Best Factory Big Block Chevy Heads

Best Factory Big Block Chevy Heads

The big block chevy heads are responsible for the power capability of the motor. They flow a large amount of air by the canted-valve cylinder heads and, the moving air makes power.

The original design of the chevy head refers to having a 26-degree intake valve angle of inclination to describe the big block’s valve angles. The 17-degree exhaust valves canted 4 degrees relative to the deck surface. This compound arrangement of valve angles helps the best factory big block chevy heads to point everywhere and work properly.

In this article, we will suggest to you some of the big block chevy heads, that maximize the power potential of your motor efficiently.

Peanut Port VS Oval Port

Much has been said about the differences between peanut port and oval port, and the only fact that everyone agrees with is that each design has its own strengths and weaknesses.

Peanut Port

Peanut port is a term for the short oval ports. The defining characteristic of a peanut port is that the peanut ports are wider than their length. Since the head flow is one of the key components to power production, the peanut port heads come with hardened seats and can still be modified with larger valves.

Oval Port

Big block chevy oval port heads are quite obviously taller than their width. Also, you can make more power with standard oval port heads. Oval port heads are capable of providing good performance up to 600 or more horsepower. Oval ports are often a better choice for a daily driver or street and strip car.

Differences

Port heads are classified as either high-performance or standard passenger cars. Peanut ports are the smallest oval ports term as peanut ports. But big oval ports are taller with better casting. Cast iron oval port BBC heads are better than the peanut ports for a daily drive.

Open Chamber VS Close Chamber Heads

Open chamber and closed chamber cylinder heads are different in combustion chamber capacity. Although, opened chamber cylinders offer easy airflow and the close chamber cylinder has better performance.

Open Chamber Head

Open camber heads have spark plug areas pushed to meet the edge of the cylinder to create more room in the chamber. In an open chamber, there are fewer materials around the valves to allow easy flow. Open cylinders have lower compression ratios between 118 CC to 123 CC of capacity. Also, the quench areas are smaller and on one side of the head.

Closed Chamber Head

Closed chamber BBC heads have higher compression ratios. And the increased compression is due to smaller flow capacity. Close chamber cylinders have between a 100 cc to 112 cc capacity and, the quench areas are on both sides of the closed head chamber.

Differences

Closed chamber cylinder heads are a good option for built vehicle engines. Added combustion in the BBC closed chamber aluminum heads produces more power in the motor. Open chamber cylinder heads have smaller quench areas to one side of the head, which means fewer emissions.

Things To Consider Before Buying Factory Big Block Chevy Heads

Factory big block chevy heads are one of the most addictive substances. Squeezing the maximum amount of power out of an engine is the main purpose of a big block chevy head. But selecting the right set of cylinder heads can be tricky. Today, we are going to point out the basic things to consider before buying the best aluminum heads for 496 BBC engine.

Know Your Application

Chevy heads have a variety of chamber sizes, runner sizes, valve sizes, and other variables. So you need to make sure what will be optimized for your application. Because every build is going to be different and has unique requirements for the engine.

Have A Budget

First, you need to think about how much you want to spend before you shop for cylinder heads. If your application is not going to take full advantage of CNC-ported heads, you could save a bit of your hard-earned money. So make a budget first. Check our article on the chair for the L5 S1 herniated disc.

Know Your Cubic Inches

Before buying cylinder heads, you have to know the cubic inches of your engine. If you don’t select cylinder heads that match your engine size, there will be problems. Because if you get blockheads that are too big or small for your engine, the velocity of air charge will be ruined.

Know Your Compression Ratio

Compression ratio is used to determine the chamber volume and piston volume. So you need to decide if you are going to use pump gas, race gas, or other fuel to know what compression ratio you will be targeting.

Make Sure The Hardware Matches Your Application

Cylinder heads can purchase as bare casting, or you can buy them ready to bolt onto your engine. If you are going to purchase them ready, it becomes essential to match the hardware to your application. Unmatchable hardware parts can ruin your engine.

As you can see, purchasing the right set of cylinder heads takes careful thought and planning. Hopefully, these tips will make it easier for you to pick out your right set of big block chevy heads.

Best Factory Big Block Chevy Heads Review

Big block chevy heads are used to make the engine more powerful. It will increase the airflow of the engine to squeeze the maximum power out of the engine. And in this segment, we will review the top five factory big block chevy heads for you.

1. Speedmaster Factory Big Block Chevy Heads | Aluminum Cylinder

If you are looking for a beautifully assembled aluminum cylinder head, you can try the Speedmaster factory big block chevy heads. This CNC aluminum cylinder head big block chevy 454 w/solid roller.

The Speedmaster big block chevy heads offer a small cross-section to increase the incoming air velocity on the engine, which results in great driveability and power. These are assembled cylinder heads with a 125cc combustion chamber and 360cc intake runners including valves.

If you want a cylinder head with polycrystalline diamond for a smooth finish, then you can try the ADV Cylinder Heads factory big block chevy heads. It ensures the perfect air compression. Check our article on the recliners for lumbar support.

Features To Be Excited About

Speedmaster PCE281.2039 factory big block chevy heads are CNC aluminum cylinder head big block chevy 454 w/solid roller. It increases the incoming air in the engine to make power. It also has a 125cc combustion chamber and 366cc intake valves.

Cons To Consider

We have not found any drawbacks in the Speedmaster PCE281.2039 factory big block chevy heads. It is giving good service to its customers.

Key Features

  • CNC aluminum cylinder
  • Assembled heads
  • 125cc combustion chamber
  • 366cc intake valves

2. Speedmaster Factory Big Block Chevy Heads | 119CC Combustion

A big block chevy head is all we need to increase the power in the motor to make it more drivable. And keeping this in mind, Speedmaster has introduced the factory big block chevy heads aluminum cylinders.

This cast aluminum cylinder is 454 w/hydrualic flat tappet. These assembled cylinder heads have a 119cc combustion chamber and 320cc intake runner rectangle port. These big block heads help to increase the engine power to work thoroughly.

If you are looking for a bare cylinder head that is ready for setup, then you should try out the Assualt Racing Products factory big block chevy heads.

Features To Be Excited About

Speedmaster PCE281.2031 factory big block chevy heads are aluminum cylinder heads with 454 w/hydraulic flat tappets. It has a 119cc combustion chamber with a 320cc intake runner rectangle port.

Cons To Consider

We have not found any demerits in the Speedmaster PCE281.2031 factory big block chevy heads. It is doing good to satisfy its consumers.

Key Features

  • 454 w/hydrualic flat tappet
  • 119cc combustion chamber
  • 320cc intake valves
  • CNC aluminum cylinder

3. ADV Cylinder Heads Factory Big Block Chevy Heads | PCD Milled

If you are looking for a smooth finish aluminum head, you can go for ADV Cylinder Heads, the best factory big block chevy heads. It has a polycrystalline diamond to ensure a smooth finish for aluminum heads.

These dissembled big block chevy heads are performing valve jobs with all required angles and the vacuum test seals to ensure perfect air compression. It can be thoroughly cleaned via a hot tank and test the pressure to confirm casting integrity. You can also install new valve seats if necessary.

But if you want a cast aluminum cylinder with a hydraulic flat tappet, then you can give it a try to the Speedmaster PCE281.2031 factory big block chevy heads.

Features To Be Excited About

It is a remanufactured GM GMC chevy head with a Vortec cast to confirm casting integrity. The valves are also performed with all required angles, and it has PCD milled for aluminum heads.

Cons To Consider

We have not found any defects in the ADV Cylinder Heads factory big block chevy heads. It is doing everything to satisfy its customers.

Key Features

  • 3505.7 Vortec cast
  • Polycrystalline diamond milled
  • Vacuum tested seals
  • New valve seat installation

4. PCE Factory Big Block Chevy Heads | Track Proven

PCE by Speedmaster big block chevy heads are 435 cylinder head combo to increase tremendous power in the engine. Speedmaster creates unique DNA items inspired by the blend of old and new technology.

PCE factory big block chevy heads are aluminum cylinder assembled style. It has a 119cc combustion chamber and 320cc intake runner volume. It is a track-proven product to survive the longevity of the road. It has a rectangular intake port in the standard location.

If you want to try out an aluminum cylinder head that is beautifully assembled, then you can go for the Speedmaster PCE281.2039 factory big block chevy heads.

Features To Be Excited About

PCE by Speedmaster is a factory big block chevy head with a top-end engine combo kit with a 454 hyd roller cylinder head. It has a 119cc combustion chamber and 320cc intake runner volume. It is an aluminum cylinder head with a natural finish.

Cons To Consider

These PCE factory big block springs can not be used in a flat tappet. You can use these sprigs for hyd roller cams.

Key Features

  • 435 cylinder head combo
  • 119 combustion chamber
  • Aluminum cylinder heads with natural finish
  • Top-end engine combo kit

5. Assualt Factory Big Block Chevy Heads | 122CC Combustion

Are you looking for a bare cylinder head that is ready for your valve train setup? Well, Assualt Racing Products has come with a big block chevy bare aluminum cylinder head.

These factory big block chevy heads have a 122cc combustion chamber and 330cc intake port volume. It also has 2.250” intake valves and 1.880” exhaust valves. These aluminum cylinder heads pair valve train set up and power up the motor.

If you are looking for a track-proven product to survive the road in a better way, then you should try out the PCE factory big block chevy heads. It is a new item by the blend of old and new technology.

Features To Be Excited About

Assault Racing Products factory big block chevy heads are bare aluminum cylinder heads ready for valve train setup. Its 122cc combustion chamber and 330cc intake port volume help to power up the engine to increase longevity.

Cons To Consider

We have not found any drawbacks in the Assualt Racing Products factory big block chevy heads. It is doing good in the marketplace.

Key Features

  • Bare cylinder head
  • 122cc combustion chamber
  • 330cc intake port volume
  • 11/32” valve stem dia

Frequently Asked Question & Answer (FAQ)

1. What degree are big block chevy heads?

The big block chevy heads are 26-degree intake and 17-degree exhaust valve canted 4 degrees. With the Victor heads, you can change the intake valve angle and exhaust valve angle.

2. Which is better? A small block or a big block?

Big block engines are large and produce more power. Small block engines are smaller for better handling and acceleration. But recently built models can be just as powerful as big-block engines.

3. Is aluminum block better than cast iron block?

Modern aluminum blocks are pretty strong, but a properly built iron block is much stronger. Because iron is more rigid than aluminum, it won’t deflect or distort as much under high cylinder pressures.

4. Do aluminum heads make more power?

Aluminum heads help to dissipate the heat faster. It allows higher compression ratios with less detonation. The cooler head also delivers a cooler air mixture to the combustion chamber and can make more power.

5. Are aluminum heads worth the money?

Yes, there are some of the best budget BBC aluminum heads available in the market. They are repairable, easy to port, and give a nice weight reduction. So aluminum heads are worth the money.

Final Word

Big block chevy heads are most popular to make more power in the engine. But selecting the right cylinder heads is not that easy. You have to acknowledge some basic things before choosing the best factory big block chevy heads. And, we hope this article gives you all the necessary insights to select the right one for your engine.

For more queries, keep in touch with us in the comments.

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