FED/PAC LS DUAL SPRING KIT .700" LIFT
FED/PAC LS DUAL SPRING KIT .700" LIFT

Frankenstein Engine Dynamics

FED/PAC LS DUAL SPRING KIT .700" LIFT

$399.00
Cylinder Head and Guide:OEM .505 Powder Metal Guide
Quantity:

The FED/PAC Dual .700 spring kit is a great option for LS aftermarket performance engines. This spring kit works great for high-RPM N/A power and boosted setups. Frankenstein and PAC Racing worked together to bring a very versatile spring that outperforms the typical polished .660 springs on the market. We offer this spring kit for stock valve guide (.505) and bronze guide (.565) applications. 

These use a high-grade titanium retainer, black oxide steel locator, and 7mm GM valve locks. Our spring kit is a drop-in for stock heads and aftermarket heads.

Kit includes:

FED/PAC .700 dual spring (16)

GM LS locks (32)

Titanium retainers (16)

Locators for stock or bronze guides (16)

GM 805VS valve seals (16)

Spring specs:

Max Valve Lift: .700" 

Installed Height: 1.780"

Seat Pressure: 164 lbs @ 1.780"

Open Pressure: 480 lbs @ 1.080"

Spring Rate: 455 lbs/in

Coil Bind Height: .984”

O.D.: 1.300"

Outer I.D.: .950"

Inner I.D.: .690”