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| Brand | | Crane Cams |
| Manufacturer's Part Number | | 144310-1 |
| Part Type | | Valve Spring and Retainer Kits |
| Product Line | | Crane Valve Spring and Retainer Kits |
| Summit Racing Part Number | | CRN-144310-1 |
| UPC | | 02117415646 |
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| Number of Springs Per Valve | | Dual |
| Outside Diameter of Outer Spring (in) | | 1.264 in. |
| Damper Spring Included | | No |
| Spring Rate (lbs/in) | | 369 lbs./in. |
| Inside Diameter of Outer Spring (in) | | 0.910 in. |
| Inside Diameter of Inner Spring (in) | | 0.670 in. |
| Valve Spring Style | | Standard |
| Coated | | No |
| Retainers Included | | Yes |
| Retainer Material | | Titanium |
| Locks Included | | Yes |
| Lock Style | | 7 degree |
| Lock Groove Quantity | | 1-groove beadlock-style |
| Lock Material | | Hardened steel |
| Quantity | | Sold as a kit. |
| Notes | | Designed to fit LS1/LS2/LS6 engines. |
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These valve spring and retainer kits from Crane offer you an easy, cost-saving method of ensuring that your cam is matched with the correct components. The springs will help strictly stock motors by releasing some of the horsepower that the stock components are holding back. They're heat-treated and can be installed in most cylinder heads with no machining.
Warranty
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| Installed Height (in) | | 1.750 in. |
| Seat Pressure at Installed Height (lbs) | | 129 lbs. |
| Open Height (in) | | 1.150 in. |
| Open Pressure (lbs) | | 352 lbs. |
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Suggested Parts: Parts that may improve the performance or installation of part number CRN-144310-1.
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Valve Spring Compressor, Steel, Stud Mount, for 3/8, 7/16 in. Rocker Studs, 12 in. Handle, Each
Part Number:
SUM-906784
Estimated Ship Date: 5/29/2012