Supertech/Apocalypse 2V valve springs for stock retainers (drop-in)

For Ford Modular 4.6L and 5.4L engines with PI 2v heads.  These have been used with 20psi without any issues.  We recommend these for most applications not seeing over 30psi.  These are comparable to the PAC 1214x valve springs. Beehive...

Supertech/Apocalypse 4v springs and retainers

This kit includes 32 springs and steel retainers.  These will work for most n/a and boosted setups.These are the next step up from the Supertech Apocalype drop-in springs.  Beehive Single spring OD top 1.102"OD bottom .957"seat pressure...

Supertech/Apocalypse 4v springs for stock retainers (drop-in) single spring

These springs are good for use in most street cars and many race cars.  Good for 30psi, these are an affordable option.Ford Modular 4.6L 4v Beehive Single spring OD 1.075"/.957" 96lbs@1.417" Rate 348lbs/in CB: .866" Designed for use with stock...

Supertech/Apocalypse 4v springs for stock retainers - (32 springs)

This is a set of 32 springs that are good for use in most street cars and many race cars.  They are good for 30psi and are a very affordable option for most boosted and n/a 4v engines.Ford Modular 4.6L 4v Beehive Single spring OD 1.075"/...