4BT Springs and Retainers


SKU: 07-s-007 Categories: , Tag:


When running higher rpm, higher boost and/or a more aggressive cam, valve springs need to be upgraded. our 12v springs feature 165# seat pressure, chromoly retainers and 10 degree locks. Our 24v Springs feature 103# seat pressure and chromoly retainers for use with the stock locks.

Additional information

Engine Model


Engine Type

Competition, Street

Type (Street Only)


Competition Products