Frankman
Poster
Posts: 81
Reg: 09-25-17
|
12-05-20 09:25 AM - Post#2809400
For those of you that have installed ls engines in 55,56,or 57 chevy's is it necessary to do any modifications on the fire wall other than plugging up unneeded holes. I don't think so but just checking, before I get to far and find out that I was wrong. I'm getting the ls engine pretty soon so I want to finish the work on the fire wall.
|
|
 WagonCrazy
"15th Year" Platinum Supporting Member
Posts: 3257
Loc: So Cal
Reg: 06-07-05
|
12-07-20 06:46 AM - Post#2809522
In response to Frankman
On my very modified 57 Nomad, I chose to cut out that rounded firewall and fabricate a new one that looked better with the LS engine. Also made just a bit more room at the back of the engine. But more importantly, you may need to modify the transmission tunnel to get one to fit in there.
Mine has a T56 6 speed, and it's much taller...requiring tunnel sheetmetal modifications.
57 Nomad -LS1 with C4 suspension
59 Apache Fleetside Shortbed BigWindow
|
Edited by WagonCrazy on 12-07-20 06:47 AM. Reason for edit: No reason given.
|
Frankman
Poster
Posts: 81
Reg: 09-25-17
|
12-07-20 05:10 PM - Post#2809587
In response to WagonCrazy
Thank you for your response.
|
Rick_L
Member #409
Posts: 27818
Loc: Katy, Tx, USA
Reg: 07-06-00
|
12-07-20 07:01 PM - Post#2809597
In response to Frankman
Note that in the previous replay that he made the firewall mod for appearance. You do not have to do this for the engine to fit in the engine bay and clear the firewall.
On the other hand, some transmissions that are typically used with an LS engine need additional transmission tunnel clearance. This includes 6 speed manual and 6 and 8 speed automatics. 4 speed automatics clear the tunnel.
The other thing that may happen here is that depending on what belt accessory drive, radiator/fan setup, and intake tube arrangement you have, things may get tight at the front of the engine. But with the right combination of parts it will all fit without firewall mods.
|
WagonCrazy
"15th Year" Platinum Supporting Member
Posts: 3257
Loc: So Cal
Reg: 06-07-05
|
12-09-20 07:58 PM - Post#2809717
In response to Frankman
57 Nomad -LS1 with C4 suspension
59 Apache Fleetside Shortbed BigWindow
|
|
Frankman
Poster
Posts: 81
Reg: 09-25-17
|
12-17-20 06:49 PM - Post#2810251
In response to Rick_L
mentioned having to use the
|
Frankman
Poster
Posts: 81
Reg: 09-25-17
|
12-17-20 07:06 PM - Post#2810253
In response to Frankman
Ok Rick so I'm thinking a ls3 and 4l60e should work rite. So you mentioned using the rite combination of parts do we know what parts these are.
|
|
Gain extra benefits by becoming a Supporting Member 
Attachment: 
