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Air Cleaners

Air Cleaners Foam Seal Metal Lid Rivet and Spring Clip Springs Vacuum Motor Valve Cover Retainers   This reproduction air cleaner is licensed and approved by GM.  The air cleaner ships fully assembled (all parts shown are included) along with installati more »

About Us

About Us   Welcome to Thornton Reproductions. Quality products backed by years of experience! We offer an ever increasing line of GM licensed restoration parts for your 442. We are a specialty restoration shop that specializes in 1964-1972 Oldsmobile 442s.  The parts that more »

1965-1967 Dual Exhaust Manifolds

1965-1967 Dual Exhaust Manifolds High quality GM licensed and approved reproduction part. They are visually and functionally correct. They are NOS quality without the NOS price. Correct replacement for 1965-67 442, Cutlass or any Oldsmobile with a big block. Eliminate hassles and costly repairs for more »

Chrome Valve Covers

NEW! Chrome Valve Covers Brand New factory correct production CHROME notched valve covers for the 1969 Hurst Olds and the 1967 W30 cars with the correct baffle design and factory spot welds!!! These valve covers were reproduced for high quality restored 442's that demand the best. No need to more »

Radiator Top Plate

Now available, 1969-72 four row radiator top plate.  Fits Oldsmobile Cutlass 442, H/O, W30. This is the correct reproduction with all the correct details.  This is a great replacement for your dented or rusted top plate or a great add on for the three row radiator Cutlass 442s that need a more »


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    • TESTIMONIALS
      "Working with the Thornton's had been an absolute pleasure. The tour of the shop was amazing. It is clear that they love what they do."
      ~ Matthew Praetzel
    • THORNTON MUSCLE CARS
      832 Mine Road
      Quakertown, PA 18951

      610-282-2494
      610-282-2484
      800-495-0442
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