1991-96 B-Body LS Conversion

This LS swap kit is for the 1991-1996 Impala SS, Caprice, and Road Master, including station wagons. The center of this conversion is our engine mounts and crossmember kit. This mount kit includes new frame brackets that bolt into existing holes in the frame. Unlike most LS swap parts on the market everything here was made to work together, so you'll have clean mounting of your engine and not a mix of unrelated parts. Our engine mounts position the engine so there is no steering interference, and our crossmember maintains the proper drive-line angle. There are many options to complete this conversion including, oil pans, headers, fuel system, cooling, front accessories, and wiring. Simply scroll down through the following part groups to see all that we offer for an easy, strong, and clean installation of your LS engine. See our installation guide for more info on this LS swap.

1991-96 B-Body Impala

LS Series Swap

Sold separately so you get what you need.

Everything here is specifically for your car

No generic hope-it-fits parts here. Everything was developed on a real project car for the best possible fit.

Available transmissions


602-0102-56    LS and T-56 or TR-6060*

602-0102-60    LS and 4L60E to 4L70E

602-0102-80    LS and 4L80E or 4L85E

602-0102-89    LS and 6L80E to 10L90E

602-0102-40    LS and TH400

602-0102-35    LS and PG,TH350 or 4spd



602-0002-56    LS and T-56 or TR-6060*

602-0002-60    LS and 4L60E to 4L70E

602-0002-80    LS and 4L80E or 4L85E

602-0002-89    LS and 6L80E to 10L90E

602-0002-40    LS and TH400

602-0002-35    LS and PG,TH350 or 4spd

Mount and Crossmember Kit

Includes motor mounts, frame brackets, transmission crossmember, transmission mount, and hardware.  Manufactured from the highest grade American made steel. They're laser cut, precision bent, powder coated and feature polyurethane bushings.  It has a lifetime free replacement warranty on the bushings.                                                   $529.00

*Using a TR-6060 and some 8L90E/10L90E transmissions will require the use of one of the late model mount adapters listed below.

Individual Components

For those of you working on custom applications we offer our engine mounts separately. To ensure proper driveline angle we recommend getting the Mount and Crossmember kit together for standard LS swaps.

502-1302-00      91-93 Engine mounts and frame brackets only             $299.00


602-1302-00      94-96 Engine mounts and frame brackets only              $299.00


502-2200-00      91-96 Sure-Fit Crossmember only                                 $299.00

Late Model Transmission Mount Adapters

We have adapter brackets available for those of you using Camaro TR-6060 or CTS-V T-56 manual transmissions and CTS-V 6L80E or 8L90E automatics. Click here for more info.


Solid Race Bushings

Also available are solid race bushings for our engine mounts.

Oil Pan kits

We developed our MuscleRods high-clearance oil pan to offer the best combination of fit, clearance, oil control and ease of installation. Built to our specs by Moroso, the pan works with strokes up to 4.125" and retains the OEM oil filter location. The high-clearance pan kit includes the pickup tube, gasket, hardware and our exclusive pickup-tube girdle. The GM LH8 Muscle Car pan can also be used with this conversion, but please be aware the sump will extend below the front crossmember approximately 1 to 1-1/2 inches. For this reason our high-clearance pan is a must for any vehicle that has been lowered.

Click here for oil pan install article.

000-6400-00      High Clearance Oil Pan                                                  $529.00


000-6100-00      LH8 Oil Pan                                                                    $299.00


000-6102-00      LH8 Oil Pan (machined for ‘08 up VVT bypass)             $379.00

Our High Clearance oil pan will be flush or above the front crossmember.

Baffled for better oil control.

OE oil filter location.

BRP Oil Pump Pickup Tube Girdle

Original GM oil pickup tubes are fastened to the pump with a single bolt mating flange on the tube. The bolt hole on the other side is not used. Our Girdle is cnc machined aluminum and goes over the original mating flange, wraps around the tube, and fastens using both bolt holes. Use with a little Locktight and it’s cheap insurance against an engine meltdown. It comes with two longer bolts for install.


000-6000-00      Girdle with hardware                                                      $34.95


Our oil pan kits come with our exclusive pickup tube girdle.

MuscleRods Ceramic Coated Headers

Our ceramic-coated headers offer many features that are normally only found on custom race headers. We start with 3/8" laser cut flanges with the tubes welded inside and out and then machined. The mid-length headers use a gasket-less ball and socket type collector for a leak free install. The long tubes feature a slip-fit collector that when used in conjunction with band clamps offer great ground clearance .We offer several sizes so you can match them to your horsepower level. Our stepped headers offer great high rpm performance while retaining good low and mid-range power. They all include gaskets, bolts, reducers, and O2 sensor bungs. Standard ceramic finish is polished silver, contact us for bare steel and black ceramic coated pricing.


MR45486      1 ¾” ceramic coated mid-length headers                          $604.00


MR45496      1 ¾” ceramic coated long tube headers                            $789.00


MR45516      1 7/8” ceramic coated long tube headers                          $839.00


MR45536      2” ceramic coated long tube headers                                $939.00


MR45506      1 ¾” stepped to 1 7/8” ceramic coated long tube              $989.00


MR45526      1 7/8” stepped to 2” ceramic coated long tube                  $1039.00

Exhaust Accessories

We have Stainless band clamps and header bolts along with reducer cones to help you complete your exhaust system. Click here for more info.


Fuel Pump and Fitting Kit

Our Pump and fitting kit makes it easy to convert your existing fuel tank to work with your new LS engine. The kit includes a Walbro 255 lph in-tank fuel pump to go onto your existing sending unit and all fitting needed to then hook your sending unit to our fuel line kit.

Fuel Line and Regulator Kit

Our quick and easy complete fuel line systems includes everything needed to go from the fuel tank to the LS fuel rail. Includes P.T.F.E. braided and covered fuel line, an OE style fuel filter/regulator combo, line clamps, and all fittings and connectors needed. Standard kit is for 255 LPH pumps with a 400 LPH version also available. Click for more info.

LS Conversion Radiators

We now offer conversion radiators specifically designed for your car with an LS engine. They feature all aluminum construction, but unlike others on the market, they have beautifully stamped tanks with strengthening indentations just like your original. They're a double pass design putting the inlet and outlet on the same side which greatly simplifies plumbing to the engine. The all important steam port bung is welded into the upper part of the tank which lets your new LS engine vent properly. They also include a sensor port that can be used for a coolant temp fan switch.  Excellent restoration type quality made in the USA. Available in bare aluminum or black and with or without high performance electric fans installed.


313-9044-0M        91-96 B-body LS Radiator (Manual Trans)                     $794.00


313-9044-0A         91-96 B-body LS Radiator (Auto Trans)                         $894.00


313-9044-MF        91-96 B-body LS Radiator (Manual Trans) with fans      $1219.00


313-9044-AF         91-96 B-body LS Radiator (Auto Trans) with fans          $1319.00

Black Epoxy coating

Optional dual high performance fans installed

LS Swap Hoses and Line Kits

Check here for radiator hoses, transmission line and power steering kits to complete your swap.

Wiring Harnesses and Computer

We offer many stand-alone harnesses as well as harness and re-flashed computer packages.

Gauge Components and Sensors

We offer a group of gauge adapters and sensors to get your original gauges working with your late model engine and transmission  For more info click here.

LS Front Accessory Drives

Whether you are looking for original equipment style, or full billet custom, we have you covered. We have partial and complete kits in several finishes, that have been tested to work with our other components and your car. Hit the link for more info.

LS Engine and MuscleRods T-Shirts

Check out our Apparel Section for the latest in LS Engine and MuscleRods gear.


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