The Cobra Jet claimed a 10.6:1 compression ratio and used the same hydraulic camshaft as the 390 GT engine, which was a fairly aggressive grind for . Some of these big-block Cobras were also equipped with the 428 Police Interceptor." From what I understand of the 427 Cobra, the 427 was, indeed, the motor that made the car famous. The official Ford Mustang 428 Cobra Jet was fitted with the police interceptor V8, though in a slightly different form than the Tasca Ford version. Ordering either of these axle ratio options commonly triggered a few other upgrades as well, including the 428 Super Cobra Jet engine, an external oil . The Cobra Jet claimed a 10.6:1 compression ratio and used the same hydraulic camshaft as the 390 GT engine, which was a fairly aggressive grind for . The 69/70 PI used the Cast Iron 428 CJ intake. Date code on driver side app Although it doesn't tell for sure about the block it will confirm whether the crank is a 428 stroke. I worked at a Ford dealership in ''66 and we "locked out" 1st gear on the 428 C-6 police cars. The 70 428 PI would be a 428CJ shortblock (4.13 bore and 3.98 stroke) with the stock CJ/GT cam, standard pass car C8AE-6090-H heads (2.02 - 1.55 valves) a 428 CJ cast iron C8OE-9425-C intake, Autolite 4100 carb (or holley but not certain which one) and log exhaust manifolds. 500. The story has been told in numerous books and magazine articles. 428 Cobra Jet Smog Emissions System. Some earlier 428s also got this block. Head and Block Specs. $749.95. 7 Rfrences. The police interceptor was an early edition of the cobra jet. Ford Police Interceptor de 1961 1963; Mercury Police Interceptor de 1963; 10.1:1 - 330 chevaux (250 kW) 5000 tr/min et 427 lbft (579 Nm) . All Cobra Jet matching number parts are in very good condition. In essence you can add a set of stock iron CJ . Timing Pointer Ford 428 Police Interceptor 1967 Shelby GT500. Nov 15, 2018 #7. The 428 PI however had the solid lifter cam from the 410 HP 427 and used the MR 427 intake manifold. The 428PI pistons were the same as 428 passenger car pistons, and the 428PI got the same crankshaft balance as the 410, 428pass, and early 428CJ. Here's a dyno chart by one of the guys in the FE forum. Featuring a compression ratio of 10.6:1, the 428 CJ made use of 427 cylinder heads, upgraded connecting rods, and an iron intake manifold matched with a Holley . The article reads (under the photo of the 427 Cobra) as follows: "The big-block Cobra was in a class by itself in both looks and performance. Mar 26, 2005. Find out which one was the fastest, including 1/4-mile ETs and MPH! The 428CJ intake will have the casting # C8OE-9425-C behind the carb. FUEL PUMP FORD 352 390 406 427 428 MUSTANG MACH CJ POLICE INTERCEPTOR. The 428 Cobra Jet, introduced April 1968, was a high torque, quiet, inexpensively built engine. The intake manifold is made out of aluminum . In 1968 Ford came out with the 428 Police Interceptor engine that was used in the early Shelby G.T. The 428 CJ was also present in 1967 Police Interceptor cars and also the Mustang GT500 (EXCEPT for the KR). The 428 Cobra Jet is cast iron block and head construction. The back of the CJ block should have a "C" cast or welded into the back . It was the old 428 block with a lot of changes. This plain and literally brown unmarked police car is a real-deal 1972 Ford Galaxie 500 P-Code police interceptor. 428 Cobra Jet Standard was 2.09 inch intake and 1.66 inch exhaust valves. The advance curve should be completely in by 3000 rpm, maybe a little sooner (2500) if your engine can accept it. Two totally different motors with the '71 Ford P.I having a 429 Cobra Jet equipped with a GM Quadra Jet 780 CFM 4V Carburetor which was rated by FoMoCo at 375 HP, and actually dynoed . The 66/67 PI received the Aluminum intake for a period. . Reply. Basically, a 428 is just a stroked 390, and tuned for massive torque over horsepower. Details. One used for normal 428, the 428 Police Interceptor, and the 428 CJ before 12/26/69. Shipping: US-Mainland: $19.99 . The valve train uses an overhead valve (OHV) system, with 2 valves per cylinder for a total of 8 per head. Standard Cobra Jets use 13/32-inch nuts and bolts. The PI's used in the Shelby also used the same 390/428 passenger car heads with . . Like Tasca's original creation, the Cobra Jet mixed police interceptor parts with bespoke Ford performance gear to build on the 428's already-impressive performance. The heads and intake were unique to the 428CJ. Crankshafts used in the 428 Super Cobra Jet are stamped "1UB" and are balanced differently due to the use of the beefier LeMans connecting rods, which use cap screws to secure the rod cap in place. Although I agree that the heads are the MAIN differance on a Cobra Jet vs a TBird 428, the other differences DO exist.One of my 428`s I have was a new 428CJ "Service" short block, that was bought from a Ford dealer in the mid 70`s, and installed into a 1966 F100 pickup, using the trucks original 352 heads. Rated at 360 hp at 5400 rpm, the big block produced 420 ft. lbs. It utilized a very rare Holley carburetor, engineering number C8ZX-A, for both manual and automatic transmissions. . Although many early Mustang articles suggest that the 428 Cobra Jet was designed by Mr. Tasca, there are in fact more than 30 design differences between the components used by Mr. Tasca, the 428 PI, and the released 428 CJ. . The biggest downside to the PI's were the use of the 8 bolt heads (390/428) for the fullsize cars along with the log exhaust manifolds and small Autolite carb.. Not intended for true racing durability, it lacked the bottom end features of the side-oiler 427. . PLEASE SUBSCRIBE, LIKE, COMMENT, AND SHARE! 428 Cobra Jet Exhaust Manifold Heatshield & S-Tube Riser 68-70 Mustang Shelby. The program was engineered, designed, tested, validated, released, and certified between January 1967 and August 1968. "I flycut the pistons right in the block," Gilbert said. The Lunati 10503 is their replacement CJ grind. Ford first offered 'big block' power in the facelifted 1967 Mustang. But, from the factory it was never as powerful as the (solid lifter) 427. It was date-coded six weeks past #135044's build date, but Tom said he could live with that. The biggest downside to the PI's were the use of the 8 bolt heads (390/428) for the fullsize cars along with the log exhaust manifolds and small Autolite carb.. All Cobra Jet matching number parts are in very good condition. onstage music new port richey; kawasaki vulcan 's peg scrape; 1968 shelby gt500kr convertible The CJ's two-bolt mains give way to four-bolt mains, the pistons are forged aluminum instead of cast, a 780 CFM Holley carb sits atop a bespoke intake manifold, there's an oil cooler hanging off the front of the radiator support . stronger. The intake should be stamped as C7AE-9425-F. Again, this intake would come on all 428 Police Interceptors and also all GT500 Mustangs (Except the KR) in 1968. texas middle school track results. you have to take it a part and measure the crank. Someone in the Forum suggested that the correct code for a QCode 428 in 1966 should be C6ME-A which is a Cobra 4V police interceptor engine. They were just burning the tires off of them. Also have some 428 Police Interceptor parts and general FE parts.Cobra Jet Specific with . Although it doesn't tell for sure about the block it will confirm whether the crank is a 428 stroke. The option continued for 1968, and this professionally restored, meticulously maintained example is one of 42,325 fastbacks produced for that year, including one of just 1,044 fitted with the R-Code 335 bhp, 428 cu. Another way to tell if it might be a 428 is to remove one spark plug, take a stick or dowel and measure the stroke of the piston, it should be 3.980", a 390,406, or 427 will have a 3.780" stroke and a 330,352,or 360 will have a 3.500" stroke. The 428 short-block used police interceptor heavy-duty connecting rods and was topped by 427 "low-riser" cylinder heads (very similar to Tasca's 406 pieces), and a Holley 735-cfm four-barrel, though on an iron intake rather than the aluminum police interceptor casting. Was building a 428 Cobra Jet motor, but am going to stroke a small block instead. Connecting rods are similar to those used in the 390 GT, but CJ and Police Interceptor engines are fitted with 13/32" bolts. closest to stock 428 CJ engine I've seen tested so far. Ford first offered 'big block' power in the facelifted 1967 Mustang and the option continued for 1968, and this professionally restored, meticulously maintained example is one of 42,325 fastbacks produced for that year, including one of just 1,044 fitted with the R-Code 335 bhp, 428 cu. The most common intake manifold used for both 428 Cobra Jet and Super Cobra Jet engines from 1968 through 1970 is easily identified. #3. The system was a traditional camshaft in the block orientation using pushrods. 1969 Boss 429 Front Chin Spoiler - Early & Late Version Available. A true Cobra Jet block will have a C cast in the back the block where the bell housing bolts up. 'Police Interceptor' Cobra Jet V-8 engine and, furthermore, one of 860 fitted with the C-6 . The 428CJ intake will have the casting # C8OE-9425-C behind the carb. based on piston speed is 5,276. your 390 with the 428 piston combo will, with very little add ons will get you just this side of 400 h.P. This block was still standard bore and crank only needed polishing. 428-4V, Police Interceptor, Cobra Jet C7ME-C '67/ 428 c.i.d. No marks means it's either an overbored 390 or a service block with the proper cylinder and bulkhead reinforcements. Bob. 8 Voir aussi. After that date Ford offered one crankshaft for 428 CJ. 67 - 70 428 428-V4 police interceptor cobra Jet or 410 76 mercury. Also have some 428 Police Interceptor parts and general FE parts.Cobra Jet Specific with numbersExhaust manifolds and spacer - C8OE-9430-D and C8OE-9431-B. The Police Interceptor 428 was produced in 1966 and had a slightly better carburetor setup than the standard 428 as well as some general changes in the compression and the intake and exhaust settings of the lifters. . The 5th letter of the VIN denotes the engine the car was built with. FUEL PUMP FORD 352 390 427 428 1969 1968 1967 1966 1965 1964 1963 FUEL PUMP BRAND NEW USA MADE SAME FIT AS 4918 NOT SOME DRIED OUT OLD JUNK for 3/8 fu
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