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Home» Auto Machine Shop»37 Buick 248 Straight-8 Engine Rebuild
remanufactured buick 248 engine

37 Buick 248 Straight-8 Engine Rebuild

Special 40-Series

Remanufactured Buick 248 Engine.

We have a cool classic rebuild at the Machine Shop this month, a Buick 248.
Model: 1937 Buick Special 40-Series 248 Straight-8 16V.

We are rebuilding the Cylinder Head and the Short Block separately and the customer is performing the final assembly.

Rebuild Agenda: Teardown and inspection.  Block work: Bore, Hone, and Deck. Machine components-Crank, Cam, and Connecting Rods.  Valve Job on Cylinder head.  Rebuild with new engine parts.  Clean up extra parts. Assemble Remanufactured Short block and cylinder head.  Let’s look at some photos of this beauty!

Before Rebuild

Buick 248 before engine rebuild

Grunge Crank

Before rebuild Buick 248
Before shot

Straight-8

The block and head came in needing some TLC.  Baked on grunge we need to clean up so we can see the condition.  Those crispy pistons gotta go!  Same with the cylinder head, hot tank here we come. Let’s take these cast iron big guys apart and get moving on the block and head machine work.

Before Valve Job

hot tank buick 248 head

MACHINE SERVICES

After Hot Tank

Hot tank scrubbed buick 248 block

Fresh from the second hot tank, the block is ready for the bore machine.  Crank, Cam and Connecting Rods are being reconditioned.  Engine parts have been ordered.  Elbow grease time.

Bore Cylinders

Bore Buick 248 engine block

You can see the difference that boring the cylinders makes, that last one is still black.

Block Shaping Up

Bore cylinder in Buick 248 block

We are ready for the honing machine to get a nice cross-hatch on the cylinders.  We want proper lubrication and good ring seal for the pistons.

After Bore

Buick 248 engine block

Bore and Hone block work is complete.  Now we can deck the surface and make a nice smooth mating surface.

Time to start building the Short Block.

Engine block- bore, honed, and decked.  Crank and Cam- reconditioned, reground, and polished.

Buick 248 Engine Rebuild Parts

Few shots of the new Pistons, Bearings, and Gasket Set for the Buick 248.  I didn’t get any shots of the Timing Set until it was on the block.  More bearing and piston ring pictures below during the rebuild.

Buick 248 Short Block Assembly

Block is ready for assembly, we’re pulling out the Clevite engine assembly lube to put this beast together. Installing Cam, Crankshaft, Cam bearings, Rod bearings, Main bearings and Timing set.  Connecting rods were reconditioned and we hung the pistons. Check out the rebuild photos.

Cylinder Head Valve Job

Repairs for the Buick 248 Straight-8 cylinder head: Pressure test, Magnaflux for cracks, Resurface, Grind valves, Cut 3-angle valve seats, install new Exhaust Guides, and new Valve Stem Seals.  Clean and assemble.

Buick Special 40 Series 248 Short Block Rebuild

Engine rebuild on the Short block is complete.  Take a gander at the end product.  This is a cool classic engine from a damn cool car.

Remanufactured Buick 248

37 Buick Special 40 Straight-8 248 engine rebuild

Complete engine rebuild on 1937 Buick 248 Straight-8.

Do you need your Buick 248 rebuilt?

Contact us by Email or 818 767-6603 to get an estimate.

Automotive Machine Shop Services available:
Bore, Hone, Deck engine block.
Grind Crankshaft
Grind Camshaft
Cylinder head repair and/or Valve Job

37 Buick Special 40-Series 248 Engine Buick 248 Buick Special 248 engine rebuild Buick Straight-8 Buick Straight-8 Valve Job 2018-03-23
Tags 37 Buick Special 40-Series 248 Engine Buick 248 Buick Special 248 engine rebuild Buick Straight-8 Buick Straight-8 Valve Job
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Remanufactured Ford 200 Straight-6 Engine

14 Comments

  1. Manny S.
    November 3, 202210:22 pm -

    Price to rebuild my 248 straight 8 in my ‘41 Buick Special?

    Reply
  2. michael lozada
    June 14, 20229:30 am -

    Hello
    wondering if you can help i have a 37 buick special 40 with 248 and I am wondering if you have any idea if i replaced my original starter to a 12v system but had to rebuild it a couple of times and gets expensive is there a more modern starter i can replace it with that will work any advice would help I live in central Florida and cant seem to get any help from my local shops here.

    Reply
    • Valley Auto Parts
      June 14, 20229:47 am -

      Michael, I will email you.

      Reply
  3. Wadr David
    December 21, 20206:01 pm -

    1953 Buick Special with straight 8. Looking to get engine rebuilt, include, cam, crankshaft, pistons, rods, bearings, water pump, fuel pump, carb, hot tank, need new exhaust manifold.

    Reply
  4. Richard Macias
    September 25, 20208:46 pm -

    I have a 1949 buick super a 248ci that needs to be rebuilt. Could I get an estimate.

    Reply
  5. Monte
    August 4, 202011:00 am -

    I have straight 8 engine in my 37 special, was wondering about what it cost to rebuild?

    Reply
    • Johnny Gallegos
      March 26, 202111:23 am -

      Do you sell a complete rebuild kit for a 248 straight 8 buick engine

      Reply
      • Valley Auto Parts
        March 26, 202111:27 am -

        Johnny,
        Yes, we have Engine Rebuild Kits for the Buick 248 engine.
        I will email you for your specific details.
        Regards, Lucinda

        Reply
  6. Ruben Saavedra
    June 23, 20207:51 pm -

    Do you have 248 engine’s all ready rebuild for sale for a 1940 Buick Special

    Reply
  7. Ruben Saavedra
    June 18, 20208:53 pm -

    How much will you charge to rebuild my 248 special 40

    Reply
    • Valley Auto Parts
      June 19, 202011:12 am -

      Ruben, I sent you an estimate to rebuild your Buick 248 engine.
      Regards, Lucinda

      Reply
    • Roger Murphy
      August 15, 20212:23 pm -

      I’m rebuilding a 39 Buick 320 cu in, these rods need to be babeted, I’ve heard the later years changed to rod and insert. We would also need .30 over pistons and .10 rod bearings Would you have any idea how I can achieve this

      Reply
  8. Michael Hegemann
    June 19, 201912:58 am -

    Dear Gentlemen, for a project I´m in need of a Buick Straight eight engine with around 120 HP. Complete with all attachents and transmission – refurbished. Can you be of help?

    Reply
    • Valley Auto Parts
      June 19, 20197:23 pm -

      Michael,
      Thanks for contacting us on the blog. I replied to your direct email.
      Thanks
      Lucinda

      Reply

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Valley Auto Parts and Engines started in 1978 to bring affordable Engine Rebuilding and Auto Parts to Los Angeles. Now worldwide.


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