PAC 1225 Solid Roller Valve Springs

Valve Springs


PAC 1225 Solid Roller Valve Springs


PAC Racing 1200 Series valve springs are great as replacement parts--or for pushing above and beyond the performance of OEM engines. They're selected when you're upgrading camshafts or doing engine rebuilds. The 1200 series valve springs 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.

1225 Series Dual Valve Springs

Smaller diameter Dual Drag Race Spring

Mass (g) 152.0
Outer Spring I.D. (in) 1.100
Outer Spring O.D. (in) 1.550
Middle Spring I.D. (in) N/A
Inside Spring I.D. (in) 0.788
Install Load (LB) 250
Install Height (in) 2.000
Open Load (LB) 765
Open Height (in) 1.200
Coil Bind Max (in) 1.150
Lift Max (in) 0.800
Freq. Outer (CPM) 29368
Freq. Middle (CPM) N/A
Freq. Inner (CPM) 28294
Damper No

SKU: 773

Price: $369.99
Sale Price: $310.08
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