Engine OverhaulEngine Overhaul

Chevy 350Chevy 350

Remove Engine Remove Engine

Place engine securely on an engine stand

Remove AccessoriesRemove Accessories

Remember to take photos- bag and label the parts and fasteners

Remove Intake and Valve Remove Intake and Valve train Componentstrain Components

Label the pushrods – this is to identify if you find a bent one later to look at the other parts for that cylinder.

Remover Cylinder HeadsRemover Cylinder Heads

Remove the head bolts in reverse sequence--- Check for damage especiallybetween cylinders

The Engine’sIdentificationNumber isFound Here

Remove Lifters Remove Lifters

Rotate the engine – it will pop the lifters up for easy of removal

Ridge Ream Each Ridge Ream Each CylinderCylinder

A ridge develops over time and must be removed to allow the piston to be removed

Remove all Ridges Remove all Ridges

Two wrenches opposite of each other give you good control

Remove Oil Pan and Remove Oil Pan and InspectInspect

This is a four-bolt main – Pay attention to the oil pickup screen, look for debris

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Mark the main and rod capsfor reinstallation

Use number and Letter sets

Remove Gaskets and Scrape Remove Gaskets and Scrape Away CrudAway Crud

Wiggle out the oil dipstick tube, it will be damaged if you don’t.

Remove Balancer and Front Remove Balancer and Front CoverCover

Loosen the Main BoltsIn Reverse Sequence

Remove the Harmonic balancer with the proper tool or you will damage it.

Remove TimingGears and ChainToss Them

Remove Pistons and Remove Pistons and Main CapsMain Caps

Tap the pistons out with a plastic hammer– tap the mains from front to back to loosen

Remove Crank and Remove Crank and CamshaftCamshaft

Knock out the Freeze plugs Clean out water Jacket

holes

Remove Camshaft Remove Camshaft BearingsBearings

You need a specific tool for this– clean out all bolt holes with a tap

Clean the Internal Area Clean the Internal Area

Especially the oil galleries

Clean Out Lifter AreaClean Out Lifter Area

A long rod tipper with a rag soaked in cleaner works well for areas you can’t get your hand

Inspect Cylinder headsInspect Cylinder heads

Check everywhere, the heads are very prone to cracks and damage.

Cracks- You Don’t Want To Cracks- You Don’t Want To See ThisSee This

Clean the HeadsClean the Heads

A power brush works well and inspect head for cracks again, cover and plug the ports and valves if you don’t rebuild the heads. (why wouldn’t you?)

Spring Tool and Valve Spring Tool and Valve ToolTool

You will need to measure springTension and height

Cylinder Head Cylinder Head DisassemblyDisassembly

Use a “C” valve tool to remove valves—Keep everything in order

Inspect Valve, Springs, and Inspect Valve, Springs, and RotatorRotator

Inspect For CracksInspect For Cracks

Check Here

Valve GrindingValve Grinding

This resurfaces thevalve angle

Cut & Check Valve SeatCut & Check Valve Seat

Use Prussian Blueto check the contact between valve and seat

Valve AnglesValve Angles

Seat 45 degrees

15 degrees

60 degrees

Clean and Inspect Clean and Inspect PistonsPistons

At times you can reuse pistons, replacing them will improve the rebuild

Clean and Inspect the Clean and Inspect the Entire EngineEntire Engine

Preparation for PaintingPreparation for Painting

Acquire a Rebuild KitAcquire a Rebuild Kit

This kit is a Mater rebuild kit complete with the crank rods and pistons.You can get a rebuild kits without these items or smaller camshaft and valve train kits

Paint Heads Paint Heads

Cover valve area and block ports

Paint BlockPaint Block

Cover internal parts, you don’t need to paint where the oil will be, use high heat paint

Measure, Measure, Measure, Measure, MeasureMeasure

Measuring throughout the rebuild process will insure you buy the necessary items

Install CamshaftInstall Camshaft

Take care with the cam and it’s bearings when installing. Over lube this as you install.

Install Lifters Install Lifters

Lube the lifters heavily

Measure Ring GapMeasure Ring Gap

This gap needs to be precise, file the gap to specs

Install and Bolt Main Install and Bolt Main CapsCaps

You will want to confirm the inside diameter is correct and round

Make sure youline up the oils holefor the bearings

Bolt and Torque CrankBolt and Torque Crank

Use specifications and sequence for this and anything else in engine!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Over lubeEverything

Use Assembly Grease

Install Freeze Plugs

Fit the RingFit the Ring

Protect the rod

Use wood in the vise

Lube the Rod BearingsLube the Rod Bearings

Use assembly grease

Oil the ringsUse engine oil

Prep Pistons for Prep Pistons for InstallationInstallation

Align the ring gaps---in thirds

Install PistonsInstall Pistons

Use a plastic hammer handle

Use a ring Compressing tool

Install pistons one at a time and torque to specs

Installing Timing ChainInstalling Timing Chain

Mark the aligning Points with white outAnd align them for proper gear timing

Clean and Prep the Cylinder Clean and Prep the Cylinder HeadsHeads

Some people send the heads out tobe reworked, or buy replacement heads

Bolt and Torque the Bolt and Torque the HeadsHeads

Use Specs and Sequence Make sure you keep

the gaskets aligned

Install Rockers and Install Rockers and PushrodsPushrods

Use plenty of lube, this is the last area that gets oil on startup

Adjust Rockers ArmsAdjust Rockers Arms

Adjust the slack out, turn the rod in your fingers and turn adjuster until the rod stops spinningDon’t over do this.

Prepare the Front CoverPrepare the Front Cover

Check the timing marks again just to make sure. Use a little extra sealer in the corners.

Install Front CoverInstall Front Cover

Lube seal as youplace the cover over the crank

Use specs

Install Harmonic Install Harmonic BalancerBalancer

Use specs

Prep For Intake ManifoldPrep For Intake Manifold

Use a good sealer here to help the intake seal. Take care to keep gasket aligned

Place the GasketsPlace the Gaskets

Use a good sealer here to help the intake seal. Take care to keep gasket aligned

Use a little extra sealer in the corners

Install intake and Install intake and DistributorDistributor

You can wait for the distributor until later, if so covet the openings in the intake!!!!

Install Oil Pump and Install Oil Pump and FilterFilter

Install the oildipstick

You needTo adjustThe screen.How?

Wires Now or LaterWires Now or Later

Wire Looms are Wire Looms are ImportantImportant

You may wait untilexhaust is installed

Install Oil PanInstall Oil Pan

Use a good sealant here

Don’t turn engine Over if carb is installed

Install a fuelpump also

Install AccessoriesInstall Accessories

Valve covers

Exhaust manifolds

Water pump

Carburetor

Engine StorageEngine Storage

Bag and oil the engine if you plan to Bag and oil the engine if you plan to store the engine. store the engine.

Store engine in a place that is dry.Store engine in a place that is dry. You can place it on a wood skid to You can place it on a wood skid to

recover you stand.recover you stand.

Engine Break InEngine Break In Lots of conflicting info out there.Lots of conflicting info out there. Mr. B way.Mr. B way.

Spin the oil pump shaft with drill and get oil Spin the oil pump shaft with drill and get oil pressure in engine-replace distributorpressure in engine-replace distributor

Start engine, spot time the distributor and Start engine, spot time the distributor and check for leaks and make adjustmentscheck for leaks and make adjustments

If no problems, run engine at idle for two If no problems, run engine at idle for two minutes, the change rpms, two minutes each minutes, the change rpms, two minutes each rpm range.rpm range.

Don’t exceed four thousand rpms for the first Don’t exceed four thousand rpms for the first five hundred miles. Change oil at 500 miles. five hundred miles. Change oil at 500 miles. Them at 2000Them at 2000

Misc. Misc. Make sure you clean and inspect everything Make sure you clean and inspect everything

through the rebuild process, this will prevent through the rebuild process, this will prevent you from rebuilding a cracked block for you from rebuilding a cracked block for instance.instance.

Follow the book, specs, procedures, tests, info, Follow the book, specs, procedures, tests, info, measurements and sequences are all critical for measurements and sequences are all critical for success.success.

Organization is key.Organization is key. Replace all parts if you can.Replace all parts if you can. Sorry to say, it is cheaper to get a “crate” engine Sorry to say, it is cheaper to get a “crate” engine

now days- saves time, money and worry. They now days- saves time, money and worry. They even have a warrantee that you can’t provide.even have a warrantee that you can’t provide.