Timbren SES Helper Spring Kit Stock Height Front - Rubber - GM Fullsize Truck/SUV 1988-2000 GP230320 moving valves away from cylinder

moving valves away from cylinder wall for improved intake flow

TH350/375 w/ Small Pattern Saturday Night Special Converter

The Magnum Rocker Arm Studs work well in applications with the lifts and spring pressures of performance camshafts

Average AFR (Air/Fuel Ratio)

Timbren SES Helper Spring Kit Stock Height Front - Rubber - GM Fullsize Truck/SUV 1988-2000 GP230320 moving valves away from cylinderProduct Description: Helper Spring Kit SES Stock Height Hardware Included Front Rubber Black GM Fullsize SUV Truck 1988 2001 Timbren was founded in 1965 to advance the ride quality of trucks while towing. Today they manufacture suspension enhancement systems for towing, rubber helper springs, and full trailer suspensions designed for both on and off road uses.