Valve Spring Kit for Ford GT40 / GT40P Cylinder Head

Complete drop-in Valve Spring Kit for Ford GT40 / GT40P Cylinder Heads with a .570" max lift. 

In stock
SKU
GT40CS-KIT
$199.75

COMP Cams GT40 Drop-in Valve Spring Kit is designed to maximize the potential of GT40 and GT40P Cylinder Heads when using a flat tappet camshaft. This kit allows up to .570" lift and provides spring rates that can handle significantly more aggressive lobe profiles. This kit has been developed to make your valve train upgrade as easy as possible by combining quality components in a package that does not require any machining! These components will drop right onto stock GT40 & GT40P cylinder heads.

Spring Height (in)Load (lbs)
1.85089
1.800110
1.750131
1.700152
1.650172
1.600193
1.550214
1.500235
1.450256
1.400276
1.350297
1.300318
1.250339
1.200360

Open Height: 1.300 in
Max Lift: 0.570"
Installed Height: 1.8"
Coil Bind Height: 1.170"
O.D. of Outer: 1.486"
I.D. of Inner: N/A
I.D. of Outer: 1.052"
Spring Style: Single
Spring Rate: 416 (lbs/in)
Retainer Material: Chromoly
Valve Stem Size: 11/32"
Valve Lock Type: 10°
Spring Seats Type: Non-Integrated
Valve Seals Type: Positive Stop
Number of Springs Per Valve: 1
Load at Installed Height: 110 (lbs)
Load at Open Height: 318 (lbs)
Valve Spring Finish: Raw
Valve Stem Seal Material: Viton
Spring Seat OD: N/A
Spring Seat Step Diameter: N/A
Machine Work Required: No