small block ford engine torque specs

New for 1969 was the only 351W-4V engine ever produced with 10.7:1 compression ratio. Power output: 340 hp (254 kW) at 4,500 rpm, 425 ft-lb (576 Nm) at 3,250 rpm. 289-4V V-8 High Compression/ Premium Fuel (1966 in Ford Blue). For manufacturing cost efficiencies more than anything, Ford destroked the 400M to 3.500 inches to conceive the 351M for 1975. The 221 was available only with an Autolite 2100 2-barrel carburetor with automatic choke, making it very short-lived, lasting through the 1963 model year. The 221’s cylinder heads employ very small ports and closed 43.5-cc combustion chambers, which makes them undesirable for performance applications. The Ford Small Block (aka Windsor, Windsor V8, OHV V8, pushrod V8) is a series of automobile V8 engines built by the Ford Motor Company beginning in July 1961. The same can be said for the 302 block, with its extended (by .015 inch) cylinder skirts to come later on in 1968. You’d be surprised how many times you get it wrong using a worn-out balancer or … [Click here to read more...], Parts selection is one of the most important elements of engine building because all parts must operate in concert with one another. Where it becomes challenging is the 351W’s cooling passages between intake manifold and cylinder heads. • 351C-4V closed wedge chamber (bolt-fulcrum rockers) The 1986 5.0L High Output SEFI engine also came with a new “Fast Burn” cylinder head borrowed from the F-Series truck parts shelf. Not all 289/302 blocks were cast at the Cleveland foundry. Otherwise, 289 High Performance heads aren’t any different than standard 289 castings. Another important issue to remember with the M-Series engines is their big-block bellhousing bolt pattern, which makes them incompatible with small-block transmissions. Ford introduced the original Mustang GT350 Shelby in 1965 together with the legendary Carroll Shelby and the first car with the Cobra name on its engine. The Ford Small Block (aka Windsor, Windsor V8, OHV V8, pushrod V8) is a series of automobile V8 engines built by the Ford Motor Company beginning in July 1961. 289 & 302 engines with 7/16” head bolts use 1012543708. For 1965, the 289-4V engine went from sharing dished pistons and the same compression ratio to 10.0:1 and flattop pistons. Ford conceived the 289 in 1963 and increased bore size to 4.000 inches while staying with the small-block’s original 2.870-inch stroke. Although this has been a point of speculation for years, I have to admit it looks suspicious from any angle. The rest were surplus castings left over from the Tunnel Port days, which made it into the Ford Muscle Parts program and dealer pipelines. Don’t be surprised to find a C8FE block in an early 1969 Boss 302 Mustang, because quite a few made it into production cars. The 6.2L V-8 employs two spark plugs per cylinder (16 total for the engine) in order to maximize combustion efficiency, which directly impacts performance, fuel economy, and emissions. Part #: BP3060CT It was a complete electronic engine management system. Some 1967–1968 289 engines got 302 blocks. Lobe vaLve Int. (Automatic), Flywheel BluePrint Engines 347 c.i. The 351C is identical to the 351W in terms of bore spacing and size. Each of these builds shows what can be done with both the 351C and 400 … [Click here to read more...], Once you have disassembled the engine, selected the best parts, and finished the machine work, it may seem as if the toughest part of a rebuild is over, but it isn’t. Although the 5.0L SEFI engine was intimidating for a lot of people in the beginning, enthusiasts ultimately embraced this powerplant and went racing with a new attitude known as PRO 5.0—building powerful Mustang rocket ships. Ford SVT Lightning 5.4L engine. Ram-Air was not available on the Boss 302 until the 1970 model year. Ford Small-Block Rebuild: Torque Specs, Sequences, and Alignment - Covers 221, 260, 289, 302, Boss 302, 351W, 351C, 351M, and 400M Small Block Ford Engines. To improve power, smoothness, and reliability, Ford gave the 351W a different firing order than the 221, 260, 289, and 302 engines. In the 289’s first year, 1963, there were two basic engines: a 2-barrel version with Autolite 2100 carburetion like the 221 and 260, and the 289 High Performance with Autolite 4100 4-barrel automatic choke carburetion and mechanical tappets, 9.0:1 compression, cast-iron exhaust headers with automatic choke heat stove, and 289 High Performance-specific heads. Although the 302 has a longer 3.000- inch stroke, it has a shorter connecting rod (5.090 inches center-to-center), which is not interchangeable with the 221/260/289 rod (5.155 inches center-to-center). My philosophy is “There’s no replacement for displacement” when it comes to increasing performance, but the key is how you get it. Important upgrades in the 289 occurred for the 1965 model year beginning in August 1964. Also like the 221, the 260 was available only with Autolite 2100 2-barrel carburetion. The 351W nodular-iron crankshaft has larger main and rod journals than the 289/302, along with a longer stroke. Moly and other lubes offer reduced friction and increased bolt tension, which will affect the torque figure. The 145-hp 221-ci V-8 was a smallblock with very low displacement. In 1983, Ford began fitting the 5.0L High Output V-8 with a Holley 4180 4-barrel carburetor, which was a Holleydesigned and Ford-engineered performance/ emissions/tamper-proof carburetor. These Flo-Tek aluminum heads for the small block Ford are specified to take plug number AGSF-32C. These pent-roof-style valve covers were in production through the 1967 model year. As was mentioned, Ford had to revise the block, extending cylinder skirts .015 inch for improved piston stability at bottom dead center. The engine’s bottom end also changed to accommodate the increase in performance. SHARE THIS ARTICLE: Please feel free to share this post on Facebook / Twitter / Google+ or any automotive Forums or blogs you read. The 351W employs a heavier wall thickness around cylinder bores and main webs. exh. Rotor Both the 221 and 260 were mildmannered mills (at 8.7:1 compression) for use with regular leaded fuels of the era. The block/crank/rod combination yields 438 cubic inches—a bunch for a small block Ford. These Flo-Tek aluminum heads for the small block Ford are specified to take plug number AGSF-32C. Ford racing camshaFts ... See page 121 for valve springs. The 400M is a “square” engine, meaning it has the same bore and stroke dimensions. And the compression ratio with the 260/289/302 was too high, making 221 heads unacceptable in any case. Includes 30 month / 50,000 warranty & BPE Dyno Promise. The 400M debuted in 1972 to replace the FE-Series 390-ci bigblock in full-sized Fords and Mercurys. Aside from this important change, the 289 remained essentially the same, with the base 289-2V engine keeping 52.6- to 55.6-cc combustion chambers and dished pistons to keep compression at 9.0:1. Boss 302-4V V-8 (with Shaker Ram- Air, 1970 only). Ford insiders from the period tell us the 5.0L engine was switched to the 351W’s firing order to more equally distribute stresses across the crankshaft. 289 & 302 engines with 7/16” head bolts use 1012543708. Ford enthusiasts have long called the 221-, 260-, 289-, and 302-ci engines “Windsor” V-8s. Compression was determined by combustion chamber size. These words appeared on all Ford valve covers that year and until 1975, when they were replaced by the Ford corporate oval. always torque Some 1964 289 engines were fitted with timingcover oil filler tubes while most were located in the left-hand valve cover. Ford introduced the original Mustang GT350 Shelby in 1965 together with the legendary Carroll Shelby and the first car with the Cobra name on its engine. The 400 CID Chevy small block engine was produced from 1970 until 1980 and was the largest displacement engine made in that platform. Ford SVT Lightning 5.4L engine. The 289 High Performance V-8 remained virtually unchanged aside from the six-bolt bellhousing block and a higher compression ratio. Because the small-block Ford was an “oversquare” design, meaning bore size was larger than stroke, there was room for larger valves, reduced piston speed, and shorter connecting rods allowing higher RPM. If you use aftermarket performance bolts like ARP's, you should follow the recommended torque specifications. Plus, you also add the necessary bearings, seals, and shims. One exception is the 1968-only 302-4V head with smaller 53-cc chambers and higher compression. Part #: BP3060CT Certain features, such as the engine's large bore and small stroke, were reportedly inspired by Ford's motorsport heritage. Ford developed … [Click here to read more...], Although transmission installation and adjustment appears straight-forward, you should take an orderly, methodical approach to ensure success. The stock 302 Ford small-block combines a 4.00-inch bore with a 3.00-inch stroke. Known as Sequential Electronic Fuel Injection (SEFI), this new system of fuel delivery and spark control (EEC-IV) was the single biggest quantum leap in technology for the Fairlane V-8 because it wasn’t just port fuel injection. Includes 30 month / 50,000 warranty & BPE Dyno Promise. There’s simply not enough cylinder wall thickness with a 260 block to get there safely. Valvestem size also stood at 0.310- inch, just like the 221. Heads), Flexplate Like the 351C, we may never know what led to the 400M in 1972 and ultimately the 351M in 1975. I am here to set the record straight. Includes 30 month / 50,000 warranty & BPE Dyno Promise. The Boss 302 block began life as the 302 Tunnel-Port block with a “C8FE” casting number, four-bolt main caps, heavier webbing, forged-steel 3.00-inchstroke crankshaft, heavy-duty connecting rods (actually “C3OE” 289 High Performance rod forgings with 3/8-inch bolts and meatier shoulders), and TRW forged aluminum “pop-up” pistons designed for Cleveland wedge chambers. ATK Ford 302 Long-Block Crate Engine Cost: $2,884.99 Going to the other end of the spectrum are ready-to-run, drop-in crate engines, which, due to … The 351W, for example, has the same bellhousing bolt pattern as the 289/302 six-bolt blocks, making it possible to swap this engine into 289/302 powered vehicles. exh. Compression was 11.0:1. These specs are for stock-type bolts with light engine oil applied to the threads and the underside of the bolt head. Think of a torque converter like a water wheel in an old saw mill: the waterwheel is driven by fluid … [Click here to read more...], In this chapter I cover the common engine swaps for first-generation Mustangs that increase performance potential. Other Boss 302 features included a dual-advance, dual-point distributor that was a Boss 302 exclusive. I … [Click here to read more...], Although I focus great attention on how a transmission is built, installation and proper adjustment after the unit is installed are just as important to durability and longevity. Valve sizes remained the same. Another important issue here is engine identification. Shown here is the 1994–1995 version of the HO with redesigned induction for the SN-95 Mustang. ATK HP Crate Engines Small Block Ford 351W / 390HP / 420TQ Show Product Info In 2007, ATK launched a High Performance Division with one of the finest engine shops in the country. Although the 289 High Performance V-8 never employed rail-style rocker arms, it did use pent-roof valve covers with a chrome finish and a high-performance openelement air cleaner for 1967. In theory, the Tunnel-Port cylinder head was a great idea, making a whopping 450 hp at 8,000 rpm. One third of the valve cover extends over the intake casting, and the pushrods run through cast or machined passages in … [Click here to read more...], Few things determine an engine’s personality more than cylinder heads, camshafts, and rocker arms. to Block), Cylinder Aside from the minute differences just mentioned, the 302 is virtually identical to the 289, including valve size and combustion chamber design. In 1964, Ford added a third 289 to the mix with 4-barrel carburetion and the same compression ratio as the 2-barrel available in Mustang only (“D” engine code). The first digit (always a letter) was for the decade - C=60's - D=70's - E=80's The second digit (always a number), was the production year. As with every other aspect of a Modular engine rebuild, the assembly is challenging … [Click here to read more...], Cylinder Numbers and Firing Order / Torque Sequences Recommended Spark Plug: AGSF-32C All had flat-tappet high-performance mechanical camshafts. Filed Under: Ford Engine Parts Interchange, Ford Tech Tips, Torque converters are probably the most misunderstood component in an automatic transmission, yet they’re the simplest in both theory and function. This 5.4-liter supercharged engine produces 380 hp (283 kW) and 310 ft-lb (610 Nm) of torque. Beginning in 1982, the 302 (5.0L) received the 351W’s firing order for the same reason. It has always been long on torque and high on horsepower thanks mostly to its cylinder heads. Because this problem was epidemic, Ford engineers had to think fast and arrive at a solution everyone could live with in order to salvage a hard-won reputation for winning. Combustion chamber sizes in 1963–1964 ranged from 52.6 to 55.6 cc for all 289 engines. Interchangeability with other small-block Fords is considerable, enabling all kinds of swaps. Carroll Shelby began his two-seat Cobra production with the 260 topped with a Cobra high-rise manifold and Holley carburetion. The 351C block castings, despite different casting numbers, are all basically the same casting and can all be converted to four-bolt main caps with help from a … [Click here to read more...], Adjusting ignition timing must be performed with a timing light with an accurate harmonic balancer. It had 255-specific cylinder heads with smaller combustion chambers and valves with round ports, and absolutely no performance potential whatsoever. Also different from the 351W is the thermostat’s block location instead of on the intake manifold as you find with the 289/302/351W. to and including 1984. Forget the logic saying you can bore a 260’s 3.800- inch bores to 4 inches to make it a 289, because you cannot. Ford’s legendary Boss 302 engine remains one of the most significant high performance power plants in the company’s history. Lobe vaLve Int. Quite a few were also cast at Windsor with a “WF” cast in the lifter valley. Includes 30 month / 50,000 warranty & BPE Dyno Promise. 351W engine with ½” head bolts use 590HBK35100. The 351W-4V was equipped with the Autolite 4300 4-barrel carburetor while the 351W-2V was fitted with the old reliable—an Autolite 2100 2-barrel. The 289 block is a thicker casting, designed for those larger 4.000-inch bores. Keep this in mind anytime you’re considering a head swap. Because the 351C has at least two GM nuances to its architecture (block configuration and poly-angle-valve cylinder heads), it raises questions about how this happened. The earliest applications included use in the short-lived Edsel program. The 351W’s cylinder heads are a great budget horsepower swap for 289 and 302 engines because they employ the same block deck patterns. Produced from 1980 to 1982 only, the 255 never cultivated a performance image because that’s not what it was designed to do. 351C-4V closed wedge chamber, … [Click here to read more...], © 2021 DiY Ford. An exciting new chapter for the industry was born, and it shows no signs of letting up. The best Cleveland head out there comes from Australia, with the 4V wedge chamber and 2-barrel intake and exhaust ports, making it the optimum cylinder head for this engine. Gone … [Click here to read more...], There are two Cleveland engine builds for you here: one from Trick Flow Specialties and another from Hot Rod magazine contributor Jeff Huneycutt of www.horsepowermonster.com. Chamber size depended upon the casting. For example: C3 is 1963 - C6 is 1966 - D7 is 1977 - E0 is 1980 - E2 is 1982 Includes 30 month / 50,000 warranty & BPE Dyno Promise. Step 5: Camming the 383 with Edelbrock And Cloyes Despite the best laid plans of men, camming your engine still remains a bit of magic. On top, the Cleveland’s poly-anglevalve cylinder heads with those large ports and wedge chambers closely resemble Chevrolet’s 396/402/427/454-ci big-block castings of the era. Despite a drastic blow to the economy since this book was first published more than a decade ago, enthusiasts are still racing the 5.0L small-block Ford in record numbers. The 351C block looks like a Ford/Oldsmobile hybrid with 289/302/351W bore spacing and size coupled with an Oldsmobile V-8’s frontend architecture. The 351W-2V engine had a more modest compression ratio of 9.5:1. For a comprehensive guide on this entire subject you can visit this link: In terms of interchangeability, it had very little in common with the 260, 289, 302, and 351W V-8s that followed. Part #: BP3474CT The 4-barrel head has a wedge chamber, where the 2-barrel head has a larger open chamber to reduce compression. Ford racing camshaFts ... See page 121 for valve springs. 351W engine with ½â€ head bolts use 590HBK35100. For example: C3 is 1963 - C6 is 1966 - D7 is 1977 - E0 is 1980 - E2 is 1982 You have to begin with a 289 or 302 block. Valve springs are suitable for most hydraulic flat tappet and mild street hydraulic roller camshafts; Specs. When Ford brought the Mustang GT back in 1982, it fitted the timeless pony with a High Output version of the 5.0L V-8. small block Ford style stroker crate engine - longblock. Under Cap Spins: These specs may not be correct for your application. The Boss 302 engine happened when Ford decided to get out of racing. Ignition systems included a dual-point, dualadvance/ retard Autolite distributor. But, we do know the 351/400M engines weren’t one of Ford’s better ideas meaning there are better choices out there for engine builders. The Olds-similar features include abundant cast-iron and a steelplate timing cover, 12/6-o’clock-bolt fuel pump (the only Ford V-8 ever to have the 12/6 fuel pump), and a cast-iron water pump. Because Ford’s 289-ci V-8 witnessed such great success across the board as both a dependable street engine and a world-beating performer on the racing circuit, you wouldn’t think Ford would disturb this success, but it did. To get to 331 inches, Scat offers a forged steel crank with a slightly longer 3.25 … It wasn’t like the classic FE-Series 427 SOHC V-8 that … [Click here to read more...], Although there’s some confusion over Cleveland cylinder heads, the 335-series engine family has the easiest line-up of Ford cylinder heads to understand. These desirable heads have larger ports, valves, and chambers, which make them a great budget swap. Early in the 1970 model year, Ford went to cast-aluminum valve covers. Never has this been more crucial than with Ford’s Modular V-8 because of the many variations produced since 1991. That begs the question: Why did Ford put this engine in car lines never intended for high-RPM use, such as the Galaxie, LTD, Fairlane, and Torino? Ford V-8s have always struggled to make power because they’ve always been limited by factory cylinder head design. California emission standards became tougher for 1966, calling for not only closed crankcase ventilation, but also the Thermactor air injection pump system to help further burn unburned hydrocarbon emissions. This Tech Tip is From the Full Book, HOW TO REBUILD THE SMALL-BLOCK FORD. Rotation. This 2002-2003 model was equipped with 5.4L supercharged and intercooled V8 engine. With 4.250” bore and 4.000” stroke, it can deliver serious horsepower and torque. BluePrint Engines 347 c.i. However, the 351C block is a completely different casting designed to take on larger cylinder heads with poly-angle valves, huge wedge- and bowl-shaped chambers, and smaller 14-mm spark plugs. They had an advertised +6.5cc dome, 1/16-1/16-3/16-inch ring lands, and a .927-inch pin bore that matches the small … Part #: BP3474CT California emission standards first manifested in two ways in 1964: closed crankcase ventilation, and the use of a PCV (positive crankcase ventilation) valve, the latter also used on most 49-state cars. Cylinder-head bolt and bore patterns make head swaps straightforward. In 1978, Ford also began fitting the 302 and other engines with a stamped-aluminum air cleaner to reduce vehicle weight. Larger chambers do mean reduced compression ratio. To get longevity and durability, a transmission must be properly … [Click here to read more...], Because the Modular V-8 has so many different applications, it is impossible to detail all the removal and installation specifics here. The goal of building a high torque, big-inch power in a budget small-block Chevy engine using quality parts was being fulfilled. On the upside are smaller intake and exhaust ports for improved low-end torque. small block GM style proseries stroker crate engine - dressed longblock with carburetor. Rod    260, 289, 302, (water Think of the Boss 302 engine as a wonderful act of desperation, because the 1968 302 Tunnel-Port was such a miserable flop for Ford. The FE was not a replacement for the Y-block; it was a larger companion to an engine family sharing some design … [Click here to read more...], Ford FE intake manifolds are unique to this engine family, and instantly recognizable when compared to any other engine’s parts. The 351C is a higher-revving V-8 thanks to large ports and improved breathing. The 6.2L V-8 employs two spark plugs per cylinder (16 total for the engine) in order to maximize combustion efficiency, which directly impacts performance, fuel economy, and emissions. The 260’s cylinder heads had larger 53-cc chambers with the same 1.590/1.390-inch valves also found in the 221. LEARN MORE ABOUT THIS BOOK … [Click here to read more...], The FE Ford engine was released into production in 1958. But, we do know Ford’s engineers took the 351C-4V poly-anglevalve wedge head and used it on the 302- ci engine to achieve peak horsepower in the 6,500- to 7,500-rpm range instead of a rod snapping 9,000. The first digit (always a letter) was for the decade - C=60's - D=70's - E=80's The second digit (always a number), was the production year. Some 289 engines were fitted with PCV valves while others were fitted with a draft tube. All pistons, flattop and dished alike, had valve reliefs. Port size on small-block Fords has … [Click here to read more...], It’s good to have a source to guide you when you’re struggling with troublesome transmission function. The 255-ci small-block was a short-lived answer to a challenge that’s still plaguing us 30 years later—fuel economy. Like the rest of Detroit in the late 1970s, Ford looked for ways to squeeze more mileage from a gallon of gasoline. Boss 302-4V V-8 (non Ram-Air, 1969–1970). You’re either swapping in an AOD, AODE, or 4R70W, or you’re removing and reinstalling one. Beginning in 1978, Ford began calling the 302 the “5.0-Liter” V-8, as the United States became pressured to employ the metric system. The BoxWrench Engine Specs Database is a community resource for mechanics of all skill levels to access a reference library of Firing Orders, Distributor Rotation Directions and Block-Cylinder Numbering as well as Torque Specs, Timing Settings and Cylinder Head Tightening Sequences among other engine specs. This carburetor, aside from minor engineering changes, remained essentially the same through 1985 along with the Motorcraft Duraspark II ignition system. The LS7 is easily identified under the hood by red engine covers with black lettering. First, you need to understand some fundamentals of the Ford axles to help … [Click here to read more...], Ford’s AOD evolved into a highly successful mechanically modulated transmission from its 1980 introduction until production ended in 1991. 289-4V V-8 High Compression/ Premium Fuel (1965–1967). smaLL BLocK V8 hYdraULic roLLEr taPPEt camshaFts Intake events exhaust events DuratIon LIft rocker (0.050") (0.050") (sae) (Inches) Lobe center Part number engIne ratIo oPen cLose oPen cLose Int. ATK HP Crate Engines Small Block Ford 351W / 390HP / 420TQ Show Product Info In 2007, ATK launched a High Performance Division with one of the finest engine shops in the country. On top, the Boss 302 had a 780-cfm Holley 4160 4-barrel carburetor. The baby Ford small-block had the same 3.000-inch stroke as the 302 with a smaller 3.68-inch bore. Known in the beginning as the 90-degree Fairlane V-8, for its first vehicle application in 1962, the small-block Ford began its service life modestly at 221-ci with a 3.500-inch bore and 2.870 inch stroke with an Autolite 2100 2-barrel carburetor. Get it mixed up and you have unwanted, severe engine-punishing vibration. The 400 CID Chevy small block engine was produced from 1970 until 1980 and was the largest displacement engine made in that platform. In 1986, the small-block Ford received the most dramatic change in its history—port fuel injection. (Clutch), (Harmonic One subtle change during the 1966 model year was the short-term use of a finned timing cover, used through early 1967. Instead of the 289/302’s 28-ounce offset dynamic balance, the 5.0L High Output had a 50-ounce offset balance, which is very important to remember when you’re building these engines. The 260 was also a short-lived engine, with production ending in 1964. Some blocks were devoid of any kind of foundry identification, which makes it tricky to identify them. The small-block Ford V-8 was a quantum leap in lightweight engine technology at the time. The stock 302 Ford small-block combines a 4.00-inch bore with a 3.00-inch stroke. They had an advertised +6.5cc dome, 1/16-1/16-3/16-inch ring lands, and a .927-inch pin bore that matches the small … It was so successful that it spawned a new organization known as the NMRA (National Mustang Racers Association), which has become a huge Mustang subculture. small block Ford style crate engine - longblock. This happened toward the end of the 1967 model year before the 302 entered production. Ford F-150 Harley Davidson Edition. Introduced in late 1964, Ford … Power output: 340 hp (254 kW) at 4,500 rpm, 425 ft-lb (576 Nm) at 3,250 rpm. Although I get into casting identification elsewhere in this book, valve-cover style and air-cleaner color identified Ford engines prior to 1966. Verify your engine specs with a service manual for your year and model. With 4.250” bore and 4.000” stroke, it can deliver serious horsepower and torque. The BoxWrench Engine Specs Database is a community resource for mechanics of all skill levels to access a reference library of Firing Orders, Distributor Rotation Directions and Block-Cylinder Numbering as well as Torque Specs, Timing Settings and Cylinder Head Tightening Sequences among other engine specs. In fact, the 302 block first showed up in the 1967 model year stuffed full of 289 internals—the “1M” crank with 2.870-inch stroke, C3AE rods, and cast pistons. The 351/400M was a raiseddeck (one-inch taller) Cleveland with larger 3.000-inch main journals (which made it taller and wider than the 351C) designed to accommodate the 400’s 4.000-inch stroke.

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