LS style engine in 1962 Belair?

[denson1932]

OK whats the secret to get a Chevy or GMC 'LS' (4.8, 5.3, 6.0 L engine to fit down onto the stock 1962 V-8 frame (motor) mount brackets? I have a 2004 Silverado 5.3L engine. The aluminum 7 quart oil pan was too tall so i bought a 12640748 (LS crate engine ) oil pan....but it would not clear the frame crossmember on the back side. So i bought a 5 quart 19212593 'swap' oil pan and now it will clear the back of the crossmember but the front of the oil pan sits on top of the crossmember when i lower it into place (see pixs). Looks to me like it is necessary to modify the crossmember (by cutting it and lowering the top of it) to get the engine down into place...i have the typical 'LS motor mount adaptor plates' the ones i chose moves the engine 1" foreword from stock at the Bell housing/engine line. Note the pixs when i get the motor mount bolt inserted on the pass. side, the driver's side ain't going to make it....

 

[pvs409]

This guy put a LS motor in a 61 Chevy bubble top.
I am not sure you can see the pictures. there are 53 pages of his build.
I remember that he had to modify the mounts to work & I think modify part of the frame
-check on pages part way into the build.
https://www.chevytalk.org/fusionbb/showtopic.php?tid/302726/

Paul

 

[DonSSDD]

That’s a great read, especially if you want to see major rust repair on a 61 Impala. Great details on pictures.

 

[DonSSDD]

Sorry, I was thinking of this one, which is also a 61 Impala with an LS.
https://www.chevytalk.org/fusionbb/showtopic.php?tid/332208/

 

[gesto]

These might help:

https://ls1tech.com/forums/conversions-hybrids/1593177-5-3l-into-1962-impala.html
https://ls1tech.com/forums/conversions-hybrids/926678-my-62-impala-project-3.html

There are several other X-frame LS swap projects on that site.

 

[61BUBBLE348]

I reckon he has modified the front cross member to clear the sump etc

 

[russdana]

I used the mounts from BRP to install my Ls-3 and a camaro oil pan.