Charts & Guides for Part Number TFS-16521-16
Trick Flow® by PAC Racing Dual Valve Springs TFS-16521-16
Part Number: TFS-16521-16
Trick Flow® by PAC Racing Dual Valve Springs
Valve Springs, PAC Racing, Dual, 1.100 in. Outside Diameter, 233 lbs./in. Rate, .850 in. Coil Bind, Set of 16
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Estimated Ship Date from Ohio: Today
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Overview
Brand:
Manufacturer's Part Number:
TFS-16521-16
Part Type:
Product Line:
Summit Racing Part Number:
TFS-16521-16
UPC:
842645100512
Valve Spring Style:
Standard
Number of Springs Per Valve:
Dual
Retainers Included:
No
Outside Diameter of Outer Spring (in.):
1.100 in.
Coil Bind Height (in.):
0.850 in.
Damper Spring Included:
No
Spring Rate (lbs./in.):
233 lbs./in.
Inside Diameter of Outer Spring (in.):
0.820 in.
Inside Diameter of Inner Spring (in.):
0.620 in.
Locks Included:
No
Valve Stem Seals Included:
No
Valve Springs Coated:
No
Remanufactured:
No
Quantity:
Sold as a set of 16.
Notes:
High load valve spring developed for Ford 4.6L/5.4L 2V cylinder heads. 8,000+ RPM capacity; enhanced surface finish for increased endurance.
Installed Height (in.):
1.500 in.
Seat Pressure at Installed Height (lbs.):
150 lbs.
Open Height (in.)(application):
0.900
Open Pressure (lbs.):
290 lbs.
Trick Flow® by PAC Racing Dual Valve Springs
Trick Flow by PAC Racing Dual Valve Springs are manufactured to Trick Flow’s rigorous, world-class standards. Every spring is CNC coiled from high tensile-strength, extra-durable Pacaloy™ chrome-silicon steel and double shot-peened beyond Aerospace Material Specifications (AMS) reliability criteria. These dual PAC springs are specifically designed for cams with aggressive profiles, and are available with damper coils for extra spring surge prevention.
Required Parts
Trick Flow Specialties TFS-52900424 - Trick Flow® Steel Valve Spring Retainers
Estimated Ship Date: Today
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