LS LT Swap Conversion 55-77 Tri-5 Tri 5 - LS Conversion Swap by model

55-57 Tri-5

For 1955-57 Bel Air, Biscayne,150,210, and Delray in 2 door 4 door and Convertible.

Original OEM SBC Front Mounted Motor Mount Example

In order to do a conversion, you need to convert the motor mounts to the traditional side mounted style.

DD-TRI-5

Converts your Tri-5 to have sturdy side mounted motor mounts.

Install Instructions

You will still need to choose your conversion mount on top of that if you are doing an LS GEN III/IV or LT GEN V.

LS GEN III/IV and LT GEN V Conversion Mount Options:

LS Motor Mount Conversions:

DD-LS-DOUBLE-D-S (Steel)

(Starting out in raw non painted steel so make sure you paint them before the final install otherwise they will rust. Otherwise they are offered in black textured powdercoat for a small additional charge)

DD-LS-DOUBLE-D-A (Aluminum)

DD-Slider

*Not compatible with low mount AC and passenger side motor mount requires a notch on the lower side

Installation Instructions

LT Motor Mount Conversions:

DD-LT-DOUBLE-D-A (Aluminum)

DD-LT-GLIDER

*Not compatible with low mount AC and passenger side

You either have a beautiful seamless frame that looks entirely aftermarket and it is referred to as the "California" frame, or you have a boogered weld frame. The California frame is not limited to only California. From our experience when installing an LS engine into a California seamless frame it does not require notching the front engine crossmember. The seamed frame requires a substantial notch to clear the front of the LS engine.

We used a Holley 302-1 oil pan, the only cast aluminum pan that clears the rear steering cross link.