Eibach Bump Spring 2" O.D. x 2.25" 3000lb 54-2001 455 cid V8 Pontiac engines

455 cid V8 Pontiac engines with a 4

Redesigned cheek pads are more contoured and comfortable than previous ST4 helmets

600'' exhaust valves

and durability in an economical

012 in Groove

Eibach Bump Spring 2" O.D. x 2.25" 3000lb 54-2001 455 cid V8 Pontiac enginesProvides virtually unlimited tuning for dirt or asphalt racers using soft spring set ups. Lightweight and compact to meet the needs of pavement racers, while including the maximum linear travel required by dirt racers. Precision fit cap system is compatible with 1 2" or 5 8" shaft sizes. Maximum Travel in All Rates with Repeatable Performance Block and Sag Resistant Increases Aero Efficiency, Grip and Control at the Limit Made By Eibach in the U. S.