GT40 Irons, spring question, another one!

[fidstang]

I have done the search already but can't find the info I am looking for. Do the cobra GT40 irons come with dual springs stock for Ford or is it just a dampener for harmonics?

 

[rd]

I think it is just a damper. I have a set of SVO iron GT40's on my 79. They have decent springs.

I have 94 Lightning heads on my 82, and they came with stock type springs, with rotators on the exhausts!

 

[RYC CUKR]

They are just single spring w/a dampner.

 

[2002BLGT]

the old iron SVOs had single with damper , the stock Gt40s on the cobras, lightnings and explorers have stock springs with rotators , same as the E7s , the trickflow OEM upgrade kit is about the all out best replacement you can get without machine work .....