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Site Updated: 12/6/17

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Southern Performance Systems
Phone: 678-482-0866
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Today's Muscle Engines for Yesterday's
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78-81   G-body

Southern Performance Systems now offers Conversion Kits for the 1978-1981 Malibu, Monte Carlo and El Camino. This kit offers a Bolt-in installation package to help with one of the most difficult tasks (Engine and Transmission Mounting) for modernizing your 78-81 G-body Chevy. Works Great with stock accessories from a 98-02 F body, 04-06 GTO, 97-05 Corvette clear the K-member and frame with little modifications to the frame. This kit is designed around the LH8 Oil Pan so there is no need to cut or weld the oil pan to clear the steering and cross member. Due to variations in body, body mounts, and frames you might need to clearance the transmission tunnel or firewall. We also offer the complete line of Muscle Rod headers ranging from 1 3/4" mid- length through 1 7/8" to 2" stepped long tube headers.

The Conversion kit includes motor mounts, frame brackets, transmission cross member, polyurethane transmission mounts, hardware and detailed instructions. The kits come with a lifetime free replacement/repair warranty.

LS Engine Installation Kits

Part#

Product

Price

$25 Shipping Charge.

107-0002-60

78-81 Malibu/El Camino 4L60E/4L70E Installation Kit

$479.00

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107-0002-56

78-81 Malibu/El Camino T56 Installation Kit

$479.00

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107-0002-89

78-81 Malibu/El Camino 6L80E/6L90E Installation Kit

$479.00

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The GM LH8 Oil Pan will fit any LS Style Engines. The oil pan clears without modification to the stock steering center link which lets you use the stock or power rack steering set-ups.

Kit includes Oil Pan, Deflector Shield, Screen/Pickup Tube, Bolts, Dip Stick

LH8 Kit Retail Price $230.00 ($30 Shipping)

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Headers for 78-81 G-body

Part#

Product

Price

$50 Shipping Charge.

MR45006

1 3/4" Ceramic Coated Mid-length Headers

$569.00

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MR45016

1 3/4" Ceramic Coated Long Tube Headers

$699.00

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MR45026

1 3/4" Stepped to 1 7/8" Ceramic Coated Long Tube Headers

$849.00

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MR45036

1 7/8" Ceramic Coated Long Tube Headers

$799.00

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MR45046

1 7/8" Stepped to 2" Ceramic Coated Long Tube Headers

$949.00

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MR45056

2" Ceramic Coated Long Tube Headers

$849.00

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Most of the Installation Kit

Foot Notes:

1. Part number MR45006 is a mid-length weld on ball and socket type collectors with O2 bungs.
2. Part numbers MR45006-MR45056 clear the G-body’s factory OEM A/C box, power steering box, and power brakes.
3. No notching of the frame required when using the 98-02 Camaro/Firebird F-body A/C compressor.
4. No transmission tunnel modifications required with 4L60E, but you will have to split the trans tunnel with the T-56.
5. Headers are designed around a floor shifter linkage and may require modifications to a column shift linkage for clearance.
6. Headers work with the following transmissions: T-56, 4L60E, 4L65E.
7. When ordering, you must specify year, make, model, and which transmission is being used (T-56, 4L60E, or 4L65E) cross members are different.
8. Lsx kits and Headers for these cars are to be used with the GM LH-8 oil pan.
9. In some header installations the starter, valve cover, and/or spark plugs may need to be removed for installation of the new Muscle Rod headers.

Jobber/Installer Pricing is Available. Call 770-416-7649 for Details.