And even though technology may have changed its processes and methods, the 153 is still manufactured by GM as the Vortec 3.0L I-4. And here it is, in GM's 2013 catalog, the modern descendant of the Chevy II four. • Throttle Body Injection. I used a hole saw sized appropriately to make all the . Iron Duke Stroker Every body interest in this is coming up short as far as I know. A new V6 engine also was offered, which was a 2.8 litre engine producing 102 horsepower. 10049801-Super Duty four port special aluminum cyl. Wanted to make sure the homemade intake worked with the blower, Fired it up a few times with the ol' mustard bottle. . Engine: GM Pontiac 2.5L "Iron Duke" Transmission: Borg Warner / Ford SR-4 (manual) Transfer case: 2.62/1 (Dana 300) Front Axle: Dana 30 Rear Axle: AMC 20 Nov 29, 2020 . Shop 151 Pontiac Iron Duke Inline Four parts and get Free Shipping on orders over $149 at Speedway Motors, the Racing and Rodding Specialists. (2.5L Iron Duke) 4 Cyl. The 2.5 was slightly detuned for the Wrangler and produced 121 horsepower and 145 lb.-ft. of torque at its peak. View All Clevite 77 Chevrolet High-Performance Camshaft Bearings Clevite MAHLE Camshaft Bearing Set Chevy/Pontiac 1982-1991 L4 "Iron Duke" 151ci (2.5L) Part Number: 695-SH1030S All 3 of the 8 port Gaskets , ., and the 8 port compared to the 5 port ., , the smallest 8 port is the industrial engine. IRON DUKE PERFORMANCE PAGE. Intended to be 'economy' engine. . Chevrolet Performance 89060390 - Chevrolet Performance 2.2L 134 C.I.D. If you are talking all out engine, you need SD or KRP block, billet crank, and good head to make power. head: . Pinterest. Jeep used the carbureted version of the Iron Duke engine in the late '70s/early '80s. It also ended up in the Fiero. Engine Assembly, Crate Engine, Chevy, L4, 2.2L, 134, RPO Code L61, Each. For years and years there has been lots confusion over the difference between the "Chevrolet" 153 (3.875″ bore x 3.25″ stroke) and the "Pontiac" 151 (4.00″ bore x 3.00″ stroke). 347056-Four Cylnder Performance Head: This cast-iron performance head is designed to be used on 151ci or 153ci 4 cylinder engines. Kit also includes Work well with mainly stock components (rockers, manifolds, heads, compression . Pontiac never pretended that the Iron Duke was a performance engine, and, in fact, it wasn't. The goals were durability, economy and clean emissions; it wasn't sexy, but it was right for the times. The Chevy II Nova 153 cu/in 4 cylinder engine IS NOT AN IRON DUKE. Despite the cooling vents atop the engine cover, the radiator is in front. As the base engine for the redesigned 1982 Camaro (and Pontiac Firebird), the 2.5-liter, four-cylinder "Iron Duke" was the smallest, least . Part Selector . There was a time when 90 horsepower was a lot, and that time was 1932. Super Duty 4cyl. The Iron Duke is a single cam overhead-valve inline four-cylinder engine. For over 25 years have been building the 3.0 liter crossflow engine for the series IIA and III. While the Iron Duke has a 4 inch bore with a 3 inch stroke yielding a smaller . Here are the specifics on the 5 cylinder, 1000cc prototype: 67 x 56 Bore and Stroke (mm), 125 HP @ 7,500 RPM (max engine output speed) with 119 NM of torque. Every one was cracked on the TOP of the head on the side without the valves! The easiest way to get more power from your 153 is to get a 181 short block. I haven't done alot of driving with this yet, or done final carb tuning as I'm still working on a TCC lockup . The original engine puts out 87 horsepower at 4,400 rpm. Flows enough to make 270hp or more in a 3 liter engine. The Iron Duke. Best Selling in Cylinder Heads. Sep 13, 2017. If your 4 cyl is the iron duke, its a GM product with a bellhousing bolt pattern that will match most GM transmissions. The 1987-88 Pontiac Fiero's Iron Duke engine got extensive modifications, boosting power from 92 to 98 hp (68 to 73 kW). Or it sounds like it does. . Has a conventional chevy belhousing pattern. Other offshoots of GMC used this engine successfully in their vehicles making the Iron Duke just as famous as other notable engines in automotive history. Exhaust port comparisons of: SD-4 aluminum 801 head(top) . Over the years, the Tech IV engine has proved to be a reliable, if noisy, workhorse for owners when not pushed to its limits. Rounding out the higher performance options were two 5.0 litre engines producing 150 and 165 horsepower, respectively. The I/E ratio is 72% which is also nice to have in a naturally aspirated engine. There was a time when 90 horsepower was a lot, and that time was 1932. Other offshoots of GMC used this engine successfully in their vehicles making the Iron Duke just as famous as other notable engines in automotive history. It is most commonly found in 140 hp Mercruiser applications and is also referred to as a 3 liter Mercruiser. The only engines worth cheering about during the entire third generation era were . Fifty years later, it was bupkis, especially under the hood of Chevy's beloved Mustang-fighter, the Camaro. Package Contents One pair of header flange gaskets. Gasket Thickness 0.0625 in. Free shipping. The 151 "Iron Duke" in a Jeep makes 82 hp at 4000 rpm. The studs on the rocker arms are torqued to specs. World's top manufacturer of performance camshafts, lifters, valve springs, rocker arms and related valve train parts for all race and street performance engines 151 c.i. Good luck in your trip home in your "new" CJ8. Torque peak is 128 foot-pounds at 2,400 rpm. My '79 Monza parts car came with a progressive two barrel carb on the 151. It is basically 2/3 of a Chevy 250 6 cylinder. Flow tested at a reputable performance shop. . Port Style Round & Rectangle. 2 Quantity Performance Tires, Complete Engines for Mazda 2, Engine Computers for Mazda 2, Ford Performance Racing Car & Truck Decals & Stickers, Motorcycle Decals, Emblems & Flags, Fifty years later, it was bupkis, especially under the hood of Chevy's beloved Mustang-fighter, the Camaro. (Iron Duke 151) Special Engine Notes IRON DUKE 151. S.J. Even the United Stated Postal Service installed the engine in its Grumman LLV . In a couple ot short test drives, the engine feels much better with this carb. . 100% New Parts! 4.3 has same rear mounts but side mounts just like small block V-8 Chevys. The only part off the Iron Duke 151 you can use on a 153/181 is the pushrod guide plates. Born in 1977 from the hearty stock of the Chevy four, the Iron Duke displaced 151 cubes of majestic fury, and it was known by many aliases: the 2500, the 151, the Pontiac 2.5, the cross-flow-head . Even with what some people say are small valves, these heads flow very well. The Ford 390 was a 6.4-liter (390.04ci) gasoline big block V8 engine that was produced between 1961 and 1976. The 4 cylinders engine models are still being produced today with the current 3.0L 181 Cu-In sterndrive model. 05-07-2009, 05:55 PM. Are you working on a 151 c.i. 1991-92 VIN R and U engines received a timing chain. No (1) Items (1) Not Specified (16) Items (16) Vintage Car Part. The mere mention of this infamous powerplant will quickly draw rolling eyes from any automotive enthusiast, especially those in the GM and Pontiac camps. The legendary Iron Duke engine powered Camaros from 1982 through 1985, but they were too sluggish and underpowered to really get the heavier car moving. It does gets a bit confusing, given how similar they are. Engine planning Head flow #'s are in! 347056-Four Cylnder Performance Head: This cast-iron performance head is designed to be used on 151ci or 153ci 4 cylinder engines. The longer stroke provides 183 cuin, 3.0 Liters of swept volume. 151 Pontiac Iron Duke Inline Four parts in-stock with same-day shipping. K&N HP-1001 Performance Gold Oil Filter $14.99 $24.99 196, 231, 252, 200, 229, 265, 151, 3" Outside Diameter On Sale . I think it would be very easy to adapt a standard two bbl carb to it. But expensive. Post Reply Email This Page to Someone! Beginning in 1962, and ending in 1970, one could acquire a four-cylinder engine in a compact Chevrolet. The iron duke name came out in the late 70's when it showed up in the Monza's and Sunbirds with a cross flow head. The kit is available for $19.99. From the book "Pontiac Since 1945" : ."The new Pontiac engines were the first from the division since the OHC6 of 1966". The four was rated at a modest 87 horsepower at 4,400 RPM, although the torque peak of 128-lbs.ft. The engine produced between 85 and 110 horsepower and 123 to 135 lb-ft of torque. First off the motor has a misfire. -1991 Chevy Buick GMC Pontiac 151 2.5L Iron Duke Engine Camshaft Genuine OEM 1984-1991 Chevy Buick GMC Pontiac 151 2.5L Iron Duke Engine Camshaft Genuine OEM. The Chevrolet Iron Duke is known by several names, but Chevy vehicle owners know when this vehicle it sitting underneath their hood. The 153 is a different motor. Pre-Owned. . After market Blocks and/or heads seem to be a viable engine. Long . Based on the original Iron Duke platform, we've added a list of enhancements to the stock block which are numerous. The redline, or maximum operating RPM of the 2.5 Liter engine is 5000 RPM. Intended to offer miserly fuel mileage for buyers still shell-shocked by back-to-back energy crises, the Iron Duke provided sub-100 horsepower drudgery in a package . 3 product ratings - NEW NOS Melling oil pump GM AMC Am General 2.5L 151cid Iron Duke M62C. The 305ci engine didn't improve performance much, but found a solid following among spec-racing enthusiasts. Powering the new 1982 Camaro were the infamous 2.5-liter Iron Duke I-4 producing a measly 90 hp and 132 lb-ft of torque; a 2.8-liter, 102-hp and 142 lb-ft V-6; and two 5.0-liter (305-cubic-inch) V . Ok, the L134 makes 60 hp at 4000 rpm. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators . Nothing but problems. Innovations: • One of the first all-metric fastener engines from GM. By 1988, the Iron Duke had a roller camshaft, balance shaft and even a distributorless ignition system. . This top end performance kit is eaxcatly what you need to take the Iron Duke to the next level. The AMC 150 cid engine in a Jeep makes 123 hp at 5250 rpm in its final MPI version. The majority of Pontiac Fieros were built with the cast iron, pushrod, low rpm, 2.5L four cylinder engine. This kit features a Hydraulic-Good combination of torque and power. Exhaust port comparisons of: SD-4 aluminum 801 head(top) . Performance Street driving. Model A Vette, Nov 16, 2007. One of the most important contributors to the increase in performance was one Eddie Meyer who provided custom heads, hot cams, with Evans heads, Edelbrock carbs and intakes, Stromberg carbs and even Offy heads. Gasket Material Composite Steel Shim. Iron Duke/Super Duty (SD-4) Heads. See Motor Trend of the period among others for it's engineering background. Find CHEVROLET GM 4-cylinder Crate Engines and get Free Shipping on Orders Over $99 at Summit Racing! When Craig Moates is back from the holidays, I'll be contacting him for a complete 'tuning' system to set up the TBI in my 2.5 truck for optimum performance. The Chevrolet Iron Duke is known by several names, but Chevy vehicle owners know when this vehicle it sitting underneath their hood. Chevrolet performance 350/290hp crate engine 12499529(US . The Iron Duke or Tech 4, as it was later called, was a simple engine with more potential than most of us realize. when it starts it em. A large step can be realized in achieving that 5000 RPM redline in the 1984 through 1986 Fieros. However, as revisions came along, power saw a spike with outputs topping out at 130 horsepower and 150 lb.-ft. of torque. Seems to run good, might have to jet d. Evolution to the Quad 4 made a good engine,but with EFI ,16 valves, etc Its hard to transfer. Free shipping for many products! was reached at a relatively low 2,400 RPM, for . This head shows excellent flow at midlift and full lift values. No it is not an Iron Duke. The timing gear . The 153 engine is not the 151 (2.5) "Iron Duke" The 153-181 engine design was originally used in industrial, marine and early Chevy ll cars. Here by request is a thread about the intake and header i built at home for my Chevy 153 engine that was in my '47 CJ2A that is pictured in my avatar. . Proform High Performance HEI Distributors These high performance HEI distributor produces a 50,000 volt spark through 7500 rpm, offers true spark alignment for instantaneous voltage response, a high performance advance curve, plus a high performance coil and cap with brass terminals. MerCruiser 4 cylinder engines date back to the 1965 model Renault engines, and the 3.7L 470 sterndrive and inboard models in the mid 1980's which Mercury Marine die cast the engine block in-house at the Stillwater OK location. Other improvements over the years included new pistons, rods, crankshaft and an in-pan oiling . The 153 has lived on through usage in motorboats as the MerCruiser 3.0, rated at 140hp, and in Hyster and Yale forklifts. My 2 liter makes range of 300 at 9600rpm and pushes a Firebird >170 at Bonneville. The 173 helped so I am told. Engine Performance. $54.95. The v6 is a little better built though. The Iron Duke, was indeed, an offshoot of the Pontiac 301 V8. The iron duke was the late version of the original 4 cylinder Chevy II engine. Installation Hardware Included No. While not a bad car overall, the Fiero is a terrible performance car. things i could suggest for you if your on a budget 1) MSD Ignition. Starting in the late 1970s, Chevrolet made a V6 engine out of three-quarters of the small-block Chevrolet V8, and it went on to a long and successful career. 10031323-Cast-Iron head with EGR. : 10031322-Cast-Iron head W/O EGR. There are 3 different 8 port heads,.2 marine and 1 industrial. id do some research and see if they do in fact cross in some areas. The flanges were made from 1/4" cold rolled steel, i think it was 2 1/4" wide. : 10031322-Cast-Iron head W/O EGR. The engine is based on the 151 cuin, 2.5 liter GM Iron Duke, but like hundreds of other engines it gains performance from a longer stroke. Derided for being anemic at best, and noisy when pushed, the Iron Duke was nobody's favorite engine, forever juxtaposed with the tire-shredding power of the late Muscle Era, which had just drawn to a close. Many engine parts can limit the maximum RPM of an engine. A regular Chevy bell housing will bolt to the Iron Duke. (1978-1989) Remove This Item; Engine 351C, 351M-400M 8 Cylinder (1970-1983) Remove This Item; Clear All. Thereafter GM's 2.2 L OHV 4-cylinder replaced it across the entire lineup of vehicles that offered it. Mercury has been offering a Mercruiser 3.0 for decades, using the raw engines from GM. Pontiac was the original manufacturer of the Iron Duke engine in the late 1970s. The I4 uses overhead valves with hydraulic lifters and a cast iron head and block. American Motors Company, while developing their own four-cylinder engine, used the Iron Duke in the Concord/Spirit, Eagle and Jeep brands. In the end the only stock parts you keep are the valve cover and the oil pan. All 1978-1990 Iron Duke L-4's are outfitted with a micarta camshaft gear that meshes directly with a steel gear on the crankshaft (no timing chain). In all fairness, Pontiac did partially rectify the problem with more power, but even then the Fiero lagged behind its rivals. It is an Iron Duke only by name, it shares no parts with the original Iron Duke built by Chevrolet. durable, fuel efficient, easy to maintain, withstand neglect, etc. Iron Duke that was used in Jeeps was designed and built by PMD (early 70s). The Iron Duke engine (also called 151, 2500, Pontiac 2.5, and Tech IV) is a 151 cu in (2.5 L) Straight-4 piston engine built by the Pontiac Motor Division of General Motors from 1977 to 1993. The SD motors started to blow up at about 9,200 RPM according to Vanderly. 2.5L Iron Duke 4 Cylinder (1978-1989) - Pontiac - Camshafts - Products (2.5L Iron Duke) 4 cyl? Pontiac was the original manufacturer of the Iron Duke engine in the late 1970s. If an Iron Duke is built up properly with high quality parts and the owner is careful when he races the engine an Iron Duke can be a reliable engine (no 150 shots of nitrous). I have a 82 CJ5 w/151 "Iron Duke" but I have a Weber carb, Hedman header, Clifford Performance intake manifold. Top. ft. Iron Duke base-models lacked power from their 2.5-liter engines, resulting in just 92hp and resulting in 103mph flat out. And does . The Super Duty counterpart is forged 4340 and weighs 50 lbs. They are great little engines, but the best allround engine is the 258-6. Every thing else is replaced. Murilee Martin. Specifically, this is the dilemma posed by the Iron Duke, the ultra low-tech four-cylinder engine adopted by millions of General Motors cars and trucks starting in the late 1970s. World's top manufacturer of performance camshafts and related valve train parts for all race and street performance engines - Chevrolet, GM, Ford, Oldsmobile, Pontiac, and more . Duke Hero, nice looking shorty. The Iron Duke, also known as the Pontiac 2.5, has a displacement of 2.5 liters or 151 cubic inches. This cast-iron performance head is designed to be used on 151ci or 153ci 4 cylinder engines. - Randy Agee on the Limitations of the . World's top manufacturer of performance camshafts, lifters, valve springs, rocker arms and related valve train parts for all race and street performance engines 151 c.i. My suggestion is use a small block Chevy bellhousing and an aluminum Muncie 4-speed transmission. Save Share. Advertised as the Super-Thrift 153, due to its 153 cubic inch displacement, this engine is not to be confused with the Pontiac Iron Duke 2.5 liter engine. I haven't posted much lately. 1982 Camaro Iron Duke. The engine was a 2.5 litre Pontiac engine known as the "Iron Duke" that had throttle-body fuel injection and produced 90 horsepower. 4 cyl has the rear engine bellhousing mounts and the front mount. It is said to be a 258 ci AMC straight-six with two cylinders lopped off, bored to 3.88", and de-stroked to 3.19". The '79-'80 engines had crossflow heads and non computer HEI ign. The stock street engine used a cylinder head that had siamesed exhaust ports and very small inlet ports, and 1bbl carbs only. During its initial years, the 2.5-liter four-pot managed 105 horsepower and 132 lb.-ft. of torque. V-6 engines and older in-line 6 cyl engines use 1.65:1 ratios. no pushrods are bent. As stated above, the marine head was somewhat better, had individual exhaust ports, bigger . get a GM performance catalog, look up the pontiac engines thay make some way cool "super duty" parts, destroke to 2.0 or up to 3.0 superduty heads etc.. Does anyone know what kind of performance the boat should have with this engine. Debuting in 1992, this Quad OHC was an eight-valve engine and produced 120 hp (89 kW), 40 hp (30 kW) less than the Quad 4 of the same era. Yes you can get a lot of high performance parts for the iron duke. Truck - 1986 Chevy S10 Engine - 2.5L "Iron Duke" 4cyl. Firstly, the cylinder head deck and water jacket are designed to accept the Chevy II/Pontiac, but also most any Chevy/Ford Small Block cylinder head bolt patterns. (1962 vintage)It is a plain chevy 6 194 ci 230 ci 250 ci 292 ci missing it's rear 2 cylinders. It wasn't a revamped version of the Chevy 152. Jeep used the 151 last. JEEP CJ CJ5 CJ7 CJ8 2.5L 4 CYL IRON DUKE ENGINE GM 151 COIL BRACKET OEM. An interesting piece of machinery, and a historic, versatile design. Bolt in lumps work! The 151c.i. Both the Iron Duke and the V6 engines as with most all early GM engines are totally pieces of cheaply built low quality crap. C $51.03. Ok boys and girls here is a little more info on the 2.5 "Iron Duke" engine for any of you that really care. . Iron Duke Super Duty Fiero at the best online prices at eBay! Make. Also includes a low-saturation ignition module for maximum spark intensity and high output coil. GM25 Header Info 2 ENGINE DECALS 4-CYL 134-140-151 I4 IRON DUKE GO DEVIL HURRICANE WILLYS 2.3 2.5. engine parts: HEADS. . The head's chamber and port design were later used with the perennial favorite Jeep engine, the 4.0L Straight-6. Performance Part. These were under controlled dyno room conditions. The Pontiac 'Iron Duke' The so-called Pontiac Iron Duke engine was a venrable engine used by Pontiac on its smaller cars. A SOHC variant of the Quad 4 was intended to replace the Pontiac 2.5 L Tech IV OHV "Iron Duke" engine. im not sure, but i do believe the 2.5 in your Jeep shares many aspects with the chevy 2.5 (iron duke) i bought a 2.7 stoker kit for my s.10 years ago, but i dont know if that would apply. iron duke performance parts list T H I S I S A N A R C H I V E D T O P I C : iron duke performance parts list. It was designed for low performance cars and low performance driving. Save your self time and money and go straight for the AMC engine. . : 10031322-Cast-Iron head W/O EGR: 10031323-Cast-Iron head with EGR: In-line 4 cylinder engines will use a 1.98:1 or a 1.84:1 ratio drive." The ratio is changed by changing the two gears in the upper gear housing. The comp guys make 430-450 range from abut 3 liter plus or minus. Clifford (6=8) made intakes for the Iron Duke. California Proposition 65 WARNING: Cancer. I'll be posting a thread and pix about it, and since the shop has an in floor dyno, I'll be able to track improvements and post the dyno charts. would have benefited both performance and fuel economy, but GM didn't have one, so the P-car initially had to make do with the X-car's four . It . Engine 151 ci. i.e. Iron Duke/Super Duty (SD-4) Heads. The bell housing is basically Ford on the transmission side and Chevy on the engine side. The 225 V6 makes 160 hp at 4200 rpm - but this is the old 'bhp' (gross hp) rating, and should be derated maybe 30% to be comparable with modern net hp ratings - so . 2.5L Iron Duke 4 Cylinder (1978-1989) - Pontiac - Camshafts - Products 10031323-Cast-Iron head with EGR. Added Value - the PMD Iron Duke engines were also . I had a 1981 Jeep CJ-5 built originally with the carbureted version, and though the Jeep was fun off-road in low range, its highway performance left a lot to be desired.
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