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There are multiple reasons I picked a 258 intake lobe for my ls7
Seems like a magic number for a 427.
They’re making 800+ the hard way - fitting class rules.
Open things up and there’s power to be gained easier like vacuum pump, bigger head volume, unrestricted lift, unrestricted intake and head porting etc etc
There are multiple reasons I picked a 258 intake lobe for my ls7
Seems like a magic number for a 427.
They’re making 800+ the hard way - fitting class rules.
Open things up and there’s power to be gained easier like vacuum pump, bigger head volume, unrestricted lift, unrestricted intake and head porting etc etc
I noticed that too. Most of the 700 rwhp motors NA seem to be 258 to 264 intake duration. Almost regardless of displacement. 427-454
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