Rocker Arms Engine Oil 45 ft-lbs. Most production engines got some variation of the Low Riser style heads, but some production 427s got the Medium Riser variety. This package consisted of a highly modified 391 truck crank from Performance Crankshaft, a set of Scat 6. Testing of the 406, with its higher power levels, led to cross-bolted mains — where the main bearing caps were not only secured by bolts at each end coming up from beneath but also by bolts coming in from the sides through the block, a spacer was used between the cap and the block face. Given the smaller bore sizes, this engine was much less expensive to manufacture than the 427 while still being able to deliver a copious amount of horsepower and torque. For 390s equipped with both the manual transmission and the Thermactor Exhaust Emission Control System, the idle speed was 625 rpm.
The 428 should not be confused with the Ford 429. I checked my tracking for my 390 complete engine minus carb, dist, water pump and flexplate --ebock heads and rpm intake and it shows up at 525 lb. Now, I'm certainly no expert so hopefully someone can correct me if I'm way off but this is what I've understood by what I've heard from several different people. If I had to guess I would say that the fly wheel is warped or the clutch is slipping. They offer improved engine performance and much greater durability than a stock type cast or aftermarket hypereutectic pistons. Talk about straining an engine hoist! In 1965, Ford released the side-oiler block, which routed oil to the main bearings and then to the cam and valvetrain. The medium range of displacement needs was met by the , a Cleveland-style block with a raised deck allowing it to use a longer stroke crankshaft giving a displacement of 400 cu in 6.
Their cast iron block weighs 230 which they say is 30 lbs over a stock Ford block. This Tech Tip is From the Full Book,. There were many variations of the 390 besides those just mentioned—Police Interceptor, Thunderbird Special, and the Special. I wondered about it then if it was a 352. The 406 was developed purely for racing and was sold to the public only to meet racing targets. The block is bulged out to accommodate this oil passage, and there are pipe plugs in this bulge, so a sideoiler is easily identified. Pontiac used the same external dimension block from the 287 to the 455.
Visitors who read our review in the Book section raved about the depth of information provided. It is topped off with some mildly ported Edelbrock heads and an owner-fabricated blower system. Brutal in both potential and execution, another automotive icon was born. But it only had a two barrel. The 428-4V Cobra Jet was available in two basic forms: with and without Ram-Air. All photographs and content on this website are copyrighted by the author. However, it had a larger 4.
The home port job left the standard 2. I had gotten frustrated because the displacements listed in published sources were generally all over the map, so I figured I would do it myself based on actual bore and stroke. Fords of 1956 with the 312 can be spotted by their front fender side emblem. The blocks were dye tested to find any weak areas and the pistons were X-rayed to ensure they were up to the rigors they would likely face. Standard-issue engines, however, were pretty close in performance and fuel economy, in my experience. Oil pump was full of filings. Always rare, and quite valuable today, the lightweights were only the opening act.
The 390 comes in the 2V, 4V and 6V versions. Any help would be appreciated, Thanks…. Throughout the late 1960s, professional drag-race programs evolved and the cars got further from a production basis. Complete stroker packages are available from a variety of sources, including Survival Motorsports, Blair Patrick Racing, and Precision Oil Pumps. I guess only Marti knows for sure.
He wanted a 312 or 352 in his car. On the intake side, opening up the bowl and removing the pinch in the port opening improved flow at the higher lift levels. They were standard equipment in the 1958 , , , and , and optional in the 1959 , and. Maintenance Note: There was a running change in the manufacture of cylinder heads on the 406, which resulted in the internal valve spring pilot being machined off. Television was about to change the way cars were marketed, and motorsports was one of the beneficiaries. This is based on using a 10.
These were dropping valves until Ford recalled the remaining ones and replaced the valves. The aluminum alloy slipper-type pistons have embedded expansion struts for less friction and faster heat dissipation. But perhaps the most memorable win came the following year, as legendary American drivers A. I would say it will check in about 75 lbs lighter than the 312 Y block that's in the the car now. No one was laughing at the big-block Mustang anymore. You may have to … take out the starter to get at some of the bolts. Flow Numbers Flow numbers from the three different head variations show the effects of the different modifications.
Guess that explains why there used to be so many Cadillac into Ford truck swaps back in the day. In these engines, the casting extends 3. This was similar to the oiling design from the earlier. Some interesting links: Lots of cool stuff for 60's Ford car fans. For my first oil change, I decided to go with the conventional 10-40 that I already had in the garage along with a zinc additive. Production of these engines was quite low, with only 24 having been produced by January 15, 1960.