LS1 Intake Face Dimensions

General engine tech -- Drag Racing to Circle Track

Moderator: Team

Post Reply
Pontiac310
New Member
New Member
Posts: 7
Joined: Thu Apr 12, 2018 7:10 am

LS1 Intake Face Dimensions

Post by Pontiac310 » Wed Sep 12, 2018 8:26 am

Would anyone have any data on the intake port dimensions, port layout (distances between port to port and face angle) and intake bolt locations of a cathedral port LS1. Looking at doing a custom intake and this data would greatly help the cause. Attached photo for example purposes.

Cheers
You do not have the required permissions to view the files attached to this post.

Walter R. Malik
Guru
Guru
Posts: 4013
Joined: Tue Jul 24, 2012 11:15 am
Location: Roseville, Michigan (just north of Detroit)
Contact:

Re: LS1 Intake Face Dimensions

Post by Walter R. Malik » Sat Sep 15, 2018 11:20 pm

LS bore spacing is 4.4", (111.8mm).
http://www.rmcompetition.com
Specialty engine building at its finest.

Pontiac310
New Member
New Member
Posts: 7
Joined: Thu Apr 12, 2018 7:10 am

Re: LS1 Intake Face Dimensions

Post by Pontiac310 » Sun Sep 16, 2018 7:47 am

Aware of that. But not the dimensions I am after...

Walter R. Malik
Guru
Guru
Posts: 4013
Joined: Tue Jul 24, 2012 11:15 am
Location: Roseville, Michigan (just north of Detroit)
Contact:

Re: LS1 Intake Face Dimensions

Post by Walter R. Malik » Sun Sep 16, 2018 12:32 pm

Pontiac310 wrote:
Sun Sep 16, 2018 7:47 am
Aware of that. But not the dimensions I am after...
If all the ports are the same then the distance between them would also be 4.4" at the vertical center-line; you need to locate only one.

Sorry to be a nuisance; it will never happen again.
http://www.rmcompetition.com
Specialty engine building at its finest.

Pontiac310
New Member
New Member
Posts: 7
Joined: Thu Apr 12, 2018 7:10 am

Re: LS1 Intake Face Dimensions

Post by Pontiac310 » Mon Sep 17, 2018 2:05 am

Walter R. Malik wrote:
Sun Sep 16, 2018 12:32 pm
Pontiac310 wrote:
Sun Sep 16, 2018 7:47 am
Aware of that. But not the dimensions I am after...
If all the ports are the same then the distance between them would also be 4.4" at the vertical center-line; you need to locate only one.

Sorry to be a nuisance; it will never happen again.
Sorry didn't mean to come across sarcastic. I do understand your thought process but just wanted the exact measurements to be certain that they were not designed such that the port centre line is not on the bore centre line. Sometimes this assumption can catch you out. Thanks again

Post Reply