Motor location LS swap - The 1947 - Present Chevrolet & GMC Truck Message Board Network

65ChevyUtah · 11-23-2021, 10:30 PM

I am new to the ls swap game. I’ve converted my 2wd to 4 wd and I am using a pacifica fab Ls crossmember. Is there a general rule of thumb as to where to place the motor or does it matter if it fits with out hitting anything?

https://previews.dropbox.com/p/thumb...ue&size_mode=5

**Thealien** · 11-23-2021, 10:58 PM

Front differential to oil pan clearance can be an issue. If under full suspension movement you have enough clearance you are good to go.

Stock height or lift, less clearance issues with some lift.

What transmission and transfer case do you plan on using? 4L60/NP205 can have pan to driveshaft issues.

65ChevyUtah · 11-23-2021, 11:23 PM

Quote:

Originally Posted by Thealien

Front differential to oil pan clearance can be an issue. If under full suspension movement you have enough clearance you are good to go.

Stock height or lift, less clearance issues with some lift.

What transmission and transfer case do you plan on using? 4L60/NP205 can have pan to driveshaft issues.

Thanks for the reply. I have plenty of clearance underneath. I was just concerned about have to motor too far forward or back.

It’s got a lift on it. Th400/ NP205

Thanks

**Richard** · 11-24-2021, 04:18 AM

Installed a 6.2 LS. Will try to remember and get you a measurement tomorrow on my 72 4x4 SWB. I am using the Pac Fab crossmember as well. There are some pics of install in the later posts in my build thread. Clearance to oil pan does not seem to be an issue. The crossmember is the contact point. Bump stops will have to be lowered 2"-3" with the crossmember to eliminate interference.

LS short box · 11-24-2021, 09:28 PM

Another thing to consider is the headers or any exhaust manifolds. Might be a good idea to buy and install the headers and make sure clearances are good.

11-23-2021, 10:30 PM	#1
65ChevyUtah Registered User Join Date: Mar 2009 Location: Eagle Mountain Utah Posts: 97	Motor location LS swap I am new to the ls swap game. I’ve converted my 2wd to 4 wd and I am using a pacifica fab Ls crossmember. Is there a general rule of thumb as to where to place the motor or does it matter if it fits with out hitting anything? https://previews.dropbox.com/p/thumb...ue&size_mode=5 Last edited by 65ChevyUtah; 11-23-2021 at 10:36 PM.

11-23-2021, 10:58 PM	#2
Thealien Senior Member Join Date: Jun 2007 Location: Pine Ridge Florida Posts: 4,134	Re: Motor location LS swap Front differential to oil pan clearance can be an issue. If under full suspension movement you have enough clearance you are good to go. Stock height or lift, less clearance issues with some lift. What transmission and transfer case do you plan on using? 4L60/NP205 can have pan to driveshaft issues. __________________ Click on my Not really a build thread, yet NOT SO RUST FREE RUST FREE BLAZER LS ENGINE SWAP INFORMATION THREAD BOLT RESTORATIONS 4l60 to an NP205

11-24-2021, 04:18 AM	#4
Richard Senior Member Join Date: Dec 1999 Location: Southern California Posts: 2,880	Re: Motor location LS swap Installed a 6.2 LS. Will try to remember and get you a measurement tomorrow on my 72 4x4 SWB. I am using the Pac Fab crossmember as well. There are some pics of install in the later posts in my build thread. Clearance to oil pan does not seem to be an issue. The crossmember is the contact point. Bump stops will have to be lowered 2"-3" with the crossmember to eliminate interference. __________________ Richard 1972 K10 Custom Deluxe SWB Fleetside My build https://67-72chevytrucks.com/vboard/...d.php?t=800746 Last edited by Richard; 11-24-2021 at 04:31 AM.

11-24-2021, 09:28 PM	#5
LS short box Registered User Join Date: Jun 2015 Location: Carlos MN Posts: 2,131	Re: Motor location LS swap Another thing to consider is the headers or any exhaust manifolds. Might be a good idea to buy and install the headers and make sure clearances are good.



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