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

LS1 Injectors in an LT1?

Thread Tools
 
Search this Thread
 
Old Mar 5, 2008 | 11:47 AM
  #1  
lt170chevelle's Avatar
Thread Starter
TECH Fanatic
iTrader: (2)
 
Joined: Jul 2006
Posts: 1,153
Likes: 1
From: BS,TX
Default LS1 Injectors in an LT1?

Will LS1 Injectors work on an LT1? I know the fuel rail will have to be spaced up but what about the ohms and fitment?
Reply
Old Mar 5, 2008 | 12:10 PM
  #2  
96lt1m6's Avatar
TECH Junkie
20 Year Member
Photogenic
Photoriffic
iTrader: (31)
 
Joined: Jan 2006
Posts: 3,782
Likes: 3
From: LA$ VEGA$
Default

yes,they work very well.most of the Impala SS guys have done this swap and say the car idles much smoother etc. the clips that hold the injectors in place can be challenging cause they do not line up on the grooves like the Lt1 inj. do but our rails are bolted down and i do not see the need for them.
the Ls1 inj. do run at a higher fuel psi (50-55) but that is not a big deal either.
Reply
Old Mar 5, 2008 | 05:37 PM
  #3  
96capricemgr's Avatar
11 Second Club
iTrader: (1)
 
Joined: Sep 2004
Posts: 11,975
Likes: 15
Default

The 28lbs injectors most common on the LS1s are 28lbs at 58psi, at 43.5 psi the rated LT1 pressure they are just 24lbs basically the same as stock.
I am unaware of this being a popular mod with the Impala guys.
I also believe the LS1 injectors are shorter than the LT1, I can go out to the garage and double check.

I put some 32lbs LS1 injectors on my car because I got them dirt cheap and traded some parts for an adjustable regulator so I could turn up the pressure, currently running them about 50psi/30lbs. I stumbled on cheap and traded parts and made this work, that does NOT mean I recommend others go about it the same way. If the bank account were a little fatter I would probably buy some new matched injectors from Racetronix and put a new stock regulator back on it.

The injector size rating really needs to be considered with pressure. The SVOs are rated at 39psi so they act a little bigger in an LT1 application with stock LT1 pressure. 30lbs act like 31.7 if memory serves.
Reply




All times are GMT -5. The time now is 04:30 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