FTI-GEN5 Dual Valve Spring Kit
The proper valve springs are one of the most important pieces of a performance engine. Serious street machines, hardcore racers and engine builders of performance cylinder heads now have a brand new, heavy duty usage valve spring, spring retainer, valve lock and seal kit that safely extends engine RPM and boosts performance capability.
This custom built PAC Racing 1222X based valvetrain valve spring kit features precision wound, heat-set, dual valve springs with the required seat and open load pressure plus total spring travel to accommodate cams with modern camshaft lobes with gross valve lifts of up to .700” depending on the installed height. The valve springs contained in each kit are carefully tension matched and all supplied components come complete and ready to install.
Included are CNC machined, chromemoly alloy spring retainers, CAD designed to deliver maximum strength and durability. The hardened and machined spring locators used were designed to accurately locate the inner spring, preventing abrasion and scuffing when using aluminum cylinder heads. Precision machined & hardened steel alloy valve locks are also provided for superior valve stem holding reliability. Premium quality, Viton steel reinforced valve stem seals are included for correct valve stem lubrication and oil control.
The PAC Racing 1222X is an extreme duty valve spring designed for lightweight valvetrain used in a endurance and racing applications.
This spring kit will fit many aftermarket cylinder heads, be sure to note which manufacturer and part number you are using.
HOW TO ORDER:
1) Choose your valve stem diameter: 5/16" - 11/32" - 8mm
2) Keeper Grove: square or radius
3) Choose your valve seal diameter: .500" or .531" guide top
4) Choose your valve guide diameter: .500" or .563" guide base
NOTE: The standard spring kit contains lightweight chromemoly retainers but you can upgrade to the optional titanium retainers. Certain aftermarket cylinder heads may require a custom built version of this kit. Email for more information on custom cylinder head applications.
GEN5-DVS VALVE SPRING KIT CONTENTS:
PAC Racing 1222X Dual Valve Springs
1.300” Diameter Spring
180# at 1.800”
.700” Lift Capable
Chromemoly Steel Retainers
Hardened & Machined Valve Locks
Hardened & Machined Spring Locators
Steel Shell Viton Valve Seals
PART NUMBER: FTI-GEN5-DVS-Kit
