The PAC-R312-16 is a 300 Series beehive retainer sized for Ford Modular V8 applications, built from 4140 aerospace-grade chromoly steel rather than a lighter titanium alloy. That makes it a cost-effective choice for stock-to-mildly-modified rebuilds where the added strength of a 400 or 500 Series retainer isn't needed, while still getting PAC's in-house heat treating and a black oxide finish for corrosion resistance.

PAC Racing Springs PAC-R312-16 300 Series Beehive Valve Spring Retainer Set Features:

• Fits Ford Modular V8 beehive valve spring applications
• 0.865 in. outside diameter with a 7 degree lock angle
• 4140 aerospace-grade chromoly steel construction
• Heat-treated for wear resistance and increased tensile strength
• Black oxide coating for a rust-resistant finish