Common questions

Is the Dodge 5.2 a good motor?

Is the Dodge 5.2 a good motor?

The 5.2 is a great motor. Easy to work on, lots of aftermarket (not as much as a 302 or 350, but a close third), and quite tough. Fuel economy isn’t as good as the 4.7 and power (stock) is about the same.

How much HP does a 318 have?

The power ratings of the new LA-series 318 were exactly the same as those for the old polyspherical-head design, 230 hp and 340 lb-ft….Premium Member.

Specifications (net) 318 (2 barrel) 340 (4 barrel)
1977 horsepower 145 @ 4,000
Torque, 1971 (SAE net) 260 @ 1,600 305 or 310

Is the Dodge 318 a good engine?

The Good And The BadIn terms of durability, the Mopar 318 is robust. The bottom end of most 318 engines used a cast-iron crankshaft, and though these are not as desirable as a forged crank, the cast-iron piece has proven to be very reliable.

How much HP does a 5.2 Magnum have?

Magnum 5.2 L V8 At the time of its introduction, the 5.2 L Magnum created 230 hp (172 kW) at 4,100 rpm and 295 lb⋅ft (400 N⋅m) at 3,000 rpm. Production of this engine lasted until 2003, when it was completely replaced by the newer 4.7 L PowerTech SOHC V8 engine.

Are 318 and 360 heads the same?

Registered. Late model Magnum 318/5.2 and 360/5.9 heads are the same, as somebody else mentioned earlier. Same chamber size, same port size, same everything.

What engine is better 318 or 360?

the 318 engine has been known to be very reliable and I haven’t had any problems with mine and the 360 has a little more power and may get a little worse gas mileage but will move the truck a little better, but both a great for towing.

How do I know if I have a 318 or 360?

But can you tell by looking at the motor? The 360/5.9 is externally balanced, so if you look at the harmonic balancer pulley you will see a weight cast into the design. The 318 is internally balanced like most engines are, and its harmonic balancer pulley will be ‘symmetrical’ without any balance weight built-in.

How can I get more power out of my 318?

IF you just want to make BETTER power than a tired ass old 318 has, that’s easy. Have the stock heads rebuilt with a 3 angle valve job and new guides, possibly even shaved for a little more compression, get a set of hooker headers, Edlebrock intake, a medium street strip cam say about 280 degrees of duration.

What is a 318 engine?

The Dodge 318 V-8 engine was produced by the Flint, Michigan-based Chrysler Corporation, now Chrysler LLC, from 1967 to 2002. The engine was remarkably efficient, durable and proved to be Chrysler’s mainstay for many of its vehicles over the decades.

How heavy is a 318 V8?

Engine Weight
Mopar 273-318-340 “LA” V8 525
Mopar 360 “LA” 550
Mopar 400 “B” V8 620
Mopar 413-426W-440 “RB” V8 670

How do I identify a 318 engine?

Displacement Identification A quick examination of the 318 shows that the distributor is at the rear of the engine, next to the firewall. Stamped on a pad on the left front area of the engine block under the left cylinder head is “318” to identify its cubic inch displacement.

What is a 318 Poly?

The Lowly 318 Poly Engine Gets No Respect. This name came about due to the polyspherical nature of the head design; it’s not a wedge design like most other non-Hemi engines. Instead, it used a canted-valve or semi-Hemi layout, much like race engines use today.

How much does it cost to rebuild a 318 engine?

dla4567 FBBO Gold Member FBBO Gold Member. I rebuilt a 318 last year. Cost me around $3000 and is around 300 hp. Could have done it cheaper but I replaced everything including carb, headers, rockers and shafts, etc.

How can you tell a 318 Poly?

The Poly head engine is easily identified by its valve covers scalloped design to fit around the exhaust valve springs on the exhaust sides of the engine. The 318 A series Poly head engine was produced from 57 through 67 when it was replaced with the LA series 318 engine.

Is a 318 A big block?

At first,there is no “big block 318″. (correct name is either 318-A Poly, or 318-A Wide-block) used up to 1966. Folks just started to call the old 318 ” bigblock” when the new light version,( 318 LA ) came in 1967.

What year did the 318 come out?

1957

What is a poly motor?

The Polyspheric or Poly engines were V8 engines produced by Chrysler from 1955 to 1958 as lower-cost alternatives to the Hemi engines. These engines were based on the Hemi engines, using the same blocks and crankshaft parts, but completely different cylinder heads, pushrods, exhaust manifolds and pistons.

What does Polysphere mean?

Noun. polysphere (plural polyspheres) (mathematics) A product of spheres.

How are cylinder heads made?

Cylinder heads are made from either cast iron or cast aluminium. The interior of a cylinder head is a complex network of oil galleries and coolant passages, even more complex than the engine block. To form these interior cavities, heads are often cast using the lost-foam casting technique.

What is an L head engine?

L-head (flathead) refers to the pushrod valvetrain configuration in which the valves are placed in the engine block beside the pistons. The design was common on early engine designs, but has since fallen from use. Generally L-head engines use a small chamber on one side of the cylinder to carry the valves.

How do I cast my own engine block?

How to Sand Cast an Engine Block

  1. Get everything ready for the pour. Arrange a time and date for your team to help.
  2. Make a mold of the engine to be cast. Spray the surface of your disassembled engine block with graphite spray.
  3. Add enough aluminum to the crucible to fill it.
  4. Begin the pour.
  5. Break the mold after it has cooled one to two days.

What is the top of the engine called?

In an internal combustion engine, the cylinder head (often informally abbreviated to just head) sits above the cylinders on top of the cylinder block. It closes in the top of the cylinder, forming the combustion chamber. This joint is sealed by a head gasket.

What parts are attached to the engine front end?

Terms in this set (24)

  • Front End Engine. consists of the parts that attach to the front of the engine.
  • Harmonic Vibration.
  • Vibration Damper – Harmonic Balancer.
  • Inertia and Rubber ring.
  • Dual-Mass Harmonic Balancer.
  • Crankshaft Pulley.
  • Camshaft Drive.
  • Timing Gears.

What is a bottom end?

Also called (in vertical engines): bottom end. the larger end of a connecting rod in an internal-combustion engine. Compare little end. 2. the bearing surface between the larger end of a connecting rod and the crankpin of the crankshaft.

How much horsepower do forged pistons add?

For most applications, an increase of a full-point in compression ratio generally results in a four percent increase in horsepower and torque. Third, aftermarket forged pistons, when combined with a quality set of piston rings, will generally deliver an improved ring seal.

What is a bottom end rebuild?

The bottom end refers to the conrod, and is Basicly a full rebuilt. The conrod and all bearings are normally replaced at this point, and on average most people do a bottom end every 2nd top end they do.

What’s the bottom end of a motor?

All of the components that make up the bottom end of a motor are contained in the engine block. The cylinder bores are fired by the fuel combusting and the pistons move up and down in them. It also holds the camshaft on some engine designs.

How do I know if my bottom end is bad?

Any vertical movement in the crank bearings is bad, you can check this by removing the flywheel cover and pushing up/down on the flywheel. Also bad is any vertical movement at the rod/crank pin, but this will require removing the cylinder to inspect.