quick gt40p valve spring question

[90LX5spd]

Will the stock valve springs that come on new GT40P heads work with a stock HO roller cam? Thanks.

 

[stykthyn]

no, they will not. get the trick flow gt40 upgrade springs

 

[90LX5spd]

The reason I ask is I noticed 5.0 Resto is selling a top end kit with a Cobra intake, headers, these heads and an E303 cam. They act as though its a bolt on and go affair. I doubted the GT40P heads stock springs would play well with the E cam but was curious if the springs would survive with the tamer stock cam.