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PAC-1223 Beehive Valve Spring Set - 1.105" OD, 90lbs @ 1.470", 324 lbs/in Spring Rate, .500" Max Lift
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* Whole number only
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Manufacturer: Pacaloy
Part No.: PAC-1223
The PAC 1223 Valve Spring was primarily designed for Ford 4.6L / 5.4L 4V Appications with up to .500" Lift
Fits B, C, 03 Cobra, Mach 1 and Navigator Cylinder Heads - Will not fit GT500 / Cobra with different installed heights.
These Valve Springs will also fit the Harley Davidson V-Rod Twin Cam Engine and for that reason these springs are sold in sets of 8. Designed to fit stock seats on both engines.
*Sold in Sets of 8 - 4.6L Applications Require a Quanity of 4.
| Part Number |
PAC-1223 |
| Large End OD |
1.105" |
Large End ID
|
0.742" |
| Small End OD |
0.943" |
| Small End ID |
0.580" |
Seat Pressure
|
90lbs @ 1.470" |
| Open Pressue |
252lbs @ 0.970" |
| Spring Rate |
324 lbs /in |
Coil Bind
|
0.900" |
| Max Lift |
0.500" |
| Titanium Retainers |
R512 - 4.6L Only
R445 - V-Rod Only
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| Steel Retainers |
R312 - 4.6L Only
R342 - V-Rod Only |
| Spring Seats |
N/A |
| Spring Cups |
N/A |
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