[5.0mustangaod]

Can I use the stock valve springs with an E303 cam on stock E7TE heads??? :headscratch:

 

[apollo12]

you must upgrade the springs or bad things will happen!

 

[Joel5.0]

Any.... any camshaft upgrade requires a valve train upgrade. Engine 101 basics.

 

[cindys_sn95]

the stock springs are hardly enough for the stock cam. yes, upgrade!

 

[RLG34750]

you must upgrade the springs or bad things will happen!

Any.... any camshaft upgrade requires a valve train upgrade. Engine 101 basics.

the stock springs are hardly enough for the stock cam. yes, upgrade!

I think that covers it.......

 

[EagleAutosports]

Yup, that covers it all. If you're going through the work of a cam swap, you don't want to scrimp on the springs or take shortcuts.

 

[Masshole]

Trick flow sells a good upgrade kit, which I stuck in. I had no problems with my springs with an e cam, though I didnt over rev it either. Valve float bad.......

 

[new8514]

I have 10,000 miles on mine with stock springs and E cam.... no problems yet

My springs checked out okay on the rebuilt so I left them in

 

[88351stang]

agree with new8514. I have had two different mustangs with E303 cams and stock E7 heads and springs. I put over 100,000 miles on both of them that way.

There are times when different cams require new springs, but the E cam is not radical enough to justify it for me.

 

[apollo12]

good luck running stock springs with the e 303 cam , when you drop a valve let us know, valve float then dropped valve, just a matter of time!

 

[89coupe]

Just because you havent have problems doesnt mean they are not there.

 

[new8514]

I don't see myself floating any valves, my car doesn't see over 5000 rpm and wont until it gets heads and an intake, and then it will get new springs....

 

[justin73]

I used stock springs with a E cam and had no problems at all.

 

[Vinnietbird]

I have 10,000 miles on mine with stock springs and E cam.... no problems yet

My springs checked out okay on the rebuilt so I left them in

Me too.Mine are fine so far.E303,stock springs,AND,flat top pistons.

I'm living on the edge.