Need Dauntless Exhaust Manifold Spring

I need a new spring, any suggestions where I could get a new one? Thanks
Mark

 

Is it correct in assuming it's the coiled flat-strip spring you are seeking?

 

Yes. I'll check NAPA, it's probably same as most GM engines from that time period.

 

Exhaust Manifold Heat Riser Spring

1967 - 1968 Firebird Exhaust Manifold Heat Riser Flapper Spring --link pic looks similiar

---Some tractors also look like they use a matching spring.