A redesigned cast aluminum water pump with an improved impeller, bearing, and seal pumps more than 100 gallons per minute on the V8 with less engine drag than older designs. Even better, there is no cam break in, worry over zinc levels in the oil, or other flat tappet hassles to worry about. We have 2 types of lifters. Magnum engines have some of the best flowing heads Mopar has ever released. Valve covers are held on by five screws; it is easy to overtighten them.
A four-barrel version became available in 1973. Fuel Regular Regular Premium The 1969 model year brought a more reliable manifold heat control valve, using replaceable bushings for the valve shaft and a replaceable stainless steel internal seal to shield the bushings. Some aftermarket intakes are double-drilled to fit either engine. This makes spending money to upgrade them dicey, at best. This is a good start, and it is a double roller. Valves are arranged in-line and and inclined 18 degrees. The serpentine belt aslo uses uses considerably fewer parts for accessory drive support than older engines did 24 vs 85 parts on the V8 , and the new belt uses an automatic belt tensioner to reduce belt maintenance.
Even the modestly designed Plymouth Valiant, Volare and Aspen received the 318. Thanks to Bill Watson, Joshua Skinner, Dan Stern, Steven Havens, Jim Forbes, and Peter Duncan. The valvetrain was upgraded to include hydraulic roller lifters, however cam specs remained essentially unchanged. There were many differences between the 340 and 318 apart from the bored, which made the 340 far more powerful than the everyday 318. So, what if the head is cracked or broken and must be replaced? With no other change to the engine but stroking, the torque will increase considerably and the horsepower very little. Bore and stroke was 4 in × 3.
Do you want to change something in the engine? There are many options like the small main 3. We will have cams to order without the hassle of having a custom grind. At the rear of the camshaft was cut a set of helical gear teeth, these being used to spin the distributor. As long as your original lifters are in good condition they can be re-used as well. The 360 followed in 1971. These lobes provide very quick valve action, giving 0. It had high-flow heads, big ports, a two-level intake manifold, and a six-barrel option three two-barrel carbs.
I have a bone stock 1972 318-3 2 barrel pulling a 10,000 pound Winnebago motorhome and I get 15 mpg at highway speeds, and I'm not alone or guessing at this figure. Clutch Housing Bolts Engine Oil 30 ft-lbs. By treating all engine accessories as a system, the computer can control accessories as needed to improve engine power and efficiency. Engine lubrication system consists of a rotor type oil pump and a full flow oil filter. This example is a 1994.
Valve covers are held on by five screws; it is easy to overtighten them. Blaze I have a 1978 Dodge maxi-van with the 318 - 2bbl carb, 3 speed auto. A higher lift cam can also require new springs. Timing marks and removing the crank seal 360 but 318 is probably similar The timing marks are located on the lower driver's side of the timing chain cover. Across-engine specifications 1994 Engine Vehicles Power bhp Torque 5. He couldnt beleive that it came factory with a one core radiator.
This was deleted in later Magnum engines, which rely on pushrod oiling via the lifters. The electronic sequential multi-port fuel injection management system gives the engine a distinctive appearance, reminiscent of the high-rise intakes of the muscle cars. I havent had it on the highway though for quite a while. It was also installed in the Limited 5. The bottom line is that the cam installation procedure is the same.
For example, if you stroke a 360 5. You will need the help of your engine shop at this point to determine if the block is damaged or if it can be rebuilt. As soon as these engines were released, they were installed in Ram pickups, and they are still going strong in the 2001 models. He also said there was no performance drop in going from the old polyspherical heads to the wedge design: The performance improved by getting rid of the silly polysphere. It gets the charge moving and mixed, moving through the chamber at high velocity, which means the flame travel is fast and there isn't anything left to burn by the time it gets to top dead center, where you expect the detonation. One solution is to install large oversized valves like 1. A special version was also available in 1966 only - it used a 0.
The above listed mods should help you pick up 10-15 H. Raising the block decks would have been extremely expensive in tooling and time, so they cut the height of the piston to allow a little extra movement; and changed the radius of the crankshaft counterweights, so there would be more room at the bottom. There are a ton of late-model Magnum 360 eninge out there, so we grabbed one and found out how to make good power without spending a million dollars. In the 1966 cars, a 700 cfm carb and. The 360's closet rival in raw power was the 383, which had a larger cylinder bore at 4. When the 383 appeared later, it usurped the 340 and 360 as Chrysler's premier high-performance engine behind the legendary Hemi V-8s.
Important note 2: There is a persistent rumor that the Magnum engine will not tolerate camshafts with higher than. These changes are with a cam, lifter, timing chain and springs only. In California and some high-altitude locations, 1979 cars with the 318 had a Thermoquad four-barrel to boost performance in the face of primitive emissions systems; starting in 1981, the four barrel was available in trucks regardless of location. We work with 3 of these manufacturers, so we can supply new heads for everything from a budget rebuild to a ported racing version with oversized valves. The Magnum featured high-flow heads for better intake. The transmissions however are another story, one tranmission died on me because of a clogged valve body I think, the entire tranny was rebuilt but ever after that it would not go into reverse. Fuel injected engines like cool air.