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    LS Swap Kit

    CJ
    CJ-5, CJ-7, CJ-8 Scrambler

    1974–1986

    The original Jeep platform, upgraded with the engine it was always missing.

    The CJ series is where Novak's drivetrain expertise began. From the CJ-5 to the CJ-8 Scrambler, these vehicles have been converted with LS powerplants for decades. The chassis is well-understood, the mounting solutions are refined, and the Novak CJ kit reflects generations of hands-on engineering on this exact platform.

    Transmission
    ← All Models
    Choose Your Kit Level Three Configured Kit Options

    Transmission: 4L60E

    Foundation Foundation
    Kit KIT-LS-CJ-A-1
    $537 Save 3%
    Est. kit price
    3 parts included

    The core mechanical components - engine mounts, transmission adapter, and the structural hardware that makes the LS engine fit correctly. Everything here must be right before the rest of the swap can happen.

    Essential Essential
    Kit KIT-LS-CJ-A-2
    $2,992 Save 5%
    Est. kit price
    16 parts included

    A broader configured kit focused on the systems that make the swap driveable: cooling support, wiring integration, and transmission ancillaries selected for this application.

    Complete Complete
    Kit KIT-LS-CJ-A-3
    $4,513 Save 8%
    Est. kit price
    26 parts included

    The fullest configured kit for this application, adding the electronics, tachometer solutions, and finishing components chosen for a more comprehensive conversion.

    Full Parts List What's In Each Kit

    Click any part name or photo to view its product page. A checkmark means the part is explicitly included in that kit configuration.

    Part Foundation Essential Complete
    Adapters
    4L60E / 4L65E / 4L70E to Dana 300 Adapter
    4L63 4L60E / 4L65E / 4L70E to Dana 300 Adapter
    		— — ✓
    4L60/4L60E Notched Transmission Pan Kit (Filter & Gasket)
    4L60NP-K 4L60/4L60E Notched Transmission Pan Kit (Filter & Gasket)
    		— — ✓
    Cooling
    Radiator Overflow Tank, 3" x 10", Polished Stainless
    OT6082 Radiator Overflow Tank, 3" x 10", Polished Stainless
    		— ✓ ✓
    Auxiliary Transmission Cooler, 30,000 BTU (With Fittings) Northern
    K-OC-H7B-N Auxiliary Transmission Cooler, 30,000 BTU (With Fittings) Northern
    		— ✓ ✓
    Braided Stainless Auto Trans Cooler Lines, Dual -6AN, 74" OAL
    TR-FLX Braided Stainless Auto Trans Cooler Lines, Dual -6AN, 74" OAL
    		— ✓ ✓
    Jeep CJ Electric Fan & Shroud Assembly, Max Performance (Only fits Novak radiator)
    FX3300-C Jeep CJ Electric Fan & Shroud Assembly, Max Performance (Only fits Novak radiator)
    		— ✓ ✓
    Jeep CJ Radiator for LS Gen 3/ Gen 4 Engine swap
    K-CJ30H Jeep CJ Radiator for LS Gen 3/ Gen 4 Engine swap
    		— ✓ ✓
    Engine Parts
    LS Gen III Cold Air Intake Kit
    AI4-K LS Gen III Cold Air Intake Kit
    		— ✓ ✓
    Plug, EGR block-off, 1997 C5 LS1, 1998-2000 F-body LS1, 1999-2001 Vortec
    12558346 Plug, EGR block-off, 1997 C5 LS1, 1998-2000 F-body LS1, 1999-2001 Vortec
    		— ✓ ✓
    GM Gen III Intake EVAP Block-Off Plug
    G3EV1 GM Gen III Intake EVAP Block-Off Plug
    		— ✓ ✓
    GM Oil Level Sensor Plug w/ Sealing Washer (4.5" x 2.2" x 1")
    2361 GM Oil Level Sensor Plug w/ Sealing Washer (4.5" x 2.2" x 1")
    		— ✓ ✓
    GM Gen III Intake EVAP Relocation Kit
    G3EV2 GM Gen III Intake EVAP Relocation Kit
    		— — ✓
    Gen III Manifold Adapter Vacuum Port (Power Brake Hose)
    G3VP Gen III Manifold Adapter Vacuum Port (Power Brake Hose)
    		— ✓ ✓
    GM LS Gen III Engine Top Cover
    G3TC GM LS Gen III Engine Top Cover
    		— — ✓
    Exhaust
    Gen III/IV Block Hugger Headers, Stainless, Ceramic Coated, V-Band
    EH001 Gen III/IV Block Hugger Headers, Stainless, Ceramic Coated, V-Band
    		— ✓ ✓
    Fuel
    1972-1986 CJ 15-Gal In-Tank GM Fuel Pump Integration Kit (With Filter/Regulator)
    FSK-CJ15 1972-1986 CJ 15-Gal In-Tank GM Fuel Pump Integration Kit (With Filter/Regulator)
    		✓ ✓ ✓
    Mounts
    Jeep CJ to GM LS Gen III/IV Engine Mounts (1976-1986)
    MMCJ-G3 Jeep CJ to GM LS Gen III/IV Engine Mounts (1976-1986)
    		✓ ✓ ✓
    Jeep Rear Transmission Mount (Polyurethane, Novak Style)
    RMU Jeep Rear Transmission Mount (Polyurethane, Novak Style)
    		✓ ✓ ✓
    GM P59 ECM Mount Bracket, Steel (Zinc Plated)
    MP59 GM P59 ECM Mount Bracket, Steel (Zinc Plated)
    		— — ✓
    Other
    Dana 300 Twin Stick Shifter Kit (Novak)
    K-D300TX-N Dana 300 Twin Stick Shifter Kit (Novak)
    		— ✓ ✓
    Dana 18/ Dana 20/ Dana 300 twin stick knobs billet engraved
    K100-TWIN Dana 18/ Dana 20/ Dana 300 twin stick knobs billet engraved
    		— ✓ ✓
    CJ/YJ Transmission Tunnel Cover (Customizable)
    F-7TTC CJ/YJ Transmission Tunnel Cover (Customizable)
    		— — ✓
    Twin Stick Boot w/ Stainless Bezel
    TSB Twin Stick Boot w/ Stainless Bezel
    		— — ✓
    Dana 300 Transfer Case Master Rebuild Kit (1981-1986 Long Output)
    300MR-2 Dana 300 Transfer Case Master Rebuild Kit (1981-1986 Long Output)
    		— — ✓
    Dana 300 Front Output Rear Bearing Billet Cap
    8131657-K Dana 300 Front Output Rear Bearing Billet Cap
    		— — ✓
    Jeep Dana Transfer Case Billet Bottom Cover Pan, Standard Depth
    D328-S Jeep Dana Transfer Case Billet Bottom Cover Pan, Standard Depth
    		— — ✓
    Also Useful for This Swap Frequently Also Purchased

    These items aren't in the discount kits but are commonly needed for a complete CJ LS swap.

    4L60E Transmission, Level II, TurnKey TR-4L60EL2 4L60E Transmission, Level II, TurnKey
    $2,783
    GM Gen III Intake EVAP Block-Off Plug G3EV1 GM Gen III Intake EVAP Block-Off Plug
    $27
    GM Gen III Intake EVAP Relocation Kit G3EV2 GM Gen III Intake EVAP Relocation Kit
    $78

    Transmission: AX15

    Foundation Foundation
    Kit KIT-LS-CJ-M-1
    $2,654 Save 3%
    Est. kit price
    13 parts included

    The core mechanical components - engine mounts, transmission adapter, and the structural hardware that makes the LS engine fit correctly. Everything here must be right before the rest of the swap can happen.

    Essential Essential
    Kit KIT-LS-CJ-M-2
    $4,378 Save 5%
    Est. kit price
    20 parts included

    A broader configured kit focused on the systems that make the swap driveable: cooling support, wiring integration, and transmission ancillaries selected for this application.

    Complete Complete
    Kit KIT-LS-CJ-M-3
    $5,178 Save 8%
    Est. kit price
    30 parts included

    The fullest configured kit for this application, adding the electronics, tachometer solutions, and finishing components chosen for a more comprehensive conversion.

    Full Parts List What's In Each Kit

    Click any part name or photo to view its product page. A checkmark means the part is explicitly included in that kit configuration.

    Part Foundation Essential Complete
    Adapters
    GM Gen III/IV to Muncie/Saginaw Bellhousing, 4-1/16" Bore, 12" Clutch
    GM621-LS-K GM Gen III/IV to Muncie/Saginaw Bellhousing, 4-1/16" Bore, 12" Clutch
    		✓ ✓ ✓
    AX15 to GM Bellhousing Adapter (Small Block Chevy & LS)
    GMAX15 AX15 to GM Bellhousing Adapter (Small Block Chevy & LS)
    		✓ ✓ ✓
    GM LS Gen III/IV Flywheel, 168T, Offset, 35 lb, for up to 12" Clutch (6 bolt)
    LS400-35X GM LS Gen III/IV Flywheel, 168T, Offset, 35 lb, for up to 12" Clutch (6 bolt)
    		✓ ✓ ✓
    LS Crank Bolts, Extended Length, 11mm x 1.5, Qty 6
    330-2802 LS Crank Bolts, Extended Length, 11mm x 1.5, Qty 6
    		✓ ✓ ✓
    GM/Chevy V8 Clutch Kit 11", 10 Spline x 1-1/8"
    04-049 GM/Chevy V8 Clutch Kit 11", 10 Spline x 1-1/8"
    		✓ ✓ ✓
    910 Bolts, 3/8-16 x 1, hex head, grade 8, black, GM pressure plate, set of 6
    		✓ ✓ ✓
    Novak Adjustable Throwout Bearing, GM Version
    TB1 Novak Adjustable Throwout Bearing, GM Version
    		✓ ✓ ✓
    Pilot Bushing, GM Gen III (2001-) to Jeep T14/T15/T18 & AX15 (1992-1999) / NV3550
    PB-6071357 Pilot Bushing, GM Gen III (2001-) to Jeep T14/T15/T18 & AX15 (1992-1999) / NV3550
    		✓ ✓ ✓
    GM Bellhousing Hydraulic Slave Cylinder Retrofit, 3/4" Bore (Small Block Chevy & LS style)
    HCRC-34 GM Bellhousing Hydraulic Slave Cylinder Retrofit, 3/4" Bore (Small Block Chevy & LS style)
    		✓ ✓ ✓
    Stainless Braided Clutch Line, 3AN Female Ends, With Fittings
    HCR9-K Stainless Braided Clutch Line, 3AN Female Ends, With Fittings
    		✓ ✓ ✓
    AX15/AX5/NV3550/AW4 to Dana 300 Adapter (Clocking)
    153 AX15/AX5/NV3550/AW4 to Dana 300 Adapter (Clocking)
    		— ✓ ✓
    GM VSS, 8k PPM, Cable Through
    VSS01-4160 GM VSS, 8k PPM, Cable Through
    		— — ✓
    1987-1990 Jeep YJ Clutch Master Cylinder
    53004466 1987-1990 Jeep YJ Clutch Master Cylinder
    		— — ✓
    Cooling
    Radiator Overflow Tank, 3" x 10", Polished Stainless
    OT6082 Radiator Overflow Tank, 3" x 10", Polished Stainless
    		— ✓ ✓
    Jeep CJ Electric Fan & Shroud Assembly, Max Performance (Only fits Novak radiator)
    FX3300-C Jeep CJ Electric Fan & Shroud Assembly, Max Performance (Only fits Novak radiator)
    		— ✓ ✓
    Jeep CJ Radiator for LS Gen 3/ Gen 4 Engine swap
    K-CJ30H Jeep CJ Radiator for LS Gen 3/ Gen 4 Engine swap
    		— ✓ ✓
    Engine Parts
    LS Gen III Cold Air Intake Kit
    AI4-K LS Gen III Cold Air Intake Kit
    		— ✓ ✓
    GM Oil Level Sensor Plug w/ Sealing Washer (4.5" x 2.2" x 1")
    2361 GM Oil Level Sensor Plug w/ Sealing Washer (4.5" x 2.2" x 1")
    		— ✓ ✓
    Gen III Manifold Adapter Vacuum Port (Power Brake Hose)
    G3VP Gen III Manifold Adapter Vacuum Port (Power Brake Hose)
    		— ✓ ✓
    GM LS Gen III Engine Top Cover
    G3TC GM LS Gen III Engine Top Cover
    		— — ✓
    Exhaust
    Gen III/IV Block Hugger Headers, Stainless, Ceramic Coated, V-Band
    EH001 Gen III/IV Block Hugger Headers, Stainless, Ceramic Coated, V-Band
    		— ✓ ✓
    Fuel
    1972-1986 CJ 15-Gal In-Tank GM Fuel Pump Integration Kit (With Filter/Regulator)
    FSK-CJ15 1972-1986 CJ 15-Gal In-Tank GM Fuel Pump Integration Kit (With Filter/Regulator)
    		✓ — ✓
    Mounts
    Jeep CJ to GM LS Gen III/IV Engine Mounts (1976-1986)
    MMCJ-G3 Jeep CJ to GM LS Gen III/IV Engine Mounts (1976-1986)
    		✓ ✓ ✓
    AX15/NV3550 Universal Adjustable Rear Transmission Mount
    RMAX15 AX15/NV3550 Universal Adjustable Rear Transmission Mount
    		✓ ✓ ✓
    GM P59 ECM Mount Bracket, Steel (Zinc Plated)
    MP59 GM P59 ECM Mount Bracket, Steel (Zinc Plated)
    		— — ✓
    Other
    CJ/YJ Transmission Tunnel Cover (Customizable)
    F-7TTC CJ/YJ Transmission Tunnel Cover (Customizable)
    		— — ✓
    Dana 300 Front Output Rear Bearing Billet Cap
    8131657-K Dana 300 Front Output Rear Bearing Billet Cap
    		— — ✓
    Dana 300 Twin Stick Shifter Kit (Novak)
    K-D300TX-N Dana 300 Twin Stick Shifter Kit (Novak)
    		— — ✓
    Dana 18/ Dana 20/ Dana 300 twin stick knobs billet engraved
    K100-TWIN Dana 18/ Dana 20/ Dana 300 twin stick knobs billet engraved
    		— — ✓
    Twin Stick Boot w/ Stainless Bezel
    TSB Twin Stick Boot w/ Stainless Bezel
    		— — ✓
    Also Useful for This Swap Frequently Also Purchased

    These items aren't in the discount kits but are commonly needed for a complete CJ LS swap.

    AX15 Manual Transmission, TurnKey, New TR-AX15 AX15 Manual Transmission, TurnKey, New
    $2,419
    GM Gen III Intake EVAP Block-Off Plug G3EV1 GM Gen III Intake EVAP Block-Off Plug
    $27
    GM Gen III Intake EVAP Relocation Kit G3EV2 GM Gen III Intake EVAP Relocation Kit
    $78
    AX15 Short Throw Shifter Kit K-AX15-ST AX15 Short Throw Shifter Kit
    $375
    AX15 Transmission Master Rebuild Kit Deluxe AX15MR AX15 Transmission Master Rebuild Kit Deluxe
    $298
    GM LS EGR Block-Off Kit (1997 C5 LS1, 1998-2000 F-Body LS1, 1999-2001 Vortec) 12558346-K GM LS EGR Block-Off Kit (1997 C5 LS1, 1998-2000 F-Body LS1, 1999-2001 Vortec)
    $47
    Jeep Dana Transfer Case Billet Bottom Cover Pan, Standard Depth D328-S Jeep Dana Transfer Case Billet Bottom Cover Pan, Standard Depth
    $159
    Dana 300 Transfer Case Master Rebuild Kit (1980 Short Output) 300MR-1 Dana 300 Transfer Case Master Rebuild Kit (1980 Short Output)
    $294
    Dana 300 Transfer Case Master Rebuild Kit (1981-1986 Long Output) 300MR-2 Dana 300 Transfer Case Master Rebuild Kit (1981-1986 Long Output)
    $294
    About This Kit Why the CJ LS Swap Kit Exists

    Built From Actual Swap Experience

    The CJ-5, CJ-7, CJ-8 Scrambler LS swap has been done hundreds of times by Novak customers and engineers. The parts in this kit are not assembled from a catalog - they're what works, confirmed by the people who have done it.

    The Straightforward Answer

    The biggest challenge in an LS swap isn't the fabrication - it's knowing what to buy. This kit removes that obstacle. It's Novak's direct answer to the question every builder eventually asks: "What do I actually need?"

    Component Links to Expert Guidance

    Every part links to its own product page with detailed specifications, application notes, and engineering documentation. You're not just buying parts - you're buying access to the knowledge behind them.

    Three Tiers for Every Budget

    Not every builder wants to do the full conversion in one shot. The Foundation tier lets you start with the mechanical core and add systems as your build progresses. The Complete tier ensures nothing is missed on a ground-up swap.

    ← All LS Swap Kits LS Engine Reference →