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Iron Duke engine

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692: 149: 971: 959: 40: 723:. The engines purchased by AMC continued to use the Chevrolet V8 bellhousing pattern. The four-cylinder engine was discontinued from AMC's rear-wheel drive models after 1982. During 1983, the all-wheel drive Eagle base engine switched from the Iron Duke to a new, AMC-developed 150 cu in (2.5 L) 927:
was added to smooth engine vibrations. Up to this point, the engine incorporated a 'dogbone' upper front engine mount secured to the cowling of the vehicle's hood latch, aiding in controlling the vibration. Further improvements in later years included new pistons, rods, crankshaft, and an in-pan
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In addition to parts matching the Iron Duke's stock 2.5 L displacement other crankshafts and their corresponding connecting rods were offered by Pontiac Motorsports, resulting in displacements ranging from 2.1 L to 3.2 L. A 2.7 L, 232 hp (173 kW) Super Duty engine
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to over 138 mph (222 km/h) during the race, but Super Duty engines were never available in factory-built GM vehicles. However, GM sold the Super-Duty-specific parts at authorized dealers and all of the parts required to convert a stock Iron Duke engine to a Super Duty version were
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was used to improve performance in cold starts, while heat shields incorporated underneath the carburetor and between the intake and exhaust manifolds were used to prevent heat soaking the gasoline in the carburetor thereby improving performance in hot weather. Recognizing that cars with
952:(Long Life Vehicle) built from 1987 until 1994 for the United States Postal Service for use in mail delivery were initially powered by the Iron Duke engine. The Postal Service specifications called for a 24-year service life and those with 2.5 L engine have surpassed expectations. 491:. Recognizing that future products would need to be smaller and more fuel-efficient, Pontiac engineers were tasked with developing a new engine that would be suitable for these future products. The engineers considered developing smaller displacement versions of the existing V8, a 910:
This was replaced by a swirl-port head with 9.0:1 (instead of 8.25:1) compression ratio in 1984 for a 2 hp (1.5 kW) gain. Other additions for 1985 included roller lifters, improved bearings, and a new
584:, rather than the relatively fragile cast aluminum block used by the 2.3 L Vega engine. (Even with the cast iron block the Iron Duke only weighed about 20 pounds more.) The 2.3 L engine's 970: 475:(AMC). The engine was engineered for fuel efficiency, smooth operation, and long life, not for performance. Total Duke engine production is estimated to be between 3.8 and 4.2 million units. 561:
Focusing on making power at lower engine speeds was a deliberate consideration in order to meet the rest of the design goals. Careful consideration was made to the design of the
518:, fuel economy, and "usable" power at lower engine speeds. They began by analyzing other four-cylinder engines in production at General Motors at the time, and they found that 1717: 674:
was relocated, and the size of the oil pan was reduced. The only parts carried over from the 1978 engines were the connecting rods. Peak power increased to 90 hp.
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oiling system. The most powerful variant of the Tech IV raised the rev limit to 5500 rpm, and achieved 110 hp (82 kW). The Tech IV uses the same
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with timing gears. Specially-designed bolts that stretch slightly farther than a conventional bolt were used to secure the intake and exhaust manifolds to the
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V6. Over the years, the Tech IV engine has proved to be a reliable workhorse for owners when not pushed to its limits. All 1978-1990 Iron Duke engines used a
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and a delay incorporated into the air conditioning's circuitry to prevent the compressor from engaging until twelve seconds after the engine was started.
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the only engines Pontiac built were 350 cu in (5.7 L), 400 cu in (6.6 L), and 455 cu in (7.5 L) versions of
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tended to experience drivability issues in hot weather, other improvements were made including a cut-off switch that shut the compressor off at
691: 2411: 2773: 1251: 148: 123: 57: 647:, instead of the Buick-Oldsmobile-Pontiac V8 pattern. The following year use of the engine expanded to the Sunbird's Chevrolet and 569:
system to ensure power output from each cylinder was equalized. Power consumption of the water and oil pumps were reduced, and the
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Kansas Racing Products continued to make the engines in the early 21st century after buying rights to make them from GM.
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gear that meshed directly with a steel gear on the crankshaft. 1991-92 VIN R and U engines used a timing chain instead.
916: 599:, to allow slight movement while maintaining the seal of the gaskets in order to prevent cracking the manifolds as they 315: 83: 2229: 2184: 2099: 1935: 704: 616: 472: 958: 2395: 2284: 2268: 1262: 1239: 663: 90: 50: 2612: 2558: 2132: 2104: 915:. Several significant changes were made in 1987, which included: an improved cylinder head, intake manifold, and 566: 349: 881: 2778: 2489: 2470: 2461: 2116: 1968: 1079: 519: 72: 2621: 2368: 2293: 2238: 2064: 2013: 667: 508: 919:
module; a more-modern serpentine belt with an automatic spring-loaded tensioner for the accessories; and a
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engine, it was used in a wide variety of vehicles across GM's lineup in the 1980s as well as supplied to
2576: 2036: 1043: 1037: 724: 592: 539: 267: 643:. As these cars were originally designed for Chevrolet engines, the Iron Duke also used the Chevrolet 550:, which would have increased the weight, complexity, and cost of the engine. Despite sharing the same 514:
The development team's design goals were to minimize noise and vibration while maximizing durability,
2436: 2300: 1243: 681: 460: 194: 2594: 2111: 2078: 1950: 1019: 844: 656: 206: 161: 28: 1359:"GM's Unkillable Iron Duke 4-Cylinder Engine Powered Dozens Of Trucks, Cars, and SUVs For Decades" 2601: 2565: 2361: 2215: 2125: 2006: 1959: 1736: 820: 620: 1695: 2528: 2519: 2477: 2445: 2210: 1977: 1231: 1073: 678: 600: 588: 488: 275: 97: 2427: 2220: 2205: 2092: 2055: 2048: 2025: 1992: 1924: 1103: 1097: 1025: 1013: 838: 727:. The 1980 through 1983 Jeep CJs were also available with the Iron Duke as the base engine. 893:(TBI, via a single injector in the throttle body) in 1982. This version was christened the 2585: 2535: 2352: 2325: 2259: 2170: 2157: 2069: 1987: 1943: 1909: 1055: 1006: 923:(DIS). This revision to the engine increased power to 98 hp (73 kW). In 1988, a 868: 862: 856: 826: 652: 640: 636: 562: 527: 504: 484: 361: 226: 1384: 677:
For 1980 the Iron Duke engine was redesigned to be mounted transversely, to suit the new
1411:"For the last time, the Iron Duke was not the same engine as the Chevy II four-cylinder" 515: 2496: 2338: 2148: 1733: 1049: 1031: 1000: 899: 890: 543: 535: 531: 464: 414: 396: 344: 166: 2767: 2454: 2245: 2139: 2043: 2020: 1259: 1091: 994: 988: 924: 850: 814: 632: 596: 551: 547: 500: 456: 424: 371: 249: 216: 199: 1085: 929: 644: 581: 577: 236: 17: 1633: 1332: 1606: 1579: 1550: 1521: 1436: 1331:. Society of Automotive Engineers: Passenger Car Meeting. Detroit. Archived from 1914: 1666: 1276: 1062: 949: 796: 712: 671: 611: 570: 468: 39: 2549: 912: 808: 708: 696: 648: 607: 573:, cylinder bores, and crankshaft journals were designed to minimize friction. 555: 453: 311: 262: 1488: 662:
For the 1979 model year, the engine was extensively redesigned. The original
2747: 1690: 1279:, double-overhead cam head for the 3.0 L version of the racing engine ( 976:
1990 GM Iron Duke engine with parts cut away to reveal the inner arrangement
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This article is about the automobile engine. For the steam locomotive, see
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subcompact cars, replacing the 2.3 L Vega engine, and in the compact
511:), but ultimately decided to create an entirely new four-cylinder engine. 2254: 1280: 1272: 942: 337: 325: 558:
as the Brazilian engine, the majority of parts are not interchangeable.
2510: 939: 832: 720: 290: 1464:"1982: Luxurious AMC Concord gets Ziebart no-rust, GM Iron Duke power" 2714: 2703: 2681: 2670: 1235: 381: 684:. The bellhousing bolt pattern was revised to match that of the new 670:, a new two-barrel carburetor called "Vara-Jet" was introduced, the 707:(AMC) starting with the 1980 model year. It was the base engine in 2725: 2692: 690: 1230:
four-cylinder racing engines of the 1980s, the last in a line of
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34.4 hp (25.7 kW)-44.5 hp (33.2 kW) per liter
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derived from the V8, and an inline-four derived from one of the
305: 1699: 2736: 33: 907:-Tech IV. Power output increased to 90 hp (67 kW). 880: 467:
from 1977 until 1993. Originally developed as Pontiac's new
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as compared to the original Chevrolet design and the newer
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racing boats. Super Duty engines continued to be used in
1607:"Are carburetors kaput? Coming: throttle-body injection" 631:
The Iron Duke's first applications were in the 1977
1580:"U.S. compacts: Is Chrysler's K-car the new champ?" 522:'s 151 cu in (2.5 L) version of the 420: 410: 405: 395: 390: 380: 370: 360: 355: 343: 331: 321: 304: 299: 289: 284: 274: 261: 248: 235: 225: 215: 205: 193: 188: 180: 172: 160: 155: 141: 64:. Unsourced material may be challenged and removed. 1226:The Iron Duke block formed the basis of Pontiac's 729: 1711: 1573: 1571: 1544: 1542: 8: 1551:"GM's X-cars challenge traditional compacts" 1512: 1510: 1317: 1315: 1313: 1311: 1309: 1307: 1305: 1303: 1301: 1232:high-performance Pontiac Super Duty engines 1718: 1704: 1696: 1115: 147: 138: 1325:Pontiac's New 2.5 Litre 4 Cylinder Engine 1246:(in GTP and GTU class cars), and even in 783:125 lb⋅ft (169 N⋅m) @ 2400 rpm 772:134 lb⋅ft (182 N⋅m) @ 2400 rpm 750:123 lb⋅ft (167 N⋅m) @ 2800 rpm 124:Learn how and when to remove this message 2661: Italicized engines manufactured by 1746: 1322:Sawruk, John M. (26–30 September 1977). 452:) is a 151 cu in (2.5 L) 136:Reciprocating internal combustion engine 1297: 954: 2609: 2589: 2546: 2163: 2031: 719:automobiles, as well as in base-model 503:of the V8 (in the same fashion as the 2627: 2573: 2122: 1749: 1578:Dunne, Jim; Jacobs, Ed (March 1981). 1409:Strohl, Daniel (September 20, 2019). 386:123–135 lb⋅ft (167–183 N⋅m) 7: 1549:Dunne, Jim; Jacobs, Ed (July 1979). 703:GM also began selling the engine to 615:four-cylinder engines equipped with 526:—with a shorter 3-inch (76 mm) 280:8.25:1 (1977–1983) 9.0:1 (1984–1993) 62:adding citations to reliable sources 1634:"GM 2.5L Iron Duke I4 Engine Guide" 1462:Martin, Murilee (11 October 2017). 780:84 hp (63 kW) @ 4000 rpm 769:90 hp (67 kW) @ 4000 rpm 747:85 hp (63 kW) @ 4400 rpm 1632:Weinstein, Joshua (June 8, 2022). 1357:Hunting, Benjamin (May 26, 2021). 1254:racing until well into the 2000s. 211:150.8 cu in (2.5 L) 25: 1389:The Daily Drive by Consumer Guide 1383:Appel, Tom (September 12, 2018). 1204:3.2 L (198 cu in) 1183:3.0 L (182 cu in) 1162:2.7 L (163 cu in) 1154:2.5 L (151 cu in) 1133:2.1 L (131 cu in) 524:Chevrolet 153 cu in four-cylinder 1435:Weissler, Paul (November 1978). 1074:Oldsmobile Calais/Cutlass Calais 969: 957: 580:was made of cast iron with five 530:and longer 6-inch (150 mm) 38: 1248:American Power Boat Association 1234:. The engines were featured in 921:Distributorless Ignition System 548:counter-rotating balance shafts 49:needs additional citations for 761:128 lb⋅ft (174 N⋅m) 366:85–110 hp (63–82 kW) 1: 1240:Charlotte/Daytona Dash Series 1001:Buick Somerset/Somerset Regal 546:. This obviated the need for 1605:Dunne, Jim (February 1982). 1520:; Jacobs, Ed (August 1978). 917:throttle-body fuel injection 889:Iron Dukes were fitted with 682:General Motors "X-body" cars 591:was eschewed in favor of an 316:Throttle-body fuel injection 1437:"Servicing the '79 GM Cars" 705:American Motors Corporation 576:To maximize durability the 534:—had significantly reduced 473:American Motors Corporation 2800: 2654: 2641: 2638: 2635: 2632: 2620: 2611: 2593: 2584: 2575: 2548: 2534: 2527: 2516: 2507: 2500: 2493: 2476: 2474: 2465: 2460: 2453: 2449: 2440: 2435: 2431: 2426: 2419: 2417: 2408: 2403: 2399: 2394: 2390: 2385: 2367: 2356: 2348: 2344: 2335: 2331: 2322: 2315: 2310: 2308: 2304: 2290: 2283: 2276: 2272: 2267: 2263: 2258: 2253: 2249: 2244: 2237: 2233: 2226: 2200: 2195: 2192: 2188: 2183: 2181: 2167: 2145: 2136: 2131: 2124: 2115: 2110: 2103: 2091: 2077: 2042: 2012: 2005: 1998: 1991: 1986: 1983: 1974: 1967: 1965: 1958: 1956: 1949: 1942: 1934: 1930: 1921: 1908: 1766: 1763: 1760: 1757: 1754: 932:pattern as the 2.8 L 903:later ridiculed it as the 664:reverse-flow cylinder head 26: 2774:Gasoline engines by model 2649: 2644: 2600: 2598: 2582: 2569: 2564: 2557: 2543: 2532: 2525: 2518: 2509: 2504: 2495: 2488: 2486: 2483: 2469: 2458: 2444: 2410: 2383: 2379: 2374: 2372: 2365: 2360: 2351: 2337: 2324: 2299: 2297: 2292: 2281: 2242: 2228: 2219: 2214: 2209: 2204: 2169: 2156: 2154: 2147: 2138: 2098: 2096: 2089: 2084: 2075: 2068: 2063: 2054: 2047: 2035: 2024: 2019: 2017: 2003: 1976: 1939: 1923: 1744: 1659:"Cosworth Type Reference" 1385:"What Was The Iron Duke?" 1292:1979 Chevy Monza Brochure 1220: in (100.0 mm) 1157:3 in (76.2 mm) 645:bell housing bolt pattern 567:exhaust gas recirculation 401:375 lb (170 kg) 221:4 in (101.6 mm) 146: 2744:     2733:     2722:     2711:     2700:     2689:     2678:     2667:     2659:     1903: 1900: 1897: 1894: 1891: 1888: 1885: 1882: 1879: 1876: 1873: 1870: 1867: 1864: 1861: 1858: 1855: 1852: 1849: 1846: 1843: 1840: 1837: 1834: 1831: 1828: 1825: 1822: 1819: 1816: 1813: 1810: 1807: 1804: 1801: 1798: 1795: 1792: 1789: 1786: 1783: 1780: 1777: 1774: 1771: 1199: in (92.1 mm) 1178: in (82.6 mm) 1149: in (66.0 mm) 1080:Oldsmobile Cutlass Ciera 758:90 hp (67 kW) 606:A two-stage, two-barrel 540:2.3 L four-cylinder 231:3 in (76.2 mm) 495:derived from the V8, a 2197:Chevrolet Turbo-Thrift 1739:timeline, 1980–present 886: 700: 461:Pontiac Motor Division 2784:Straight-four engines 1489:"Jeep Engine: GM 151" 1120:Engine Displacements 1038:Chevrolet S-10 Blazer 884: 694: 593:overhead valve design 1691:Jeep 151 information 1283:Project DBA, 1987). 1244:IMSA GT Championship 505:1961 Pontiac Tempest 58:improve this article 1121: 1050:GMC S-15/GMC Sonoma 1020:Chevrolet Celebrity 845:Oldsmobile Starfire 536:secondary vibration 483:At the time of the 176:Tech IV (1982-1990) 29:GWR Iron Duke Class 18:GM Iron Duke engine 1495:. December 1, 2010 1443:. pp. 162–164 1338:on 5 February 2018 1116: 887: 821:Chevrolet Citation 701: 666:was replaced by a 627:Early applications 621:wide open throttle 73:"Iron Duke engine" 2761: 2760: 2756: 2755: 1730: 1441:Popular Mechanics 1258:powered the 1984 1224: 1223: 1069:delivery vehicle) 787: 786: 589:overhead camshaft 509:"Trophy 4" engine 430: 429: 291:Max. engine speed 276:Compression ratio 134: 133: 126: 108: 16:(Redirected from 2791: 2750: 2745: 2739: 2734: 2728: 2723: 2717: 2712: 2706: 2701: 2695: 2690: 2684: 2679: 2673: 2668: 2662: 2660: 2065:Vauxhall Slant-4 1747: 1728: 1720: 1713: 1706: 1697: 1678: 1677: 1675: 1674: 1665:. 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281: 278: 272: 271: 265: 259: 258: 253: 246: 245: 240: 237:Cylinder block 233: 232: 229: 223: 222: 219: 213: 212: 209: 203: 202: 197: 191: 190: 186: 185: 182: 178: 177: 174: 170: 169: 167:General Motors 164: 158: 157: 153: 152: 144: 143: 135: 132: 131: 46: 44: 37: 24: 14: 13: 10: 9: 6: 4: 3: 2: 2796: 2785: 2782: 2780: 2777: 2775: 2772: 2771: 2769: 2749: 2741: 2738: 2730: 2727: 2719: 2716: 2708: 2705: 2697: 2694: 2686: 2683: 2675: 2672: 2664: 2656: 2655: 2652: 2648: 2630: 2626: 2623: 2619: 2616: 2615: 2608: 2605: 2604: 2596: 2592: 2587: 2580: 2579: 2572: 2567: 2562: 2561: 2556: 2553: 2552: 2542: 2539: 2538: 2530: 2524: 2521: 2514: 2513: 2503: 2498: 2491: 2482: 2479: 2472: 2468: 2463: 2456: 2452: 2447: 2443: 2438: 2434: 2429: 2425: 2422: 2416: 2413: 2406: 2402: 2397: 2393: 2388: 2382: 2377: 2370: 2363: 2359: 2354: 2347: 2342: 2341: 2334: 2329: 2328: 2321: 2318: 2313: 2307: 2302: 2295: 2289: 2286: 2279: 2275: 2270: 2269:Chevrolet 90° 2266: 2261: 2256: 2252: 2247: 2240: 2236: 2231: 2224: 2223: 2217: 2212: 2207: 2203: 2198: 2191: 2186: 2178: 2177: 2174: 2173: 2166: 2161: 2160: 2152: 2151: 2144: 2141: 2134: 2130: 2127: 2121: 2118: 2113: 2109: 2106: 2101: 2094: 2087: 2083: 2080: 2073: 2072: 2066: 2062: 2059: 2058: 2052: 2051: 2045: 2040: 2039: 2034: 2029: 2028: 2022: 2015: 2011: 2008: 2001: 1997: 1994: 1989: 1982: 1979: 1973: 1970: 1964: 1961: 1955: 1952: 1947: 1946: 1937: 1933: 1928: 1927: 1918: 1916: 1913: 1911: 1907: 1770: 1752: 1748: 1743: 1738: 1735: 1731: 1721: 1716: 1714: 1709: 1707: 1702: 1701: 1698: 1692: 1689: 1688: 1684: 1669:on 2011-02-22 1668: 1664: 1663:Race-cars.com 1660: 1654: 1651: 1639: 1635: 1628: 1625: 1612: 1608: 1601: 1598: 1585: 1581: 1574: 1572: 1568: 1556: 1552: 1545: 1543: 1539: 1527: 1523: 1519: 1513: 1511: 1507: 1494: 1490: 1484: 1481: 1469: 1465: 1458: 1455: 1442: 1438: 1431: 1428: 1416: 1412: 1405: 1402: 1390: 1386: 1379: 1376: 1364: 1360: 1353: 1350: 1334: 1327: 1326: 1318: 1316: 1314: 1312: 1310: 1308: 1306: 1304: 1302: 1298: 1291: 1290: 1286: 1284: 1282: 1278: 1274: 1270: 1267: 1264: 1263:Indy Pace Car 1261: 1255: 1253: 1249: 1245: 1241: 1237: 1233: 1229: 1206: 1203: 1202: 1185: 1182: 1181: 1164: 1161: 1160: 1156: 1153: 1152: 1135: 1132: 1131: 1127: 1125:Displacement 1124: 1123: 1119: 1111: 1105: 1101: 1099: 1095: 1093: 1092:Pontiac Fiero 1089: 1087: 1083: 1081: 1077: 1075: 1071: 1068: 1064: 1060: 1057: 1053: 1051: 1047: 1045: 1041: 1039: 1035: 1033: 1029: 1027: 1023: 1021: 1017: 1015: 1011: 1008: 1004: 1002: 998: 996: 995:Buick Skylark 992: 990: 989:Buick Century 986: 985: 982:Applications: 972: 967: 960: 955: 953: 951: 946: 944: 941: 937: 936: 931: 926: 925:balance shaft 922: 918: 914: 908: 906: 902: 901: 896: 892: 883: 876: 870: 866: 864: 860: 858: 854: 852: 851:Pontiac Astre 848: 846: 842: 840: 836: 834: 830: 828: 824: 822: 818: 816: 815:Buick Skylark 812: 810: 806: 804: 800: 798: 794: 793: 790:Applications: 782: 779: 776: 775: 771: 768: 765: 764: 760: 757: 754: 753: 749: 746: 743: 742: 738: 735: 732: 731: 728: 726: 725:four-cylinder 722: 718: 714: 710: 706: 698: 693: 689: 687: 686:60° V6 engine 683: 680: 675: 673: 669: 665: 660: 658: 654: 650: 646: 642: 638: 634: 626: 624: 622: 618: 613: 609: 604: 602: 598: 597:cylinder head 594: 590: 587: 583: 582:main bearings 579: 574: 572: 568: 564: 559: 557: 553: 549: 545: 541: 537: 533: 529: 525: 521: 517: 512: 510: 506: 502: 498: 494: 490: 486: 478: 476: 474: 470: 466: 462: 459:built by the 458: 457:piston engine 455: 451: 447: 443: 439: 436:(also called 435: 426: 425:GM 122 engine 423: 419: 416: 413: 409: 404: 400: 398: 394: 389: 385: 383: 382:Torque output 379: 375: 373: 369: 365: 363: 359: 354: 351: 348: 346: 342: 339: 336: 334: 330: 327: 324: 320: 317: 313: 310: 307: 303: 298: 294: 292: 288: 283: 279: 277: 273: 269: 266: 264: 260: 257: 254: 251: 250:Cylinder head 247: 244: 241: 238: 234: 230: 228: 227:Piston stroke 224: 220: 218: 217:Cylinder bore 214: 210: 208: 204: 201: 200:Straight-four 198: 196: 195:Configuration 192: 187: 183: 179: 175: 171: 168: 165: 163: 159: 154: 150: 145: 140: 128: 125: 117: 106: 103: 99: 96: 92: 89: 85: 82: 78: 75: –  74: 70: 69:Find sources: 63: 59: 53: 52: 47:This article 45: 41: 36: 35: 30: 19: 2650: 2628: 2613: 2602: 2577: 2559: 2550: 2536: 2511: 2362:Cadillac OHV 2339: 2326: 2317:High Feature 2221: 2171: 2158: 2149: 2070: 2056: 2049: 2037: 2026: 1999: 1944: 1925: 1750: 1671:. Retrieved 1667:the original 1662: 1653: 1641:. Retrieved 1638:Junkyard Mob 1637: 1627: 1615:. Retrieved 1613:. p. 52 1610: 1600: 1588:. Retrieved 1586:. p. 46 1583: 1558:. Retrieved 1554: 1529:. Retrieved 1525: 1497:. Retrieved 1493:jeeptech.com 1492: 1483: 1471:. Retrieved 1467: 1457: 1445:. Retrieved 1440: 1430: 1418:. Retrieved 1414: 1404: 1392:. Retrieved 1388: 1378: 1366:. Retrieved 1362: 1352: 1340:. Retrieved 1333:the original 1324: 1271: 1268: 1256: 1227: 1225: 1117: 1086:Pontiac 6000 947: 933: 909: 904: 898: 894: 888: 702: 676: 661: 630: 605: 578:engine block 575: 571:piston rings 560: 520:GM do Brasil 513: 482: 449: 445: 441: 437: 433: 431: 362:Power output 350:Water-cooled 207:Displacement 162:Manufacturer 120: 114:January 2014 111: 101: 94: 87: 80: 68: 56:Please help 51:verification 48: 2405:Small Block 1643:January 20, 1499:January 20, 1473:January 20, 1420:January 20, 1394:January 20, 1368:January 20, 1363:DrivingLine 1266:available. 1063:Grumman LLV 950:Grumman LLV 930:bellhousing 797:AMC Concord 679:front-drive 672:distributor 651:twins, the 586:belt-driven 516:drivability 479:Development 469:economy car 446:Pontiac 2.5 411:Predecessor 173:Also called 2768:Categories 2529:Detroit 60 2490:Oldsmobile 2471:Oldsmobile 2437:Oldsmobile 2301:High Value 2260:Buick/3800 1673:2012-06-04 1518:Dunne, Jim 1287:References 1228:Super Duty 1118:Super Duty 1112:Super Duty 1102:1985–1991 1096:1982–1985 1090:1984–1988 1084:1982–1991 1078:1982–1992 1072:1985–1991 1061:1987–1994 1056:GMC Safari 1054:1985–1990 1048:1985–1993 1042:1985–1987 1036:1985–1987 1030:1985–1993 1024:1990–1992 1018:1982–1990 1012:1982–1985 1005:1985–1990 999:1985–1987 993:1982–1991 987:1982–1992 913:crankshaft 861:1977–1980 855:1977–1981 843:1978–1980 837:1980–1981 831:1980–1983 825:1978–1980 819:1980–1981 813:1980–1981 809:AMC Spirit 807:1980–1982 801:1981–1983 795:1981–1982 697:AMC Spirit 649:Oldsmobile 608:carburetor 454:straight-4 406:Chronology 397:Dry weight 391:Dimensions 333:Oil system 312:Carburetor 300:Combustion 263:Valvetrain 181:Production 84:newspapers 2748:VM Motori 2595:Family II 2396:Big Block 2376:Blackwing 2369:Northstar 2294:Shortstar 2285:Gen V 90° 2112:Family II 2000:Iron Duke 1993:GM Ecotec 1617:27 August 1590:27 August 1560:18 August 1531:18 August 1447:17 August 1342:17 August 1058:Cargo Van 1009:Cargo Van 935:60-Degree 897:, though 803:AMC Eagle 542:from the 421:Successor 322:Fuel type 285:RPM range 256:Cast iron 243:Cast iron 184:1977–1993 142:Iron Duke 2603:Family B 2586:Circle L 2566:Family Z 2312:Opel 54° 2239:Opel CIH 2126:Family 1 2014:Opel CIH 2007:Family 0 1960:Family 0 1910:Gasoline 1729:previous 1468:Autoweek 1415:Hemmings 1281:Cosworth 1277:16-valve 1273:Cosworth 943:camshaft 721:Jeep CJs 657:Starfire 338:Wet sump 326:Gasoline 295:5000 rpm 252:material 239:material 156:Overview 2520:Duramax 2505:Inline 2478:Duramax 2462:Detroit 2446:Pontiac 1978:E-Turbo 1727:«  1215:⁄ 1194:⁄ 1173:⁄ 1144:⁄ 1128:Stroke 940:micarta 895:Tech IV 877:Tech IV 833:Jeep CJ 739:Torque 713:Concord 641:Phoenix 637:Sunbird 450:Tech IV 98:scholar 2746:  2735:  2724:  2715:Nissan 2713:  2704:Suzuki 2702:  2691:  2682:Toyota 2680:  2671:Subaru 2669:  2651:Legend 2645:2020s 2642:2010s 2639:2000s 2636:1990s 2633:1980s 2455:Diesel 2428:Holden 2412:Gemini 2278:GM 60° 2140:GM L3B 2093:Saturn 2044:Quad 4 2021:Saab H 1936:Inline 1767:2020s 1764:2010s 1761:2000s 1758:1990s 1755:1980s 1737:engine 1242:, the 1236:NASCAR 736:Power 715:, and 709:Spirit 528:stroke 448:, and 356:Output 308:system 189:Layout 100:  93:  86:  79:  71:  2726:Honda 2693:Isuzu 2421:LS/LT 2353:Buick 2246:E-TEC 2230:Atlas 2216:Black 2185:Atlas 2100:Atlas 2079:S-TEC 1951:S-TEC 1336:(PDF) 1329:(PDF) 1260:Fiero 867:1977 849:1977 777:1981 766:1980 755:1979 744:1978 733:Year 717:Eagle 695:1982 653:Monza 633:Astre 612:choke 105:JSTOR 91:books 2629:Type 2497:DMAX 2222:RB30 2211:Blue 1915:Flat 1751:Type 1645:2023 1619:2019 1592:2019 1562:2019 1533:2019 1501:2023 1475:2023 1449:2019 1422:2023 1396:2023 1370:2023 1344:2019 1252:ARCA 1067:USPS 948:The 655:and 635:and 565:and 552:bore 442:2500 432:The 306:Fuel 77:news 2737:BMW 2622:MDE 2551:JTD 2512:M51 2206:Red 2133:122 2117:SGE 2105:MGE 1969:SGE 1238:'s 905:low 507:'s 463:of 438:151 268:OHV 60:by 2770:: 2560:RA 2544:4 2537:6H 2484:6 2349:8 2193:6 2179:5 2057:ZR 2050:ZZ 2027:AZ 1984:4 1940:3 1926:EJ 1919:4 1904:4 1889:9 1859:9 1829:9 1799:9 1734:GM 1732:— 1661:. 1636:. 1609:. 1582:. 1570:^ 1553:. 1541:^ 1524:. 1509:^ 1491:. 1466:. 1439:. 1413:. 1387:. 1361:. 1300:^ 1217:16 1213:15 711:, 688:. 659:. 603:. 497:V4 493:V6 444:, 440:, 2614:A 2578:E 2340:J 2327:H 2255:V 2172:J 2159:G 2150:X 2071:A 2038:G 1945:G 1901:3 1898:2 1895:1 1892:0 1886:8 1883:7 1880:6 1877:5 1874:4 1871:3 1868:2 1865:1 1862:0 1856:8 1853:7 1850:6 1847:5 1844:4 1841:3 1838:2 1835:1 1832:0 1826:8 1823:7 1820:6 1817:5 1814:4 1811:3 1808:2 1805:1 1802:0 1796:8 1793:7 1790:6 1787:5 1784:4 1781:3 1778:2 1775:1 1772:0 1719:e 1712:t 1705:v 1676:. 1647:. 1621:. 1594:. 1564:. 1535:. 1503:. 1477:. 1451:. 1424:. 1398:. 1372:. 1346:. 1210:+ 1208:3 1196:8 1192:5 1189:+ 1187:3 1175:4 1171:1 1168:+ 1166:3 1146:5 1142:3 1139:+ 1137:2 1065:( 127:) 121:( 116:) 112:( 102:· 95:· 88:· 81:· 54:. 31:. 20:)

Index

GM Iron Duke engine
GWR Iron Duke Class

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Configuration
Straight-four
Displacement
Cylinder bore
Piston stroke
Cylinder block
Cast iron
Cylinder head
Cast iron
Valvetrain
OHV
Compression ratio
Max. engine speed
Fuel

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