what diameter is LS1 fuel pump? - Team Camaro Tech
EFI in your modern Classic EFI conversions in early Camaros

 
LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old Oct 6th, 12, 12:13 PM Thread Starter
Tech Team
Craig
 
Join Date: Aug 2007
Location: Michigan
Posts: 48
what diameter is LS1 fuel pump?

Hey all. I thought I read on here before that you could use an LS fuel pump with older EFI tanks. I'm looking at a mid80's cutlass tank. I think they had EFI. Anyone have the diameter of an LS1 fuel pump module so I can see if it fits? Thanks!
wgearhead67 is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old Oct 6th, 12, 12:34 PM
Moderator
John
 
Vega$69's Avatar
 
Join Date: Sep 2010
Location: Vegas NV/Wesley Chapel FL
Posts: 13,356
Garage
Re: what diameter is LS1 fuel pump?

Quote:
Originally Posted by wgearhead67 View Post
Hey all. I thought I read on here before that you could use an LS fuel pump with older EFI tanks. I'm looking at a mid80's cutlass tank. I think they had EFI. Anyone have the diameter of an LS1 fuel pump module so I can see if it fits? Thanks!
Different cars and different years have different fuel pumps. Corvette, Camaro all different,

Pre 2000 different then after.

What exactly are you trying to do?

2017 Corvette ZO6 with ZO7 Option
66 Chevelle Protour LS3/525(SOLD AT Mecum 2018)
69 SS396 Cortez Silver(SOLD)
69 Z28(Sold)
69 Pro Tour - LS3/T56
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
(SOLD)
69 Pro Tour - LS7/T56 (SOLD)
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

69 Z28/RS Tribute355/5 Speed (SOLD)
69 RS Clone 427/TH400 (SOLD)
67 RSZZ502/5 Speed (SOLD)
69 Camaro 406 SBC/TH400 (SOLD)
Vega$69 is offline  
post #3 of 4 (permalink) Old Oct 6th, 12, 01:42 PM Thread Starter
Tech Team
Craig
 
Join Date: Aug 2007
Location: Michigan
Posts: 48
Re: what diameter is LS1 fuel pump?

Yeah I had read there were pressure differences with earlier EFI and that the pumps vary some by application, but I was wondering if the diameters and lock mechanism were the same (figuring the length of pump assembly might have to be altered).

I'm putting an LS1/T56 in a 67 Camaro. I have read about people sumping their original tanks and using an external pump, but I don't see a robust way to mount the pump lower than the tank as the tank already sits so low in car. I've read about guys welding the new in-tank pump interface to the top of their tank and all of the sumping and starvation issues they have. Then of course there are the large number of folks that buy the aftermarket EFI tanks, and it seems they all have issues (and costs ranging $600-$1200 or more). I would really like to avoid $1200 for a fuel tank.

So I was thinking an older OEM tank probably has the sumping and baffling that would work. Came across this mid-80s Olds tank that is about the same size as the 1st gen tank and even has the inlet in the rear, so was considering it. That's what prompted the question...

Thanks for the quick response and interest!!
wgearhead67 is offline  
 
post #4 of 4 (permalink) Old Nov 3rd, 12, 01:22 PM
Senior Tech
 
Join Date: Aug 2008
Location: san jose
Posts: 102
Re: what diameter is LS1 fuel pump?

I bought a repro tank and had a friend tig weld in a recessed mounting pad for this: http://www.tanksinc.com/index.cfm/pa...prod/prd84.htm

While at it, he also added a recessed mounting pad for an autometer universal fuel sender.

I couldn't justify a $1000+ tank so went this route for around $400. The idea was if this didn't work out I'd pony up for a big $$ tank but so far so good.

It's been running since January with a couple thousand miles on it and haven't run into any problems. I don't autocross it or race it so it doesn't see super hard cornering, though with that 'pool' the pump sits in I'm not sure it would encounter any starvation.

67 with ls1

67 rs mutt
fool injected is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome