Anyone running the Big Mutha Thumpr's??

[Chris06GT]

Just curious if they made more power than the Stage 2 Thumpr's considering they both have the same lift but different duration.....Also if they can be used with stock heads?? Let me know what you know...

Thanks,
Chris

 

[07samCS]

requires stroker motor and ported heads

 

[Chris06GT]

Yeah I just read that...damn it....lol

 

[fullsayl]

requires stroker motor and ported heads

+1 - I have the Mutha Thumpr's and they perform as advertised. My question would be if you are going to do the heads and stroke the motor, why would you want to keep the stock valve springs?

~Matty