Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Dorman ls6 intake 615-900

Thread Tools
 
Search this Thread
 
Old Jan 27, 2015 | 06:20 AM
  #1  
ToxicWS6's Avatar
Thread Starter
TECH Resident
 
Joined: Jul 2010
Posts: 905
Likes: 0
From: VA
Default Dorman ls6 intake 615-900

ive done a bunch of searching and a lot of the posts are somewhat old and or have the same info, ive seen the onallcylinders page that shows the dyno comparison to the gm ls6 and the fast 90, and ive heard how its basically a 2 peice fast 78 design re done a little to look gm factory, with that being said, im looking at getting one cause $600-700 for an original ls6 is ridiculous imo and something has to be better then my factory ls1 one. my concerns are though is im a turbo car and this being a 2 piece intake and having those burst disc things on the bottom, would this not work for a turbo application? or be a bad idea and i should just stick with the ls1 intake for now?

only reason im not getting an ls2 or etc is its not in the budget atm as i would have to get new rails and TB with an ls2 or something aftermarket thats not an ls1/6 intake manifold, when the time and money comes next year or 2 i plan on doing ls3 heads and intake with 92 tb, just not in the budget atm but a $300 intake is lol
Reply
Old Jan 27, 2015 | 09:41 AM
  #2  
jrpimp00's Avatar
TECH Fanatic
20 Year Member
Photogenic
Photoriffic
iTrader: (17)
 
Joined: Jan 2004
Posts: 1,082
Likes: 1
From: Fayetteville, NC
Default

Why not a used ls6? they normally go from $275-400 on here. I got one off of here for $250 back in 08
Reply
Old Jan 27, 2015 | 10:38 AM
  #3  
ToxicWS6's Avatar
Thread Starter
TECH Resident
 
Joined: Jul 2010
Posts: 905
Likes: 0
From: VA
Default

i got one back in 2010 for $300, but they dont exist or rarly do for that price anymore, ive been lookig and havnt found one under $600 ish since i blew mine up my old ls6 manifold 1.5-2 years ago
Reply
Old Jan 27, 2015 | 12:39 PM
  #4  
ULTIMATEORANGESS's Avatar
TECH Senior Member
20 Year Member
iTrader: (4)
 
Joined: Mar 2003
Posts: 10,985
Likes: 23
From: eatontown,nj
Default

wow,i need to invest in who makes ls6 intakes.
Reply
Old Jan 27, 2015 | 01:10 PM
  #5  
redbird555's Avatar
TECH Veteran
iTrader: (14)
 
Joined: Mar 2009
Posts: 4,444
Likes: 9
From: Pompano Beach FL
Default

ya man lol they are getting up there. Idk how the dorman would do with boost. An ls6 intake i'd say bare can be had for 400 nowadays. That may be the way you need to go if you dont want to chance grenading the dorman one. Although I believe its plastic welded together so who knows.

The fasts had problems because they were think and would swell at the gasket under boost. The 102 now is a much better intake to take boost
Reply
Old Jan 27, 2015 | 02:40 PM
  #6  
ToxicWS6's Avatar
Thread Starter
TECH Resident
 
Joined: Jul 2010
Posts: 905
Likes: 0
From: VA
Default

i could do a bare ls6 for $400 isnt bad imo, and i blew my ls6 one up at 12psi and imo was cause the bottom support ribs where shaved off, and yeah the 2 piece design worrys me a bit
Reply
Old Jan 31, 2015 | 09:01 PM
  #7  
DirtyBirdMKE's Avatar
Launching!
 
Joined: Oct 2012
Posts: 287
Likes: 2
Default

PARTSGEEK HAS the doorman ls6 manfold for $311 shipped... put in coupon code SAVE15 (i think) and is under $300 shipped
Reply
Old Feb 1, 2015 | 05:25 AM
  #8  
ToxicWS6's Avatar
Thread Starter
TECH Resident
 
Joined: Jul 2010
Posts: 905
Likes: 0
From: VA
Default

i think im gunna have to do this, thanks for the info/code! i went to work on car a little this weekend and peaked around my ls1 intake with a flash light this time as i was still getting debri out of it and its F**K UP, theres metal chunks all embedded/melted in it and scattered through out every runner when the pistons let go in previous engine (mainly 3 and 4 which i lost on previous engine), looked like a stary night lol, so im gunna give this one a try so you might see a review on it in a month or so lol
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

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

 Verdad Gallardo
story-4

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

 Pouria Savadkouei
story-5

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

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

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

 Verdad Gallardo
Old Feb 1, 2015 | 07:45 AM
  #9  
NemeSS's Avatar
TECH Senior Member
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (127)
 
Joined: Sep 2005
Posts: 6,889
Likes: 9
From: Houston,TX
Default

I wonder how much boost it can take as is. But perhaps opening it and sealing it with good epoxy it may hold up to 15 or more psi
Reply
Old Feb 1, 2015 | 11:28 AM
  #10  
ToxicWS6's Avatar
Thread Starter
TECH Resident
 
Joined: Jul 2010
Posts: 905
Likes: 0
From: VA
Default

plan on running around 12psi max so will see, if it fails at the 2 piece part then ill probably disassemble and try that
Reply
Old Feb 1, 2015 | 02:01 PM
  #11  
MuhThugga's Avatar
TECH Fanatic
15 Year Member
Photogenic
 
Joined: Jul 2007
Posts: 1,802
Likes: 333
From: Wilmington, De
Default

I thought these Dorman intakes had a Fast 78 bottom, but had some Dorman upper design that flowed like absolute dogshit?
Reply
Old Feb 1, 2015 | 02:30 PM
  #12  
ToxicWS6's Avatar
Thread Starter
TECH Resident
 
Joined: Jul 2010
Posts: 905
Likes: 0
From: VA
Default

they were like 2-4 hp off from an LS6 intake, which every one boiled down to being identical to an LS6 in most peoples cases, and yes ive heard there 78 lowers, it cant be worse then an ls1 intake imo unless it blows up lol
Reply
Old Feb 2, 2015 | 04:06 AM
  #13  
02_ramair_ta's Avatar
11 Second Club
15 Year Member
iTrader: (35)
 
Joined: Aug 2006
Posts: 352
Likes: 0
From: Hanford, Ca
Default

If you get it and install it, post info.. I'm in that same situation, picked up a motor and want to go with an ls6 intake, but not wanting to spend 600.00 on used junk.. back in 2006 they were 200-250 tops.. this place had become a mad house.
Reply
Old Feb 2, 2015 | 06:04 AM
  #14  
ToxicWS6's Avatar
Thread Starter
TECH Resident
 
Joined: Jul 2010
Posts: 905
Likes: 0
From: VA
Default

yeah idk what happen lol, yes there great intakes but for an intake that came on at least 50% of the ls cars made its still i a high production factory intake, if i spend over $500 its for a fast or one of the crazy high rise ones imo

and yeah when i get it ill post a thread and put link in here, ill try to get pics, car wont be driving untill another month roughly though do to rebuild of funding to buy this and fuel lines lol
Reply
Old Feb 2, 2015 | 06:29 AM
  #15  
Zmg00camaross's Avatar
10 Second Club
15 Year Member
Photogenic
Photoriffic
Liked
iTrader: (12)
 
Joined: Jun 2009
Posts: 5,069
Likes: 52
From: Missouri
Default

I haven't seen $600 used intake. Real easy if people are asking that much stop buying them. I bought a super clean one for $325 years back. Would never pay 400+ for a ls6 intake.
Reply
Old Feb 2, 2015 | 02:07 PM
  #16  
MuhThugga's Avatar
TECH Fanatic
15 Year Member
Photogenic
 
Joined: Jul 2007
Posts: 1,802
Likes: 333
From: Wilmington, De
Default

Originally Posted by ToxicWS6
they were like 2-4 hp off from an LS6 intake, which every one boiled down to being identical to an LS6 in most peoples cases, and yes ive heard there 78 lowers, it cant be worse then an ls1 intake imo unless it blows up lol
Personally, I think you should step up to a BBK or some other aluminum intake for not much more than the Dorman piece.

Originally Posted by Zmg00camaross
I haven't seen $600 used intake. Real easy if people are asking that much stop buying them. I bought a super clean one for $325 years back. Would never pay 400+ for a ls6 intake.
I bought one with fuel rails for $250 shipped a few months ago.

If they were going for $600, I would be looking at used FASTs.
Reply
Old Feb 2, 2015 | 02:23 PM
  #17  
Inflame's Avatar
Staging Lane
iTrader: (2)
 
Joined: Jul 2014
Posts: 58
Likes: 0
Default

Paid $400 for my LS6 with a Ported TB... Don't overpay!
Reply
Old Feb 2, 2015 | 02:50 PM
  #18  
ToxicWS6's Avatar
Thread Starter
TECH Resident
 
Joined: Jul 2010
Posts: 905
Likes: 0
From: VA
Default

im keeping an eye out for one and so is a friend but.

i had a BBK intake and the boost warped the bottom "inspection plate" and leaked and also cracked where the gasket sits on one of the intake runners
Reply
Old Feb 2, 2015 | 11:55 PM
  #19  
2000z346's Avatar
Registered User
 
Joined: Dec 2014
Posts: 9
Likes: 1
From: Madison in
Default

I've got the dorman on my cam/bolt on 2000 Z28 I'm real happy with it. There was several steps in the ports that I blended and the TB opening is like 73mm! I opened that up as well after a couple hrs of quick port work it looks like a superior intake to a ls6. Jus so u know u hafta do the ls6 coolant tube with block off caps on the back and with it using the fast lower it hits on the valley pan bolt heads. I got a set of M8-25mm long button head cap screws at fastenal for like $3. The dorman does have writing on first 4 runners I smoothed mine and base cleared to match my car
Reply
Old Feb 2, 2015 | 11:59 PM
  #20  
2000z346's Avatar
Registered User
 
Joined: Dec 2014
Posts: 9
Likes: 1
From: Madison in
Default




After paint
Reply



All times are GMT -5. The time now is 08:20 AM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
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-4
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-5
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-6
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-7
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-8
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-9
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