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PAC Racing 1200 Series Valve Springs
Valve Spring, 1200 Series, Dual, 1.300 in. Outside Diameter, 408 lb/in., 0.655 in. Inside Diameter, Each
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Overview
Brand:
Manufacturer's Part Number:
PAC-1221
Part Type:
Product Line:
Summit Racing Part Number:
RSC-PAC-1221
Valve Spring Style:
Beehive
Number of Springs Per Valve:
Dual
Outside Diameter of Outer Spring (in.):
1.300 in.
Coil Bind Height (in.):
1.080 in.
Damper Spring Included:
No
Spring Rate (lbs./in.):
408 lbs./in.
Inside Diameter of Outer Spring (in.):
0.895 in.
Inside Diameter of Inner Spring (in.):
0.655 in.
Valve Springs Coated:
No
Quantity:
Sold individually.
Retainers Included:
No
Installed Height (in.):
1.800 in.
Seat Pressure at Installed Height (lbs.):
135 lbs.
Open Height (in.)(application):
1.150
Open Pressure (lbs.):
400 lbs.
Locks Included:
No
Valve Stem Seals Included:
No
Remanufactured:
No
PAC Racing 1200 Series Valve Springs
PAC Racing 1200 Series valve springs are great as replacement parts--or for pushing above and beyond the performance of OEM engines. Select them when you're upgrading camshafts or doing engine rebuilds. The 1200 Series use a premium alloy that outperforms automotive industry standards; and PAC Racing processes the alloy to aerospace shot-peening standards to achieve superior fatigue dependability. This ensures that the springs maintain the load needed to withstand rigors of both street and mild racing applications.
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Some parts are not legal for use in California or other states with similar laws / regulations
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