PAC Racing 1220 Beehive Valve Spring Kit - (#BB3)

This PAC Racing valve spring kit is designed for most big block style cylinder heads with hydraulic roller and hydraulic flat tappet camshaft profiles. This is a replacement for the large and heavy dual springs that most big block heads come equipped with. Some OEM cylinder heads require the spring pockets to be machined to spring locator fitment.

VALVE SPRING KIT CONTENTS:

PAC Racing 1220 Beehive Springs
Proprietary Ovate Wire
155# at 1.880" Installed Height
377# at 1.280" Open pressure
.650” Lift Capable
Chromemoly Steel Spring Retainers
Hardened and Machined Valve Locks
Hardened & Machined Spring Locators
Steel Shell Viton Valve Seals

NOTE: Verification of all spring pocket and installed height parameters is required.

HOW TO ORDER:

1) Choose your valve stem diameter: 11/32" or 5/16" or 8mm

2) Choose your valve seal diameter: .500" or .531" guide top

3) Choose your valve guide diameter: .500" or .563" guide base

The standard spring kit contains lightweight chromemoly retainers but you can upgrade to the optional titanium or tool steel retainers in most applications. Certain aftermarket cylinder heads may require a custom built version of this kit. Email for more information on custom cylinder head applications.

PART NUMBER: PAC-1220-BB3