Engine Block

Block Cleaning/Checking

Cylinder Sleeving

Repairing Damaged Cylinders

Main Cap Alignment and Modifications

Accuracy of the Main Bearing Caps

Camshafts, Cam Tunnel, and Lifter Modifications

Machining for Larger Cam Cores and Roller Bearings

Rotating Assembly

Accuracy at the Heart of the Engine

Cylinder Head Work

Accurate Fit for Optimal Performance

Engine Block Honing

For Optimum Piston Ring Seal

Dyno Tuning

Maximize Your Engine’s Power

Engine Block Services

Block Cleaning/Checking

Hot Tanking

Hot Tank Service

$00.00

Hot Tanking engine parts are important because it's difficult to measure them and inspect them for defects. After disassembly, the block is cleaned in a solvent tank then the cylinders, main caps, and lifter bores are checked for taper and out of round.

Magnaflux service

Magnaflux Engine Block

$75.00

Magnaflux testing examines the block to find any cracks, pits, voids, holes, or other weaknesses not seen by the naked eye. This is important to know, as to not waste valuable machining dollars on a weak block. Aluminum cylinder heads are susceptible to cracks or leaks after a head gasket failure.

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Sonic Check Cylinder Walls 

$80.00

Sonic testing process that determines the thickness of the cylinder walls to ensure safe boring of the cylinders without exceeding minimum recommended thickness.

Boring a block

Block Boring 

$150.00 Bore Cylinders up to 0.040-inch
$290.00 Bore Cylinders more than 0.040-inch
$xx.00 inline six-cylinder block
$xx.00 V8 block

Boring engine block uses a machine to enlarge the diameter of the cylinders. A high-performance engine or worn engine will often result in cylinders that are out of round. That negatively affects ring seals, causing lower compression and a loss of power. Boring the engine perfectly trues the cylinders back to round. Most high-mileage engine rebuilds require a mild boring. Boring will also increase engine displacement.

Cylinder Sleeving

Repairing Damaged Cylinders

Engines with excessive corrosion or damage to the cylinder walls may need to be repaired with a new cylinder sleeve. Also, newer engines with coated cylinder liners may need to be sleeved for high horsepower applications. The process involves boring out the cylinder and installing the sleeve(s) as necessary. Once installed, the sleeves will be bored and honed to their final size and finish.

Bore and Install Cylinder Sleeve with Finish Bore 1-2

$140.00


Must have CNC setup charge

Bore and Install Cylinder Sleeve with Finish Bore 3-8

$105.00

Must have CNC setup charge

Main Cap Alignment and Modifications

Accuracy of the Main Bearing Caps

Separate processes to ensure the size and shape of the main bearing caps. Most blocks in good condition will require only a basic line hone with a mildly abrasive brush to clean the main cap and block saddle surfaces prior to assembly. In cases where damage such as a spun bearing or severe detonation occurred, the main bearing surfaces may be out of round and the main caps need to be replaced. The new caps need to be machined to match the block, then the entire main bearing surface will be bored and honed.

a close up of a machine

Brush Line Hone

$95.00

Typically this process requires the removal of the last .002 thousandths from the bore achieving the correct for proper ring application. Making sure the honing finish is properly done is essential to ensuring your engine will face the performance demands with reduced friction and heat, thus increasing engine life. *Edited by A.B

Standard Align Bore

Standard Align Bore

$115.00

The standard align bore process usually uses a boring bar made out of rigid steel or carbide bar containing one or more cutting tools. The engine is clamped in place and the rotating bar is fed through all of the journals at a constant feed rate. *Edited by A.B

Cut Main Caps and Align Bore and Hone

Cut Main Caps and Align Bore and Hone

$160.00

Separate processes to ensure the size and shape of the main bearing caps. Most blocks in good condition will require only a basic line hone with a mildly abrasive brush to clean the main cap and block saddle surfaces prior to assembly. In cases where damage such as a spun bearing or severe detonation occurred, the main bearing surfaces may be out of round and the main caps need to be replaced. The new caps need to be machined to match the block, then the entire main bearing surface will be bored and honed.


Engine main cap bore

Machine Groove in Main Cap Bores

$90.00 SM Ford
$135.00 all others

This is a process to machine a groove in the main cap saddle to aid in increasing oil supply to the main bearings. It is beneficial in performance applications, especially with increased bearing clearance. (must have CNC setup charge)

Camshafts, Cam Tunnel, and Lifter Modifications

Machining for Larger Cam Cores and Roller Bearings

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Hone Camshaft Bore

$115.00

This process cleans and preps the cam journals prior to installation of the camshaft bearings.

a close up of a metal sink

Install Cam Bearings

$60.00

Installing cam bearings requires special tools and skill to accurately line up the bearings with their respective oil galleries.

a desk with a computer on a table

Front and Rear Cam Bore Grooves

$65.00

Allows for additional oil supply to the camshaft bearing surfaces.

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Camshaft Face Surfacing

$85.00

This service is rarely performed. We resurface the face of the camshaft. This provides a flat and clean surface for mounting the front plate of the camshaft.

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Enlarge Cam Tunnel to 2.030-inch (+.010 STD SB Cam Common Bearings)

$280.00

Overboring of the cam tunnel when extra clearance is needed in cam tunnels is a rare service.

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Prep and Bore Cam Tunnel for Needle Roller Bearings- Finished to Size, No Hone (any size)

$420.00

Prep and enlarge cam tunnel for installing needle roller style cam bearings. This service is performed often on a large variety of applications. Engines built for Pro Stock, street use, LS engines, dirt, or almost any type of engine can benefit. It's a tedious process that can take up to eight hours. A roller cam provides better performance, oiling, and oil control.


an image involving sitting table computer

Prep and Bore Cam Tunnel for Needle Roller Bearings- Finished to Size, With Hone (any size)

$495.00

For installing needle roller style cam bearings. This service is performed often on a large variety of applications. Engines built for Pro Stock, street use, LS engines, dirt, or almost any type of engine can benefit. It's a tedious process that can take up to eight hours. A roller cam provides better performance, oiling, and oil control. For added performance and reassurance, we can finish the job with a hone.

Rotating Assembly

Accuracy at the Heart of the Engine

Magnaflux Crankshaft

Magnaflux Crankshaft

$50.00

Inspection of the crankshaft for cracks or other damage. This is important when using a used crankshaft to prevent any engine damage after assembly.


a pot on the stove

Add Keyway to Crankshaft Snout

$120.00

Machine a groove to create a crankshaft keyway to accept a woodruff key. Can be performed on OE cranks with no keyway or to add a second keyway for supercharged applications.

Hone Connecting Rods

Hone Connecting Rods

$65.00

This process cleans the connecting rod bearing surface and ensures the roundness of the big end of the connecting rod.


V8 Crankshaft Balancing Service

V8 Crankshaft Balancing Service - Heavy Metal Extra

$200.00

Crankshafts are balanced to within XX grams of the weight of the rotating assembly. This ensures smooth operation, longevity, and mitigates premature wear of the bearing surfaces.

Block prep for Stroker Crankshafts

Block prep for Stroker Crankshafts

$80.00

When installing a crankshaft with increased stroke, the inside of the crankcase and oil pan rails may need to be notched to clear the larger crank counterweights and the bigger swing of the connecting rods.

Cylinder Head Work

Accurate Fit for Optimal Performance

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Cleaning and Inspection

$30.00 per head (cast iron and aluminum)

Visual inspection and Magnaflux testing cast-iron cylinder head to check for cracks. Aluminum heads are pressure tested with compressed air while submerged in a tank of water to verify there are no leaks from the coolant passages, intake and exhaust runners, and combustion chambers.

Cylinder Head Resurfacing

Cylinder Head Resurfacing

$60.00 each

Similar process as engine block decking, surfacing the cylinder heads ensures a perfectly flat mounting surface with the proper finish to promote sealing to the head gasket.

a close up of a machine

Write, Measure, and Cut Valve Job

$360.00

Our performance cylinder head work includes 3 angle valve job expertly performed on our Serdi machine. A good valve job dictates the quality of airflow through the cylinder heads and into the combustion chamber. All valves are checked to verify the complete seal to the valve seat.

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Machine Valve Seat Angles Intake/Exhaust

$20.00 for each valve

This work matches the angle of the valve seat to the valves. It ensures proper sealing of the valve to the valve seat when closed and aids in airflow into the engine as the valves open.

Engine Block Honing

For Optimum Piston Ring Seal

torque plate hone

Torque Plate Hone

$280.00

For better quality and precision, an engine block torque plate is used for honing. The torque plate simulates a head being bolted to the block. The block is stressed similar to after assembly. Honing with a torque plate is more important for some engines than others.


torque plate

Torque Plate Hone (Aluminum Alcohol or Fuel Block)

$420.00

For better quality and precision, a torque plate is used for honing. The torque plate simulates a head being bolted to the block. The block is stressed similar to after assembly. Honing with a torque plate is more important for some engines than others. All Aluminum Alcohol or Fuel blocks require more setup time and precision. The machining process is different from other race or street engines.

a machine on the stove

Hone Alcohol Block (Without Torque Plates)

$395.00

For better quality and precision, a torque plate is used for honing. The torque plate simulates a head being bolted to the block. The block is stressed similar to after assembly. Honing with a torque plate is more important for some engines than others. All Aluminum Alcohol or Fuel blocks require more setup time and precision. The machining process is different from other race or street engines.


Dyno Tuning

Maximize Your Engine’s Power

Engine Dyno Carb

Dyno Engine | Carbureted

$325.00 for a 4-hour session
$600.00 for an 8-hour session

Professional engine and dyno service include labor to prepare and mount the engine to the dyno. This service includes preparation and a break-in or timing procedure, where the timing is slowly increased between runs. Tuning and the service are based on time, with a full-day minimum. Minimum half day (for setup). Fuel not included.

EFI Engine Tuning

Dyno Engine | EFI System

$700.00 for an 8-hour session

Professional engine and dyno service include labor to prepare and mount the engine to the dyno. This service includes preparation and a break-in or timing procedure, where the timing is slowly increased between runs. Tuning and the service is based on time, with a full-day minimum. EFI tuning requires more technical knowledge and labor. Call for quotes, unique for each system.

a person sitting at a train station

Chassis Dyno

$150.00 per hour

The car dyno rates and tests your vehicle's horsepower and torque under load. Our dyno can handle high speeds and loads, giving a real-world look at power. This rate includes basic tuning and must incorporate time loading and unloading of the vehicle from the dyno. Minimum one hour for setup.

Contact Us


ADDRESS

102 S.Iredell Industrail Park Rd.
Mooresville, NC 28115

EMAIL
promotor.engines@gmail.com

PHONE
(704) 664-6800