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Home» Auto Machine Shop» Remanufactured Engines» Chevy GM Engines»GM Chevy 305 Engine Rebuild
Remanufactured Chevy GM 305 5.0L
Reman Chevy 305

GM Chevy 305 Engine Rebuild

305 Chevy Engine Rebuilding Service.

Model: 1978 GM Chevy 305 5.0L OHV 16V V8.

The popular 305 Chevy small block was due for a rebuild, this is a stock engine, not a racer.

Here is the agenda for the rebuild:
Inspection, Teardown, and Cleaning.
Block Work: Bore, Hone, and Deck the engine block.
Head Work: Valve Job includes Resurface, Grind valves, Cut 3-angle valve seats, New Exhaust guides and valve stem seals.  Clean, paint, and assemble.  Any missing, damaged, or broken parts will be replaced.
Machine Work- Recondition Crankshaft, Camshaft, and Connecting Rods.

Order New Engine parts; Pistons, Rings, Bearings, Timing, Gaskets, Oil pump, etc.
Last step, assembly!

78 GM Chevy 305 Engine Rebuild.

Engine Before we start teardown and inspections for the rebuild.

Before Rebuild

Before Engine Rebuild Chevy 305

I missed the teardown photos, but all the components checked out and are in good rebuildable shape.  We give everything a good cleaning and move on to the machine services.  Grind crankshaft and camshaft.  Bore and hone the block, and perform a valve job.

MACHINE SERVICES

305 VALVE JOB

Basic Valve Job includes: Pressure test, Magnaflux, Resurface, Grind valves, Cut 3-angle valve seats, install new exhaust guide inserts, install new valve stem seals, clean, paint, and assemble.

Any missing, broken, or damaged parts are replaced.  If it has a fixable crack we will repair it. These heads were crack free.

First shot is after cleaned and painted. We need to cut the seats and resurface it still.
Second shot is after completed valve job.

305 BLOCK WORK

Time to remanufacture the engine block.  A thorough inspection and measurements determines what size we need to bore it at. We check for any ridges, gouges, scoring, or abnormalities.  After it’s off to the Honing machine to finish the cylinders with the proper crosshatch.  Clean in hot tank to remove any oils and metals.  Last, we Deck the block surface and put a coat of primer, then a few coats of blue paint.

CHEVY 305 ASSEMBLY

While the block work is completed we reconditioned the connecting rods, reground and polished the camshaft and crankshaft, they are ready to go.  Machine work is finished and we are ready to start on the short block assembly.

New engine parts ordered and delivered; Pistons, Rings, Rod Bearings, Cam Bearings, Main Bearings, Gasket set, Freeze plugs, Timing Set, and Oil pump.  Valve Job is in progress so cylinder heads will be ready once the short block if assembled.

Few shots once short block is assembled.

Bottom End Rebuild

Two tone paint.

305 Chevy Short Block

GM 305 Short Block

Chevy 305 Long Block Assembly

Bolted on the Cylinder heads, timing installed, about to add the manifolds and covers next.

Remanufactured Chevy 305 Long Block Engine

Remanufactured Chevy GM 305 5.0L

GM Chevy 305 5.0 V8 Rebuilt Engine

Machine Services and Engine Parts Available.

305 Chevy Engine Ready for Pickup

GM 305 5.0L Engine Rebuilt

Do you need your Chevy 305 rebuilt?

Complete Engine Rebuilds- Long blocks.
Short Blocks- bottom end only.
Valve Jobs- heads only.

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

Engine Rebuild Kits Available.
Pistons, rings, bearings, gaskets, and more.

Remanufactured GM Chevy 305 Engine Rebuild Shop.

Chevy 305 5.0 Machine Shop GM 305 Rebuilt Engine GM Chevy 305 Engine Rebuilding Service Remanufactured Chevy 305 Engine 2019-06-09
Tags Chevy 305 5.0 Machine Shop GM 305 Rebuilt Engine GM Chevy 305 Engine Rebuilding Service Remanufactured Chevy 305 Engine
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One Comment

  1. Eugene V. Wong
    September 20, 20201:42 pm -

    Please provide an Estimate to stock or improved rebuild of my Engine 1978 Chevrolet C20 GM 350 CI, 4 BBL, California Smog Compliant. Connected to TH400 Automatic Trans. Trans in not to be included in work order. I am the original owner, purchased new at Los Angeles Chevrolet Dealership. Engine has approximately 120,000 miles.
    Continuing CA Smog Certification and Inspection Requirement.

    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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