Valve Spring - 1300 Series Drag Race - 740 lb/in Spring Rate - 0.973 in Coil Bind - 1.300 in OD - Set of 16. Please do your own research to confirm this part fits your vehicle. Processing begins as soon as an order has been placed, therefore we cannot change, cancel or modify orders once they have been confirmed. Most e-mails are answered within 24 hours, including weekends and holidays.