LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Edelbrock ProFlo XT on an LT1?

Thread Tools
 
Search this Thread
 
Old Jun 6, 2010 | 10:32 PM
  #1  
crazydavez28's Avatar
Thread Starter
On The Tree
iTrader: (5)
 
Joined: Sep 2007
Posts: 144
Likes: 0
From: Hutchinson,KS
Default Edelbrock ProFlo XT on an LT1?

Has anybody used this intake on an LT1? I wanted to do a single plane set up and stumbled across this manifold and it looked interesting. Not a bad deal if it actually works, eliminates the need for an intake elbow so it really might be cheaper.


Gonna do the 24x LS computer conversion and try to push 8k.
Reply
Old Jun 6, 2010 | 10:48 PM
  #2  
RamAir95TA's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: May 2005
Posts: 9,467
Likes: 8
From: South Jersey
Default

That's a dual-plane manifold...if you're going to spin 8k (what are you running exactly?), then you'll want to stick with the single plane.
Reply
Old Jun 6, 2010 | 10:57 PM
  #3  
Wicked94Z's Avatar
10 Second Club
iTrader: (26)
 
Joined: Jul 2005
Posts: 3,725
Likes: 1
From: Spokane, Wa
Default

Originally Posted by RamAir95TA
That's a dual-plane manifold...if you're going to spin 8k (what are you running exactly?), then you'll want to stick with the single plane.
isn't that like an efi box style manifold?
Reply
Old Jun 6, 2010 | 11:08 PM
  #4  
RamAir95TA's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: May 2005
Posts: 9,467
Likes: 8
From: South Jersey
Default

Yeah, but technically (IMO) it still uses the same principles of a dual-plane manifold.
Reply
Old Jun 6, 2010 | 11:20 PM
  #5  
robsquikz28's Avatar
TECH Veteran
iTrader: (246)
 
Joined: Mar 2008
Posts: 4,984
Likes: 1
From: Chicago/Crown point
Default

Noone uses it because there are better alternatives.
Reply
Old Jun 6, 2010 | 11:28 PM
  #6  
Wicked94Z's Avatar
10 Second Club
iTrader: (26)
 
Joined: Jul 2005
Posts: 3,725
Likes: 1
From: Spokane, Wa
Default

it's not a dual plane design, all runners use a common plenum. i'm just curious why the OP thinks the elimination of an elbow makes it a cheaper alternative? Usually when you're looking to build a motor that makes good power at 8000 rpm, cheaper alternatives are left out of the picture.
Reply
Old Jun 7, 2010 | 05:30 AM
  #7  
FASTFATBOY's Avatar
TECH Veteran
20 Year Member
iTrader: (23)
 
Joined: Nov 2002
Posts: 4,861
Likes: 2
From: Mobile Ala
Default

Why do you need to spin it to 8000? Is it a 283?
Reply
Old Jun 7, 2010 | 01:52 PM
  #8  
Wicked94Z's Avatar
10 Second Club
iTrader: (26)
 
Joined: Jul 2005
Posts: 3,725
Likes: 1
From: Spokane, Wa
Default

Originally Posted by FASTFATBOY
Why do you need to spin it to 8000? Is it a 283?
no he must have watched that red Ai car spinning to 8k on the dyno
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Jun 7, 2010 | 03:01 PM
  #9  
duh's Avatar
duh
TECH Fanatic
iTrader: (16)
 
Joined: Apr 2009
Posts: 1,501
Likes: 2
From: burbs of chi-town
Default

make a 331 and spin it to 10K......thats fun, just doesn't sound right coming from an sbc
Reply
Old Jun 7, 2010 | 05:59 PM
  #10  
crazydavez28's Avatar
Thread Starter
On The Tree
iTrader: (5)
 
Joined: Sep 2007
Posts: 144
Likes: 0
From: Hutchinson,KS
Default

8k?
I just wanna make people wonder what's going on in that old LT1.
Also, the cam i'm gonna use is just a shade smaller than the GM847 which just starts to kick in at high RPM. (maybe won't actually get 8k but i wanna use all of that cam). i just feel really limited by the 7200 limits of the LT1 PCM and I don't wanna go 383

it's not a dual plane design, all runners use a common plenum.
this is what I was wanting to know. not looking to spend all my dollars on an intake elbow and manifold etc. if I can do the same thing with one manifold.

I'm sure there are some drawbacks to the proflo although I'm still curious if it's capable of supporting that rpm range with the 90mm TB

maybe I should ask the sbc crowd it may be more common on gen I sb
Reply
Old Jun 7, 2010 | 08:08 PM
  #11  
Wicked94Z's Avatar
10 Second Club
iTrader: (26)
 
Joined: Jul 2005
Posts: 3,725
Likes: 1
From: Spokane, Wa
Default

you're in way over your head based on your last post. a super vic will have better distribution and make more power than that pro-flo manifold. neither are necessary at the rpm level you'll be turning with a gm 847 sized cam.
Reply
Old Jun 7, 2010 | 10:34 PM
  #12  
FASTFATBOY's Avatar
TECH Veteran
20 Year Member
iTrader: (23)
 
Joined: Nov 2002
Posts: 4,861
Likes: 2
From: Mobile Ala
Default

Originally Posted by crazydavez28
8k?
I just wanna make people wonder what's going on in that old LT1.
Also, the cam i'm gonna use is just a shade smaller than the GM847 which just starts to kick in at high RPM. (maybe won't actually get 8k but i wanna use all of that cam). i just feel really limited by the 7200 limits of the LT1 PCM and I don't wanna go 383



this is what I was wanting to know. not looking to spend all my dollars on an intake elbow and manifold etc. if I can do the same thing with one manifold.

I'm sure there are some drawbacks to the proflo although I'm still curious if it's capable of supporting that rpm range with the 90mm TB

maybe I should ask the sbc crowd it may be more common on gen I sb

You need to do ALOT more homework.
Reply
Old Jun 8, 2010 | 07:17 PM
  #13  
crazydavez28's Avatar
Thread Starter
On The Tree
iTrader: (5)
 
Joined: Sep 2007
Posts: 144
Likes: 0
From: Hutchinson,KS
Default

Originally Posted by FASTFATBOY
You need to do ALOT more homework.
bingo, i'm a long way from actually buying stuff yet. just wanted to know if the proflo was equivalent to a single plane, apparently not. i've just never heard anything good or bad about it.

I wanna do the single plane, elbow, and 90mm with the LSX pcm. You have some experience with this yes?

Reason for mods:
I have a buddy putting an LQ9 6.0 in his M6 T/A with L92 heads and intake etc. I'd really like to beat him with my 355 LT1.
Reply
Old Jun 8, 2010 | 07:35 PM
  #14  
draggin97s10's Avatar
TECH Fanatic
iTrader: (2)
 
Joined: Mar 2009
Posts: 1,471
Likes: 0
Default

good luck
Reply




All times are GMT -5. The time now is 05:27 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE