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PAC Racing Springs PAC-1207X RPM Series

Enhance your valvetrain stability with the PAC Racing Springs PAC-1207X. This RPM Series round wire dual valve spring is specifically engineered for high-performance GM LS engine applications. Designed to handle aggressive camshaft profiles up to .650" lift, these springs offer superior fatigue life and load retention compared to standard OEM offerings.

TECHNICAL SPECIFICATIONS

• Max Lift: .650"
• Install Height: 1.800" @ 155 lbs
• Open Height: 1.150" @ 400 lbs
• Outer Spring OD: 1.290"
• Inner Spring ID: 0.655"
• Spring Rate: 377 lbs/in
• Coil Bind: 1.080"

VEHICLE COMPATIBILITY

Optimized for GM LS-Series engines including LS1, LS2, LS3, LS6, L92, L99, LQ4, and LQ9 commonly found in:

• 1997-2013 Chevrolet Corvette
• 1998-2015 Chevrolet Camaro
• 1999-2014 Chevrolet Silverado / GMC Sierra (V8 Models)
• 2004-2006 Pontiac GTO
• 1998-2002 Pontiac Firebird / Trans Am

PRODUCT FEATURES

• RPM Series: Performance-driven design for high-revving LS powerplants.
• Round Wire Dual Design: Provides critical dampening and valvetrain control.
• Direct LS Fitment: Fits standard LS spring pockets without machining.
• USA Made: Manufactured with premium materials for maximum durability.