1966 pontiac 421 engine specspacific basketball coach

It used a declutching fan, special exhaust manifolds, and chrome low-restriction air cleaners; rocker covers and oil-filler cap also were chrome. It was rated 180hp (134kW) @ 4600rpm and 264lbft (358Nm) @ 2400rpm with a two-barrel carburetor, 200hp (149kW) @ 4600rpm and 278lbft (377Nm) @ 2800rpm with the four-barrel carburetor. Greater throughput mixed with the proper amount of fuel and ignited at the ideal time for the flame to expand against the piston will result in more power. Wires: NAPA Belden 7 mm The 2+2 reverted to option status for '67, then died, a proud relic of a time when big cars, Pontiacs in particular, ruled the streets. Learn how Classified Ads works . All Pontiac V8s from 1955 to 1959 were reverse cooled, known as the "gusher" cooling system. One of the key modifications over the standard 301 4-barrel was the 301 Turbo block. Again, its bore was expanded, this time 0.03in (0.76mm) to 4.1525in (105.47mm). Year. Shipping to: 98837. The heart of the build, a code 45B 1964 421 HO 370 HP manual trans 4-bolt main block, all Pontiac 421 engines without exception had 4-bolt main caps. By early 1979, orders for the W72 package were being rejected by dealers as they supply had run dry. #9770716 aka "716" heads featured a 170cc intake port volume, and were considered a milder "street" version of the vaunted SD421 Super Duty heads. The mighty Pontiac 421 was a star on the drag strip and a super nova on the Nascar tracks of the first half of the 60s. Duration at .050: 247/252-deg Engine Block Date Code. From 1977 to 1981 there were 4 distinct 301 versions: For 1981 model year vehicles, the engine codes are the 8th digit of the VIN. Both Chevy and Ford had 427 cu in performance engines, so Pontiac simply referred to its 427 as a 428 to one-up them. These guys lived by mathematics since every function of an engine that converts chemical to mechanical energy can be assigned a number. Installed position: 110-deg These muscle car profiles include photos and specifications for each model: For related car information, go to these articles: Please copy/paste the following text to properly cite this HowStuffWorks.com article: the Auto Editors of Consumer Guide [citation needed]. Located at the back of the engine near the Distributor. superior_queens (3,035) 100%. In 1969, Pontiac unveiled its Trans Am model Firebird, and since racing rules required engines of less than 5L (305.1cuin), Pontiac unveiled the 303 for racing models only, never available to the public. which was seen on the hood of the 1957 Daytona Grand National winning car driven by Cotton Owens. Tri Power engine however was optional. The 1971 Pontiac 455 HO was Pontiac's first engine to receive a special 800cuft/min (23m3/min) Rochester Quadra-jet carburetor with specific jetting. According to the June 2019 issue of Muscle car Review magazine, during dyno testing performed during that era, the National Hot Rod Association (NHRA) rated this Pontiac W72 400 T/A 6.6 engine at 260 to 280 net horsepower instead of the 220-hp rating published by Pontiac. Unlike previous enlargements of Pontiac V8s, it did not replace the 389. . 301 Turbo (210hp, 157kW), (with the 5th VIN character being a "T". 1. For the 1978 model year, Pontiac re-incorporated the earlier thicker cast cast engine block denoted by the cast number 418988 and a "XX" cast into the side of the block. The cylinder heads on the 400 CID version had an intake port volume of 290cc (17.70cuin), nearly twice the size of a typical standard D-port Pontiac head - and flowed in the area of 315cuft/min (8.9m3/min) @ 0.8in (20mm) valve lift; in the realm of the NASCAR-dominating Chrysler 426 Hemi. Casting No. While production of 196970 A-body Ram Air IV cars was low at just 1563 units(759 1969 GTOs including 302 Judges, and 804 1970 GTOs including 397 Judges) 1969 and 1970 model year F-body Ram Air IV cars were even rarer at just 245 total units produced. Using an equation the author has provided in HPP many timesmost recently with The Mule engine seriesit was revealed that around 228.6-cfm flow though the intake port of the cylinder head is required to produce the desired 470 hp. Required airflow at 28 in/H2O = HP/ # of cylinders/0.257 It was factory rated at 366hp at 5,400 RPM and 445lbs.ft. Valve seals: U.S. Seal Pontiac Engine Torque Specs Pontiac Engine Torque Specs. For 1971, Pontiac introduced another High Output (HO) version with standard internal parts, a reinforced block with four-bolt main bearing caps, and improved cylinder head design with 18-inch taller (3.2mm) intake ports and special round exhaust ports for better breathing, yet still making just 335hp (250kW) gross (or 310hp (231kW) in the more accurate SAE Net system). For '65, the 421-cid V-8 became a standard part of the option package, and for '66, Pontiac made the 2+2 a separate model, still based on the Catalina two-door hardtop or convertible. It was offered in the following forms: For 1957 the V8's stroke was increased to 3.5625in (90.49mm), for a displacement of 347cuin (5.7L). The base engine was the 421 four-barrel with 338 horsepower. Three two-barrel carburetors, 10.75:1 compression, 290hp (216kW) @ 5000rpm, 375lbft (508Nm) @ 2800rpm. The Pontiac 2+2 featured a 6.9 L V8 engine, heavy-duty front springs, dual exhaust and distinctive exterior body design. Displacement (CID) Bore (Inches) Stroke (Inches) Mains (Inches) 1955. Preparation: Magnaflux, check for equal stroke and index, grind, polish 0.010-in 1966 Pontiac GTO. Pontiac Engine Torque Specifications. In 1977 the 400-cubic-inch (6.6L) T/A 6.6, (RPO code W72) was created to fulfil the performance engine gap in the Pontiac line-up. Headers: Hooker Super Comp (for dyno test) There are no manual transmission equipped Trans Ams that came factory with the standard L78 400 motor in 1977-79. . Collector size: 3.00-inGASKETS By 1963, the more powerful Pontiac 421 was beginning to outshine the 389 for performance applications. A panel covers the dash opening where the radio would have been on a standard Catalina. for 1980, and the 8th being a "T" for 1981). Make way for one of the baddest muscle cars of all time, the, An all-aluminum, race-proven V-8 defined the rare and wicked, The engine is what gives a muscle car its flamboyant personality. That's the factory rating of the legendary 421 H.O. One of the key upgrades were the 6x4 heads. There were 11 different Pontiac V8 engine options for 1966, starting with the 326-cid 250-hp Tempest base V8. Special Offer on Antivirus Software From HowStuffWorks and TotalAV Security. Pontiac listed the 290hp (216kW) rating at 4000 rpm for a motor that had a 5700rpm redline on the factory tachometer. Jets, Primary: Center #64 adjust power valvespring for 12 Hg at 1,000 rpm Released in 1961, the 421 was a bored and stroked 389 which sported a bore of 4.094 and a stroke of 4.00. Low-performance and two-barrel applications, the standard engine in full-sized Pontiacs, got 1.96in (49.8mm) intake and 1.66in (42.2mm) exhaust valves and pressed in rocker arm studs. The W72 Performance Package also included an upgrade to the rear differential ratio, setting the rear gear ratio to 3.23 for all 1977 and 1979 W72 Firebirds, with the exception being 3.42 for 4-speed equipped W72 Firebirds in 1978 only. From 1959 to 1966 Pontiac continues making improvements. It included a new camshaft with duration increased from 288/302 (No. Beginning in 1967 casting numbers moved to the rear of the block just behind cylinder #8. Most Pontiac engines like total timing (rev engine past 3000 or so until the mechanical advance stops moving/advancing, vacuum advance disconnected to check total timing) somewhere between 32 and 36 degrees. The Pontiac 389 engine was produced from 1959 to 1966, and has a 4.06" bore and 3.75" stroke. 1966: 421: 9782611 (late) 1967-1969. Officially named the Quadra-Power 400 for 1967 and renamed 400 HO for 1968, the 400 HO was first offered for 1967 as the third engine in the GTO line after the automatic-only 400 2-barrel and the standard 400 4-barrel (the 400 HO would not be offered in the Firebird until the 1968 model year). He thinks the stock exhaust flow of 180 cfm will suffice for this build. 1966 Pontiac Ventura Specifications. Timing chain: LPC, double rollerINDUCTION Math, not gasoline, makes horsepower under the hood of a Pontiac. In 1964 when the new "A" body intermediates came out there was a new corporate (GM) engine size limitation to anything less than 330cuin (5.4L). Deck Height: 10.215-in The 421 engine is available only with related heavy-duty driveline components. Cam was a #541596 McKellar No. Unique exterior features included "2+2" badges, twin lens taillamps, and chrome bodyside gills; Pontiac's famous eight-lug aluminum wheels were the ultimate optional touch. The two inline engines were used through 1954, when Pontiac unveiled its OHV Strato Streak V8 in 1955. Pontiac planned to produce the 1953 models with the V8, but Buick and Oldsmobile appealed to GM management and earned a 2-year delay. What is important is the total timing, the . During 19511952, Pontiac had 23 287cuin (4.7L) V8-equipped 1953 model production prototypes running tests on the GM proving grounds. Detroit, however, was reluctant to relinquish its time-tested biggest-car/best-engine formula. According to the engineers who worked on the project, the SOHC 421 engines produced around 625hp and were capable of turning 7,000 rpm. Starting at the bottom, Jim will employ lighter and stronger parts in the reciprocating assembly, as evidenced by the choice of Howards billet rods and forged Icon pistons. 10 with 308/320 degrees of duration and 0.445/0.447-inch lift (11.3/11.4mm) with 1.65:1-ratio rocker arms and solid lifters, special #529238 forged-steel connecting rods, forged aluminum 4.09-inch (104mm) bore Mickey Thompson pistons, #542990 forged-steel crankshaft with a 4-inch (101.6mm) stroke and 3+14-inch (82.6mm) diameter main journals. The manuals had Hurst shifters. Given that, it was no accident that the leader in intermediate muscle also put together the finest full-size performance machine -- the 1966 Pontiac 2+2. However, the RA II was limited to a 1.50:1 rocker ratio, while the RA IV used a 1.65:1 ratio, which yielded significantly greater total lift and, therefore, superior flow and power. It featured the "744" 301/313 camshaft, which offered more duration and overlap than the "HO". Torque: See Part 2 The 2+2 package was first offered as a $291 option on Catalina hardtops and convertibles in 1964. Pontiac produced the 421 V8 engine from 1961 to 1968. CO2, . The 1972 455 HO was rated at 300hp (224kW) @ 4,000rpm and 415lbft (563Nm) @ 3,200rpm. Pontiac . The Pontiac 2+2 is a full size automobile that was manufactured by Pontiac, built on the B-body chassis.It debuted for the 1964 model year as a trim-only option for the Pontiac Catalina, with special door panels, bucket seats with a center console, and exterior badging.Pontiac marketed the 2+2 as the "big brother" to the popular Pontiac GTO.. Beginning in 1965 the name Catalina was no longer . Rings: LPC (Liberty Performance Components) premium moly, standard tension The Pontiac V8 engine is a family of overhead valve 90 V8 engines manufactured by the Pontiac Division of General Motors Corporation between 1955 and 1981. Over the years he has amassed a library of data from investing in metallurgical testing with a well-respected laboratory. Bore/Stroke: 4.150/4.00-in of torque at 3,600 RPM in the Firebird, with only a small throttle restrictor tab on the Firebird being different. Tri-Power equipped Pontiac hot roda stout piece by anyone's standards. Calling into play enormous power and a decent 55/45 weight distribution, the 2+2 could be launched with little tire spin and guided through corners with alarming efficiency. The most valuable Pontiac GTO is the 1969 Judge convertible with the 370-hp Ram Air IV engine. Along with a cam swap it boosted horsepower from 325 hp with the four-barrel carb to 348 hp in '64. Valve guides: K-Line, liners [19], Parts for Ram Air V engines are not readily available. Bolts or Parts: Lube or Sealer: Torque to: Main Caps. High output Pontiac V8 Cylinder Heads. Only one is known to survive today. The engine came with 543797 (4-barrel) and 9770716 heads for the tri-power and special exhaust manifolds and a 7H cam with 292deg. Piston-to-deck height: 0.009-in Additionally, the 301 W72 never received the option to come equipped with a manual transmission like the standard 301 received in 1979, and disappointingly, production for all Pontiac V8's ended soon after as GM sought to "corporatize" engine production. 1965 Pontiac LeMans GTO Mecum. Intake manifold: Original '64 PMD tri-power "Armasteel" was a trademark of pearlitic malleable iron developed by GM's Saginaw Metal Casting Operations around 1936, which was referred to as "locking ball" cast-iron, as opposed to the "flaking" type found in other engines. Manage Settings This is it! The 421.19cuin (6.9L) was introduced in 1961 as a dealer-installed Super Duty option. The first of the "big journal" Pontiac V8s, it had a bore and stroke of 4+332in 4in (104.0mm 101.6mm) and came with dual four-barrel carburetors. For the 1967 GTO the engine was rated at 360bhp (268kW; 365PS) and had the cast-iron headers. Example: A128 = January 12, 19*8. Engine block and cylinder heads were cast at Saginaw Metal Casting Operations then assembled at Tonawanda Engine before delivery to Pontiac Assembly for installation. Secondary: Front and rear #70 The engine build will be discussed in two parts. These heads can be distinguished from 6x8 heads through a small stamped "4" on the top of the front boss. There were a few 1962 Grand Prix models that came with a 421 SD from the factory so if someone is lucky enough to have one today then they have a car that is probably worth some decent money simply because of the rarity of these models.if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[580,400],'enginefacts_com-medrectangle-3','ezslot_2',115,'0','0'])};__ez_fad_position('div-gpt-ad-enginefacts_com-medrectangle-3-0'); Engine Facts 2023. Preparation: File-fit for end gap if needed, wash Block casting # 9773157. Initially marketed as a 287cuin (4.7L), it went on to be manufactured in displacements between 265cuin (4.3L) and 455cuin (7.5L) in carburated, fuel injected, and turbocharged versions. The horsepower ratings of this era were often dubious, with engines rated higher or lower in output for advertising, political, or insurance purposes. Once corrected the SD-455 was recertified and was released for production in late April 1973. In 1970 the casting number #9799914 Ram Air 400 4-bolt main block also used the 4-bolt main caps on Ram Air applications. All GTOs built from 1964-66 were powered by a 389-cubic-inch V-8 with 10.75:1 compression. The block is still at standard 421 bore size (4.09375") and will be bored to fit standard size forged 428 pistons (4.120"). The short deck engine weighed about 40lb (18kg) less than the other variants and had an 8000 rpm redline. Two four-barrel carburetors, 10.5:1 compression, 285hp (213kW) @ 5100rpm, 330lbft (447Nm) @ 2600rpm. As with all other Pontiac V8 motors that evolved from the 316 V8, the 421 was simply a bored out and stroked version of the popular Pontiac 389 V8. View the Pontiac Engine Torque Specifications for engine repairs and rebuilds. Upon reflection, many did not consider that it was the only large displacement engine still on offer for any performance car on the market, and reconsidered Pontiac's position between the rising CAFE emissions restrictions.[14]. Splayed main caps, head bolts tie into main caps. Diameter: 516-in Year: CU IN: Casting # 1967: 326. [2] This was the engine installed in the Pontiac Executive line of large cars[3] and its largest station wagon, the Pontiac Safari. It was implemented as further development of a cost-effective, more fuel efficient V8 derivative of the 301 V8 for the CAFE requirements. Pre-Owned. On the invoicing for the 1979 model year Firebirds, they had the option listed as L78, however, every 1979 400 equipped car received a W72 engine. (V8) - Stamped on right front side of block or beneath production . Well, gaze upon these numbersa 421ci Pontiac with Tri-Power carburetion. Pontiac engineers tested their 269cuin (4.4L) V8 in 1949 or 1950 against an OHV Oldsmobile Rocket V8 303cuin (5.0L) downsized to 270cuin (4.4L). The 1955-up Pontiac V8 that finally reached the public was an overhead valve engine with cast iron cylinder heads and block and wedge-shaped combustion chambers. The last was the 421 HO and included a high-output camshaft and valve train. Pontiac engines were used in its U.S.-market cars; Canadian-built Pontiac automobiles generally used Chevrolet engines. Beginning in 1961 the Pontiac V-8 (389 and 421) was dubbed the Trophy V-8, due to its many victories in racing. pontiac engine decoder year code c/i hp tran carb car misc 1962 13b 421 3 m 2 x 4 full super duty 1962 13u 421 4 m 2 x 4 full super duty 1962 bu 421 4 m 2 x 4 full super duty . The Pontiac 301 EC (Electronic Controls) version offered in 1981 produced 155hp (116kW) and 245lbft (332Nm), although it's rumoured that the actual output was closer to 170hp (127kW). VEHICLE TYPE . [8] All of these improvements provided the W72 with a power rating of 200hp (203PS; 149kW) at 3600 rpm and 325lbft (441Nm) of torque at 2400 rpm, while the standard L78 400 only produced 180hp (182PS; 134kW) at 3600 rpm and 325lbft (441Nm) of torque at 1600 rpm. Regarding Crower's upgrade suggestions for its . gasoline (petrol) engine with displacement: 6902 cm3 / 421.2 cui, advertised power: 252 kW / 338 hp / 343 PS . Initial advance: 18-deg The engine was dubbed the TEMPEST V-8, a nickname it retained until the end of 1960. The fuel-injected engine became an option on any Pontiac model, carrying a staggering price tag of $500 (almost 15% of the car's base price). At the request of Ed Cole, general manager of Chevrolet, the layout was also used by the Chevrolet V8 released in 1955, an exception to the customary GM policy of allowing a division one year of exclusive use of an internally developed advance. The 455 was fundamentally the same for the 1976 model year, albeit the shaker decal now just read "455".

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