Intake Manifold Swap
Thread Starter
Burning Brakes
Joined: Aug 2007
Posts: 866
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From: Madison Wisconsin
Intake Manifold Swap
Just out of curiosity. I've been really considering swapping my LS1 intake to the LS6 or the FAST (Which is the best HP/$?). But I was wondering what ALL would I need for the installation to go smoothly? I've been contemplating buying an intake off someone from this site but I need some more info. Thanks for the help.
Le Mans Master
Joined: Jan 2001
Posts: 5,786
Likes: 6
From: Lafayette Colorado
Go with the LS6 intake as the FAST intake will be a waste of money unless you have a large CID motor. Plus with the FAST intake you will need to buy a new throttle also. With the LS6 intake, you will need a new coolant crossover set. They are pretty cheap, like $20 or so.
Keith
Keith
Melting Slicks
Joined: Sep 2006
Posts: 2,721
Likes: 104
From: Florida
Melting Slicks
Joined: Jul 2006
Posts: 2,088
Likes: 2
From: tampa florida
Just out of curiosity. I've been really considering swapping my LS1 intake to the LS6 or the FAST (Which is the best HP/$?). But I was wondering what ALL would I need for the installation to go smoothly? I've been contemplating buying an intake off someone from this site but I need some more info. Thanks for the help.
Last edited by Brad@RevXtremeAutoSports; Aug 31, 2007 at 06:17 PM.
Le Mans Master
Joined: Nov 2003
Posts: 8,004
Likes: 250
From: Tampa Fl
St. Jude Donor '12-'13-'14
Go with the LS6 intake as the FAST intake will be a waste of money unless you have a large CID motor. Plus with the FAST intake you will need to buy a new throttle also. With the LS6 intake, you will need a new coolant crossover set. They are pretty cheap, like $20 or so.
Keith
Keith
That's not correct
Former Vendor
Joined: Mar 2004
Posts: 1,518
Likes: 7
From: Valencia CA
Exactly right Phil....(Kromberg's statement concerning the FAST is not accurate....but a very common misnomer on these message boards)
Ive posted enough on this topic to fill a small phone book.
Use the search feature or just look under my screen name at other posts I have made concerning this topic. The FAST will make more HP in any application its applied....and a properly ported FAST will make double that. The key is good flowing heads to get the most from the swap (20-25 RWHP with a ported FAST and good heads), but even a bonestock 346 CID engine will show 10-15RWHP over an LS6 baseline (with the ported FAST)....add 5 more to that if you have an LS1 intake.
Tony
Ive posted enough on this topic to fill a small phone book.
Use the search feature or just look under my screen name at other posts I have made concerning this topic. The FAST will make more HP in any application its applied....and a properly ported FAST will make double that. The key is good flowing heads to get the most from the swap (20-25 RWHP with a ported FAST and good heads), but even a bonestock 346 CID engine will show 10-15RWHP over an LS6 baseline (with the ported FAST)....add 5 more to that if you have an LS1 intake.
Tony
Last edited by Tony Mamo @ AFR; Sep 1, 2007 at 03:23 PM.
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Le Mans Master
Joined: Aug 2001
Posts: 8,145
Likes: 1
From: Bradenton FLORIDA
Exactly right Phil....(Kromberg's statement concerning the FAST is not accurate....but a very common misnomer on these message boards)
Ive posted enough on this topic to fill a small phone book.
Use the search feature or just look under my screen name at other posts I have made concerning this topic. The FAST will make more HP in any application its applied....and a properly ported FAST will make double that. The key is good flowing heads to get the most from the swap (20-25 RWHP with a ported FAST and good heads), but even a bonestock 346 CID engine will show 10-15RWHP over an LS6 baseline (with the ported FAST)....add 5 more to that if you have an LS1 intake.
Tony
Ive posted enough on this topic to fill a small phone book.
Use the search feature or just look under my screen name at other posts I have made concerning this topic. The FAST will make more HP in any application its applied....and a properly ported FAST will make double that. The key is good flowing heads to get the most from the swap (20-25 RWHP with a ported FAST and good heads), but even a bonestock 346 CID engine will show 10-15RWHP over an LS6 baseline (with the ported FAST)....add 5 more to that if you have an LS1 intake.
Tony
We have seen our best gains with a properly ported FAST.
Racer
Joined: Sep 2000
Posts: 373
Likes: 0
From: Wakefield R.I.
Just out of curiosity. I've been really considering swapping my LS1 intake to the LS6 or the FAST (Which is the best HP/$?). But I was wondering what ALL would I need for the installation to go smoothly? I've been contemplating buying an intake off someone from this site but I need some more info. Thanks for the help.
I would think you should start with a fresh air intake ie Vararam, Callaway Honker etc. then move on to long tube headers.
You need to read and read and then read some more to understand what your changes do and how they effect power to your engine.
I would bet if you do just a Fast 78 you might not be happy with where your power curve moves to(based on your current mods)
This is not a knock on the Fast intake just that I think you have the cart before the horse right now.
All that said if the Fast is a GREAT deal buy it now, send it to Tony for porting and save it until your motor is ready for it.
Good luck