*Note for Holden 308: Holden 308 heads will need spring pads machined down to fit a 1.800" installed - use Comp Cams cutter #4716CPG - Cutter is 1.320" OD x 0.630"
Installed Height: 1.800"
Seat Load: 160lbs @ 1.800" / 181lbs @ 1.750"
Spring Rate: 417 lbs / inch
Max Lift: .670" @ 060" safety.
| 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 |
Made in USA.
BE ADVISED: IMAGE MAY DIFFER FROM ACTUAL PRODUCT.
Specifications
| SKU | DRP-9415P-SBKIT |
| Brand | DRP |
| Seat Height | 1.835 |
| Seat Pressure | 129 |
| Coil Bind Height | 1.1 |
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