440 Six Pack/6-BBL

The 440 Six Pack or Six Barrel piston and wrist pin sizes are often asked. Let’s answer, what size pistons and wrist pins are in a 440 Six Pack engine? The 440 Six Pack/6-BBL pistons are made to fit a 4.320″ engine bore size. The wrist pin is 1.0935″-1.0937″ diameter and 3.555″-3.575″ long. Continue reading…

Since the 440 Six Pack or Six Barrel used two different intake manifolds, many questions are asked about the torque specs. There are different specs for each one. Let’s examine them. The 1969 440 Six Pack or 6-BBL aluminum intake manifold bolts are torqued to 25 foot-pounds. The 1970 and 1971 cast iron intake manifold…

There are a few reasons why you would want to know the casting numbers for a 440 Six Pack engine. The following are the Mopar 440 Six Pack or Six Barrel cylinder head casting numbers: A few known Six Pack/6BBL engines were produced in 1972, although the numbers are extremely limited and rare. This article…

The 440 Six Pack or 6-BBL head torque sequence and torque specs for the cylinder head bolts is a question often asked. Factory 440 Six Pack or 6 Barrel cylinder head bolts are torqued to 70 foot-pounds. The head bolts are torqued in two steps, first 40 ft. lbs. then 70 ft. lbs., while following…

A popular topic about 440 Six Packs is what kind of camshaft it had from the factory. Let’s answer, what was the stock 440 Six Pack cam specs? The 440 Six Pack camshaft specs are a .450″ intake lift and .458″ exhaust lift. The duration is 268° intake and 284° exhaust. The durations @ .050…

The Six Pack or 6-BBL engine timing is a topic often asked by 440 owners. The following are the 440 Six Pack or 6-BBL timing specs for each year. This article will dive more into detail about each year including the factory initial, advanced vacuum, advanced mechanical and total timing. Also, the factory specs from…

The 440 Six Pack or Six Barrel carburetors are often talked about. One of the most common questions is their list numbers or date codes. Let’s answer, what are the 440 Six Pack carb numbers? The following are the 440 Six Pack carburetor numbers for all years: The remainder of this article provides detailed information…

Many Mopar owners wonder what their 440 Six Pack idle speed or RPM should be set at or what was set by the factory when new. The following are the 440 Six Pack/Six Barrel idle speeds for each year: Keep reading for more details about each year. In addition, this article will explain each fast…

Today the car manufacturers advertise the size of their engines in liters. It wasn’t always like this. During the 440 Six Pack era, engines were advertised in cubic inches. This makes many people wonder how many liters is a 440 Six Pack engine? A Mopar 440 Six Pack or Six Barrel engine is 7.2 L…

Its compression ratio is one of the specs which makes the Six Pack and Six Barrel the most powerful 440 engine produced by Chrysler. Let’s answer, what is the compression ratio of the 440 Six Pack? In 1969 and 1970 the 440 Six Pack compression ratio was 10.5:1. In 1971 the compression ratio was slightly…

The 440 Six Pack or 6-BBL main bearing clearances, main journal and bore size is often asked. Let’s take a close look at each one. The 440 Six Pack desired main bearing clearance for 1969-1970 is .0005″-.0015″ and .0005″-.002″ for 1971. The maximum allowed clearance is .0025.” The main bearing journal diameter is 2.7495″-2.7505″ and…

Knowing the Six Pack deck height may help when modifying the engine or doing a stock rebuild. Let’s answer, what is the deck height of a 440 Six pack? The deck height of a Mopar 440 Six Pack or 6-BBL is 10.725 inches. The deck height is the distance from the centerline of the crankshaft…

The 440 Six Pack or 6-BBL rod journal size is a question which comes up often. Let’s examine what the 440 Six Pack rod journal size is. The 440 Six Pack rod journal diameter is 2.374″-2.375.” The rod bearing bore size or outside diameter of the rod bearing is 2.5000″-2.5005.” This article will explain the…

Knowing the firing order of a Mopar is important when tuning an engine. Therefore, let’s take a close look and answer, what is the firing order of a 440 Six Pack or 6-BBL? The 440 Six Pack or 6-BBL firing order is 1-8-4-3-6-5-7-2. This article will inform you of all the cylinder number locations on…

Knowing how to identify a legitimate 440 Six Pack engine or block is crucial when inspecting one for sale, placing value on it or finding one for a car. For this reason many people ask, how to determine a real 440 Six Pack engine or block? 3 ways to identify an original 440 Six Pack…

I’ve been tracking the sales of 440 Six Pack engines for years. It’s interesting to learn the value and who wouldn’t want to buy one. For this reason many people ask, what is a 440 Six Pack engine worth? Original 440 Six Pack engines are worth from $13,999 to over $15,000. The worth of the…

There are certain phrases used in the muscle car world and the legendary Six Pack is one of them. Some people aren’t exactly aware what it means. Let’s answer, what is a Six Pack on a 440? A Six Pack on a 440 refers to the carburetion on a Chrysler 440 cubic inch displacement engine,…

I’ve been researching 440 Six Pack/6BBL cars for years. They’ve always been worth more money when new and today as a collectable. Let’s take a close look at how much an original 440 Six Pack car is worth. Restored 440 Six Pack cars with their original engine are worth from $91,300 to $1,100,000 with an…

I’ve been researching 440 Six packs, aka Six Barrels, for years and owned a car powered by one. The three two barrel carburetors are legendary, looked unbelievable and generated much power. For these reasons many people wonder what cars had a 440 Six Pack. The following cars had a 440 Six Pack: In 1972 only…

I’ve spent years researching 440 Six Packs and how fast they are. I’ve even owned a Six Barrel powered car, so I know how fast they can go. I researched original drag strip results when the cars were new. Here are the results. Here’s how fast a 440 Six Pack/6BBL is in the 1/4 mile…

The 440 Six Pack is one of the two most powerful Mopar engines to be produced for the street in the late 60s and early 70s. For this reason many people wonder about its horsepower and torque. In 1969 and 1970 the 440 Six pack engine was rated at 390 horsepower at 4,700 RPM and…

I’ve spent years researching and studying the 440 Six Pack engine. It is one of those engines known by every muscle car lover. This makes people wonder about their specs. Therefore, let’s answer, what are the 440 Six Pack specs? The 440 Six Pack has 440 cubic inches, a 4.32″ bore and 3.75″ stroke, 390…