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Under the Hood

Explore our selection of 'Under the Hood' products, your go-to source for upgrading the performance and appearance of your classic car or truck. Whether you're aiming to increase horsepower, improve cooling efficiency, or just want to give your engine bay a fresh new look, Classic Performance Products (CPP) has ... you covered. We offer a wide variety of premium components from top manufacturers, ensuring you get the best for your classic vehicle.

Why Trust CPP
At Classic Performance Products, we're dedicated to helping you reach the full potential of your classic vehicle. Our selection of "Under the Hood" parts assure easy installation and compatibility, making your upgrade process seamless. Elevate both the performance and aesthetic appeal of your ride with our top-tier components. Dive in and find exactly what you need to transform your classic car or truck today!

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1538 items

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  1. LS Engine Install Kit W/Manifolds, 1955-57 Chevy Full Size

    1955-57 Chevy Full Size, Includes Oil Pan, Engine Stands, Adjustable Engine Mounts, Transmission Cross Member, Cast Iron Manifolds & Head Pipes, W/Polyurethane Mounts

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    In Stock
    Part # 5557ELS-K
    0%
    $1,100.00
  2. Dewitt LSX Radiator Conversion Kit for 67-87 Chevy Truck Manual

    67-87 Chevy Truck Manual LSX Radiator Conversion Kit

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    In Stock
    Part # DR6139018M
    0%
    $1,445.00
  3. Dewitt LSX Radiator Conversion Kit for 62-67 Chevy II/Nova Manual

    62-67 Chevy II/Nova Manual LSX Radiator Conversion Kit

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    In Stock
    Part # DR6139010M
    0%
    $1,445.00
  4. LT Engine Adjustable Mounting Plates

    1/2" Rearwards to 3 1/2" Forward, Can be used with A/C Compressor in the upper Passenger position, or no A/C Compressor, with Polyurethane Pads

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    In Stock
    Part # LT1-KU
    0%
    $119.00
  5. Eddie Motorsport Serpentine Kit 8 Rib Big Block Chevy No Power Steering Black Anodized

    Pulley Kit, 8 rib serpentine, Chevy Big Block, Aluminum, A/C, No Power Steering, 170A, Gloss black anodized finish

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    In Stock
    Part # EMS107-14BA
    0%
    $2,850.00
  6. Eddie Motorsport Serpentine Kit Raven Big Block Chevy Black

    Pulley Kit, serpentine, Chevy Big Block, Aluminum, A/C, Power steering-Plastic reservoir, 170A alt, Gloss black

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    In Stock
    Part # EMS118-50BK
    0%
    $2,765.00
  7. LS Engine Install Kit W/Silver Ceramic Manifolds for 59-64 Chevy Full Size

    59-64 Chevy Full Size, Includes Oil Pan, Engine Stands, Adjustable Engine Mounts, Transmission Cross Member, Silver Ceramic Coated Cast Iron Manifolds W/ Head Pipes, W/Polyurethane Mounts

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    In Stock
    Part # 5964ELS-KSCA
    0%
    $1,180.00
  8. PSI Wiring Harness LH6 w/ 6L80E w/ EV6 Injectors

    2005-2014 LH6 with 6L80E with EV6 Injectors

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    In Stock
    Part # HAR-1058
    0%
    $589.00
  9. Holley Sniper EFI HyperSpark Distributors for Chevy Small Block

    Distributors, Sniper EFI, HyperSpark, HEI Cap, Hall Effect, Billet Housing, Polished, Chevy, Small Block, Gen 1, Big Block, Gen V, Mark IV, Each

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    In Stock
    Part # 565-300
    0%
    $369.00
  10. Vintage Air Beadlock O-Ring Fitting w/ 134a Service Port NO 10 Reduced Barrier Hose Fitting - 90 degree w/ Port

    Beadlock O-Ring Fitting with 134a Service Port NO 10 Reduced Barrier Hose Fitting - 90 degree with Port

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    In Stock
    Part # VA-355330
    0%
    $19.00
  11. Double under Dash Louver

    1958 Chevy Fullsize, for 2.5" Hose, Black W/Chrome

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    In Stock
    Part # VA-63016-VUL
    0%
    $34.00
  12. Eddie Motorsport Serpentine S-Drive Pulley Kit Small Block Chevy No A/C Polished

    Pulley Kit, serpentine, Chevy Small Block, Aluminum, No A/C, Power Steering-Plastic Reservoir, 170A, Polished

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    In Stock
    Part # EMS107-57P
    0%
    $2,325.00
  13. DeWitts HP-Series Radiator Modules for 1967-72 C10 Small/Big Block, Automatic

    67-72 C10 Small/Big Block Automatic, Radiator, Direct-Fit, Aluminum, Black, 2-Row, Crossflow, Chevy, Each

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    In Stock
    Part # DR4139018A
    0%
    $1,440.00
  14. LS Engine Adjustable Mounting Plates, Rubber Pads & Clam Shell Engine Perches

    1/2" Rearwards to 3 1/2" Forward, Can be used with A/C Compressor in the upper Passenger position, or no A/C Compressor, with Polyurethane Pads

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    In Stock
    Part # LSCSM-KR
    0%
    $189.00
  15. Low A/C LS Engine Adjustable Mounting Plates

    2.25 Forward to 3.75 Forward (Used Mainly on Chevy Trucks, not useable on most cars), works with CP-1114G

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    In Stock
    Part # LS1-KULAC
    0%
    $119.00
  16. High Performance Cooling Modules for 57 Chevy Full Size, LS Engine

    57 Chevy Full Size Gen II Cooling Modular, LS Engine

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    In Stock
    Part # HR-5710-LS
    0%
    $3,350.00
  17. Chevy Small Block Poly Motor Mount Chevy Small Block Poly Mount

    Chevy Small Block Poly Motor Mount

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    In Stock
    Part # CP-1114G
    0%
    $39.00
  18. Lokar Hi-Tech Flexible Black Stainless Engine Dipstick for 1999 & Later GM LS Series Truck w/Doug Thorley Tri-Y Headers

    1999 & Later GM LS Series Truck Push Into Block PassengerS Side/Doug Thorley Tri-Y Headers

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    In Stock
    Part # XED-5021
    0%
    $87.00
  19. PSI Gen IV Standalone Wiring Harness w/ 4L60E

    2008-2013 LS3 with 4L60E

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    In Stock
    Part # HAR-1038
    0%
    $659.00
  20. Vintage Air SureFit Condenser Kit w/ Drier for 1967-69 Camaro and 1967-68 Firebird

    1967-69 Camaro/1967-68 Firebird SureFit Condenser Kit with Drier

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    In Stock
    Part # VA-021190
    0%
    $330.00
  21. Eddie Motorsport Coil Relocation Kit LS2/3/7 w/ Bracket Polished

    Coil Relocation Kit, with Brackets LS2-3-7-9 Chevy Coils, Aluminum, Made in the USA, Bright polished finish

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    In Stock
    Part # EMS109-11P
    0%
    $213.00
  22. PSI Vortec DBW w/ 4L60E Standalone Wiring Harness

    2003-2007 Chevy & GMC Vortec with 4L60E, DBW

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    In Stock
    Part # HAR-1014
    0%
    $579.00
  23. High Performance Cooling Modules for 55 Chevy Full Size Standard W/ A.C.

    55 Chevy Full Size Gen II Cooling Modular Standard W/ A.C.

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    In Stock
    Part # HR-5520-ST-AC
    0%
    $3,960.00
  24. Eddie Motorsport Valve Covers LS Billet Smooth Polished

    Valve Covers, Chevy LS, Billet Aluminum, Smooth top, Bright polished finish

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    In Stock
    Part # EMS108-70P
    0%
    $549.00
  25. Vintage Air SD-7B10 Standard Compressor Fitting Kit

    Standard Compressor Fitting, Sanden SD7B10

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    In Stock
    Part # VA-045001
    0%
    $33.00
  26. Dewitt LSX Radiator Conversion Kit for 59-62 Chevy Full Sized, Manual, Black

    59-62 Chevy Full Sized, Manual, Black Finish LSX Radiator Conversion Kit

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    In Stock
    Part # DR6239015M
    0%
    $1,595.00
  27. Dewitt LSX Radiator Conversion Kit for 59-64 Chevy Full Sized Automatic, Black

    59-64 Chevy Full Sized, Notched for Power Steering Automatic, Black Finish LSX Radiator Conversion Kit

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    In Stock
    Part # DR6239014A
    0%
    $1,695.00
  28. Eddie Motorsport Serpentine Kit Elite 8 Rib LS Chevy Billet Reservoir Black

    Pulley Kit, 8 rib serpentine, Chevy LS, Aluminum, A/C, Power Steering-Aluminum Reservoir, 170A, Gloss black

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    In Stock
    Part # EMS107-16BBK
    0%
    $3,495.00
  29. Eddie Motorsport Serpentine Kit 8 Rib Small Block Chevy No Power Steering Polished

    Pulley Kit, 8 rib serpentine, Chevy Small Block, Aluminum, A/C, No Power Steering, 170A alt, Bright polished finish

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    In Stock
    Part # EMS107-11P
    0%
    $2,695.00
  30. Vintage Air Gen 5 SureFit Complete Kit for 1969 Chevrolet Camaro without Factory Air

    1969 Chevrolet Camaro without Factory Air Gen 5 SureFit Complete Kit

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    In Stock
    Part # VA-961245
    0%
    $2,200.00
  31. Vintage Air SureFit Condenser Kit without Drier for 1968-72 Chevelle

    1968-72 Chevelle SureFit Condenser Kit without Drier

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    In Stock
    Part # VA-026670
    0%
    $300.00
  32. Vintage Air Gen IV SureFit Complete Kit for 1970-72 Oldsmobile Cutlass without Factory Air

    1970-72 Oldsmobile Cutlass without Factory Air SureFit Complete Kit

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    In Stock
    Part # VA-961076
    0%
    $2,100.00
  33. Vintage Air SureFit Gen 5 Condenser Kit w/ Drier for 1953-56 Ford F100

    1953-56 Ford F-100 Gen 5 SureFit Condenser Kit with Drier

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    In Stock
    Part # VA-011088
    0%
    $330.00
  34. Eddie Motorsport Coil Relocation Kit LS2/3/7 w/ Bracket Machined

    Coil Relocation Kit, with Brackets LS2-3-7-9 Chevy Coils, Aluminum, Made in the USA, Raw machined finish

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    In Stock
    Part # EMS109-11M
    0%
    $182.00
  35. Eddie Motorsport Serpentine Kit 8 Rib Small Block Chevy Billet Reservoir Matte Black

    Pulley Kit, 8 rib serpentine, Chevy Small Block, Aluminum, A/C, Power Steering-Aluminum Reservoir, 170A, Matte black

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    In Stock
    Part # EMS107-10BMB
    0%
    $3,095.00
  36. Vintage Air Gen 5 SureFit Complete Kit for 1990-94 Chevrolet Pickup w/ Factory Air

    1990-94 Chevrolet Pickup with Factory Air Gen 5 SureFit Complete Kit

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    In Stock
    Part # VA-945738
    0%
    $2,300.00
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