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Charts & Guides for Part Number SUM-174040DP-16
SBC or BBC 1.500 Dual Springs, Advanced S.R. .850 Max Lift @ 275 Lb. seat @ 2.050 Installed, 938 Lb. @ 1.200 Open, 1.130 C.B., 780 Rate, 144g PAC 1330
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Overview
Brand:
Manufacturer's Part Number:
SUM-174040DP-16
Part Type:
Product Line:
Summit Racing Part Number:
SUM-174040DP-16
Item Number:
8527508
UPC:
190861356818
Valve Spring Style:
Standard
Number of Springs Per Valve:
Dual
Maximum Valve Lift (in.):
0.850 in.
Retainers Included:
No
Outside Diameter of Outer Spring (in.):
1.500 in.
Coil Bind Height (in.):
1.130 in.
Damper Spring Included:
No
Spring Rate (lbs./in.):
780 lbs./in.
Inside Diameter of Outer Spring (in.):
1.050 in.
Inside Diameter of Inner Spring (in.):
0.726 in.
Locks Included:
No
Valve Stem Seals Included:
No
Valve Springs Coated:
No
Remanufactured:
No
Quantity:
Sold as a set of 16.
Notes:
Advanced drag solid rollers with 144 gram weight for less combined spring retainer rate. Polished spring.
Installed Height (in.):
2.050 in.
Seat Pressure at Installed Height (lbs.):
275 lbs.
Open Height (in.)(application):
1.200
Open Pressure (lbs.):
938 lbs.
Summit Racing™ Valve Springs
Valve springs are one of the most critical and overlooked components in your engine. They must be matched to your cam in order for the engine to reach its full potential. Summit Racing™ springs are made from high quality steel with precision winding and surface treatments. Special consideration for reduced valvespring and retainer mass ensures stability at high rpm. This reduces valve float, extends the rpm range, and greatly reduces valvetrain wear.
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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