Coilover Spring Black 300lb 1-7/8 x 8

The AFCO Racing Products Coilover Spring Black 300lb 1-7/8 x 8 represents a critical suspension upgrade for track-focused builders and performance enthusiasts pursuing precise handling control. As a dedicated coilover spring, this component is engineered for vehicles requiring fine-tuned ride height adjustment and spring rate customization independent of dampers. Whether you're building a road-course competitor, autocross platform, or street-performance machine, AFCO's coilover spring isolates spring compliance from shock geometry, allowing you to dial in corner weights and chassis balance with surgical accuracy.

This black coilover spring delivers a 300-pound spring rate with 1-7/8 inch inside diameter and 8-inch free length, dimensions that align with common double-adjustable damper bodies used in performance suspension systems. The 300lb/inch rate sits in the mid-range for street-to-track duty, providing sufficient load support for weight transfer control without requiring extreme preload or generating excessive harshness on marginal road surfaces. AFCO Racing's manufacturing process ensures consistent material properties and proper stress-relief characteristics, critical factors that prevent premature sagging or loss of rate after thermal cycling during extended track sessions.

This spring suits builders upgrading existing double-adjustable coilover kits or constructing custom suspension assemblies from component-level parts. Compatibility depends on your damper body's 1-7/8 inch bore diameter and spring seat design—verify measurements before purchase to ensure proper seating and preload range. Typical applications include road-racing setups, time-attack builds, and high-performance street cars where independent spring rate tuning enables baseline handling optimization without full coilover replacement, making this spring an economical path to suspension refinement.