seriously.... what intake manifold for my 408?
07-11-2015, 12:38 PM
#21
TECH Senior Member
iTrader: (2)
Join Date: Aug 2012
Location: Howell & Fenton MI
Posts: 11,145
Likes: 0
Received 15 Likes
on
15 Posts
I'll give my recent experience in changing to a Fast 92 from my LS6. I don't have any before and after dyno numbers, but what I most definitely noticed is a more powerful and broader mid range to car. It almost seems as if the car just climbs more smoothly and effortlessly. At first I wasnt,sure if it,was just me or what, until 2 other people (who know my car very well) noticed basically the same thing. Did it make more hp on the dyno?? Don't know,and don't care....it simply pulls better and there is no denying that. Just wanted to throw that out there
07-11-2015, 08:20 PM
#22
Looks like this when its all said and done. Guy by the name of Rick Crawford does it or Rhino@GPI is another. same design same power just pick whoever is closest. The ls3 intake doesnt take too kindly to porting so not much is really done to them. Adding these rods is the only one I see consistently gain hp and tq on bolt on or cammed ls3's. Its not terribly expensive (300) and will be right on par or exceed any fast available.
07-12-2015, 12:19 AM
#23
Moderator
iTrader: (4)
Join Date: Jul 2014
Location: My own internal universe
Posts: 10,446
Received 1,835 Likes
on
1,145 Posts
looks to me like he was saying keeping the ls6 and not going FAST was a mistake. I think he agrees he should have the fast.
