Stock hemi spring question.

[Flanson]

I have mostly stock predator hemi I've removed governor and replace head gasket with .010 gasket. My question is will stock valve springs be OK or should I swap out with 18# springs. I'm under the impression stock springs are 10.5#.

 

[Kart43]

What are you using the engine for, what is your intended RPM range?

 

[Flanson]

What are you using the engine for, what is your intended RPM range?

Dirt oval racing predator 350# as for RPM I'm not sure. Initially I was shooting for 4800-4900 before removing gov and changed gasket. I'm a noob to this and working off forum info and YouTube videos. However I like to double check video info with forum feedback. Video I saw noted that with gov removed it will increase rpm and cause valve/spring vibration with stock springs and it was recommended 18#.

 

[Kart43]

What do your rules specify?

 

[Flanson]

Issue has been resolved.

 

[flattop1]

Issue has been resolved.

How or what resolved it ?

 

[Flanson]

How or what resolved it ?

A call to Dover Power. Those guys are rockstars!!!!

 

[flattop1]

Care to share the answer ?
10.8 or 18 lb springs , maybe something totally different.

 

[bsagreg]

Stock Predator 212 hemi head have 18 lb springs.