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RockyJ · 03-27-2009, 03:34 PM

Greg and SS ; Just wanted to say , i revved my 409 to 6800 - 6900rpm with
stock springs shimmed .060 . A few times went way past 7000 accidently ,but never blew her up. They really rev fast after about 5500.

03-27-2009, 03:34 PM	#7
RockyJ Junior Member Join Date: Feb 2008 Posts: 47 Likes: 0 Liked 0 Times in 0 Posts	Re: Back to 409 stuff........ Greg and SS ; Just wanted to say , i revved my 409 to 6800 - 6900rpm with stock springs shimmed .060 . A few times went way past 7000 accidently ,but never blew her up. They really rev fast after about 5500.