PAC Racing RPM Series valve springs were developed using all of the latest advancements from Circle Track and drag racing successes. This valuable, real-life research has been applied to new designs, which allow for a performance increase that exceeds all demands. The springs are made from quality materials and are available in different diameters and pressures to suit your specific camshaft profile.
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PAC 1237x Valve springs
Fantastic price, fantastic springs. If you need something this serious for springs then these are the ones for you.
