1966 pontiac 421 engine specs

The 301 had a bore and stroke of 4in 3in (101.6mm 76.2mm). The 1972 455 HO was rated at 300hp (224kW) @ 4,000rpm and 415lbft (563Nm) @ 3,200rpm. Like the 326, it was offered in both 2-barrel and 4-barrel versions. These same heads were also used on the 1964 GTO 389 tri-power engines. 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. Pontiac V8 Engine - The engine that sparked the Muscle Car Era The engine was available in all full-size Pontiacs. For 1967, Pontiac retired the 389cuin (6.4L) and replaced it with the 400cuin (6,554cc), a 389 bored-out by +0.06in (1.5mm) to a bore and stroke of 4.12in 3+34in (104.6mm 95.3mm). [20] Pontiac asked Mopar (Chrysler, Dodge, Plymouth) for help in designing it and making it work. They acquired the featured Montero Red 1966 Pontiac Catalina post car, which was equipped from the factory with the 421 H.O. Jim Taylor knows this, so he took a mathematical engineering-style approach to finding 100 hp in a relatively optimized engine. . Melling PN M54D with 60 psi spring, made 70 psi at 6,000 rpm with 30W oil With an identical bore and stroke of 4+116in (103.2mm) and 3+34in (95.3mm) it was precisely half the displacement of the 389 and shared numerous parts with the V8,[1] yet weighed considerably more than half as the engine lower half and block casting were not simply divided down the middle. The valve angle was reduced from 17 degrees to 14 degrees for better breathing. With A/C On, Engine Hot: 421: 1966: With Tri-Carb, With Air Injection reactor: 45S: 0.035: 1968 Pontiac GTO 428 / Royal Bobcat. Unfortunately, that's what happened with the 1963 Pontiac Super Duty 421. Detailed specs review of 1964 Pontiac Catalina Vista 421HO Trophy V-8 If you enjoy the videos and would like to Sponsor me on Patreon, my Creator link is https://www.patreon.com/MyCarStoryWithLouOn "My Car Story" we're in Huntl. The 670 heads were used until May 1967 when they were upgraded to become the "97" heads, which were then replaced late in the model year by the "997" heads which incorporated the upgrades of the "97" heads. . . While not related to the 400 W72, the concept was the same. It was rated at 475hp (354kW). The 303 had shorter connecting rods, smaller 2.5in (64mm) journals and a solid lifter version of the Ram Air IV camshaft. 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). It featured the "744" 301/313 camshaft, which offered more duration and overlap than the "HO". Cam was a #541596 McKellar No. 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. Setting initial timing at idle with the vacuum advance disconnected will usually fall around 12 to 16 degrees, but that's not really important. Type Size Carb Horse Power Tourqe; Tri-Power: 389ci: 3x2bbl: 360 hp @ 5200 rpm: 424 lb-ft @ 3600 rpm: Base 8 . A limited-slip differential and gearing up to 4:11.1 were optional. Returns; . In 1967 the 421 was enlarged to 426.61cuin (7.0L) by increasing its bore to 4.12in (104.6mm). 1963 Pontiac V8 Engine Specs. Installed position: 110-deg Get the best deals on Engines & Engine Parts for 1966 Pontiac GTO when you shop the largest online selection at eBay.com. 1966 Pontiac Grand Prix - conceptcarz.com 1969 - 400 Ram Air III Code 62. 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 tri-power equipped XS-code 389 was shipped with the Ram Air pan in the trunk, and the dealer had to fit it and cut out the underside of the hood scoop to make it functional. 1966 Pontiac GTO. The base engine was the 421 four-barrel with 338 horsepower. Open pressure: 282 pounds at 1.100-in Casting number: 97770716, '64 date Brand: Fel-Pro head and intake/ SCE pan and timing cover pontiac 421 complete engine for sale | eBay 1966 Pontiac Catalina - conceptcarz.com The 338-bhp four-barrel was the base engine. Pontiac . 1966 Pontiac 2+2 for sale near Rogers, Minnesota 55374 - Classics on Stock Pontiac Engine Specs. 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. Along with a cam swap it boosted horsepower from 325 hp with the four-barrel carb to 348 hp in '64. The new-for-1965 "Venturi" body shape and curved side glass were carried over with updates front and rear. An innovative design feature was mounting the rocker arms on ball pivots on studs set into the cylinder head, rather than using a separate rocker shaft. Located at the back of the engine near the Distributor. 1965-75 Pontiac & Tempest Tune-up Specifications Timing chain: LPC, double rollerINDUCTION This 1966 Pontiac 2+2 Convertible is a beautifully restored big-block convertible that is ready for some boulevard cruising! For 1969-1970 GTO the 400 HO included driver operable Ram Air induction and was renamed "400 Ram Air" for 1969 and just "Ram Air" for 1970. Piston-to-deck height: 0.009-in The SD-389 was limited to a single 4-barrel while the SD-421 used dual 4-barrels. Stating in 1962 the "421" and the "421 SD" engine became available as a factory option until 1966. $6.49 shipping. To learn everything you need to know about car engines, see. 1966 Pontiac Catalina 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. Inside the 1966 Pontiac OHC 6 | Mac's Motor City Garage We and our partners use cookies to Store and/or access information on a device. A mechanical system built by Rochester, it was similar in principle, but not identical, to the contemporary Chevrolet "fuelie". However, a few dealers would offer them in the GTO or Firebird and do their own installations, such as Royal Pontiac who offered the "Bobcat" conversion. 1966 Pontiac Catalina . 421 H.O. Tri-Power Engine Build - Part 1 - High Performance Pontiac A common misconception made by enthusiasts was the notion that all Pontiac engine equipped Trans Ams featured the "T/A 6.6" decal on the shaker, however, it was exclusive to the W72 engine that was featured on less than half of all Trans Ams made during this period. The W72 301 was a tuned L37 301 Pontiac V8 with some minor upgrades. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. It was rated at 250hp (186kW) with 8.6:1 compression and 260hp (194kW) at 10.25:1 compression. Flamboyantly styled and expansively proportioned, the 2+2 was unbeatable for sheer presence. [19] The cylinder head design is similar to the Ford FE tunnel-port head used in the GT40 and Can-Am series racing. Pontiac planned to produce the 1953 models with the V8, but Buick and Oldsmobile appealed to GM management and earned a 2-year delay. The 301 Turbo was unique since it had a beefier block than the 197779 versions (which carried on in the non-turbo versions in 1980 and 1981), a very mild camshaft with 0.35in (8.9mm) lift and 250 degrees gross duration, a 60psi (4.1bar) oil pump to ensure adequate oil to the oil-cooled Garrett TBO-305 Turbocharger, a rolled fillet crankshaft, a fully baffled oil pan, and a specific 800cuft/min (23m3/min) Quadrajet carburetor. pontiac timing ???????? | The H.A.M.B. The air cleaners look like those used on the top dog 376 gross HP 421 CI engine but there was also a lesser 356 HP version available too. 1966 Pontiac Catalina 2-Door Sedan full range specs - Automobile-Catalog Engine Year Info Spark Plug Plug Gap Point Gap Dwell Angle Timing (BTDC) Idel RPM Manual Tran. The 1963 Catalina two-door sports sedan pictured here showcases the 421 H.O. [22]. 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 GTO's new hood scoop design, with the inlets centrally located and mounted above the carburetor, provided the opportunity for experimentation. In basic 2-barrel form it produced 290 horsepower and 428ft. pounds of torque in 1968. 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. It also could hold its own against a range of performance cars. Some 400s were dealer installed. Angles used in valve job: 30-deg intake, 45-deg exhaust seat, width 0.040-in intake, 0.060-in exhaust Building a rare Pontiac Catalina Royal Bobcat piece by piece The Pontiac 421 HO was the king of the streets in 1963, producing 353 and 370 horsepower depending on carburetor configuration. The Block Date Code represents the production date of the engine. Preparation: Weigh, soap-and-water wash The shaker wore the decals "455 H.O." Continue with Recommended Cookies. Dual Carter Carburetor 500cuft/min (14m3/min) #3433S (front) and #3435S (rear) carburetors with manual chokes and mechanical linkage. . Pontiac Heads; Pontiac Engine Torque Specs; Pontiac Cars (Body Types) Pontiac Engine Information; Instruction Sheets; Compression Calculator; Ask a Tech Question; Customer Service. of torque at 3,800 RPM in the GTO, and 340 HORSEPOWER at 5,300 RPM and 430-lb.ft. 1966 Pontiac Ventura / Photos, Specs, Design - Auto Museum Online For the truly obsessed, 16 Grand Prixs were built with Pontiac's 421 Super Duty engines, rated at a staggering 370 bhp. It was the top-of-the-line engine unless one opted for the "Ram Air" V-8 derived from it. The 301.6cuin (4.9L) 301 was offered from 1977 to 1981 and also installed in other GM cars during those years. For the first time, Pontiac offered Tri-Power, three two-barrel carburetors with a sequential linkage (replacing the previous dual-quad set-up). [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. It included a new camshaft with duration increased from 288/302 (No. Three two-barrel carburetors, 10.75:1 compression, 290hp (216kW) @ 5000rpm, 375lbft (508Nm) @ 2800rpm. Six reasons to revere the 1966 Pontiac Grand Prix | Hemmings Shipping to: 98837. It's well documented that an internal combustion engine is nothing more than an air pump. 744) and a new valve spring package with dampers to positively control valve action. Muscle Cars. In 1968 the 326 was replaced by the similarly 389-derived 350, which used a 3+78in (98.4mm) bore and 3+34in (95.3mm) stroke for a total displacement of 353.8cuin (5,798cc). The basic package included the heavy-duty suspension, with even stiffer springs and shocks available. The four-barrel 400 was a popular performance option for many of Pontiac's cars. All 1980 Trans Ams received this engine as standard with the option to delete this engine choice as a credit option for the standard L37 301. Secondary: Front and rear #70 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. On premium fuel, it was rated at 207 hp at 5200 rpm and . In the Firebird Ram Air induction for the 400 HO was a separate option for 1969(included with Trans Am) and included with the engine(optional in Formula; included with Trans Am) in 1970. Nevertheless, there appears in the October 72 issue of MOTOR TREND, a road test of a 1973 SD-455 Grand Am. Lobe separation angle: 112-deg Not where most enthusiasts go first. Free shipping on many items | Browse your favorite brands | affordable prices. Pontiac differed from other GM Divisions and most other manufacturers in producing only a single small block V8, rather than adding a larger big block to its line-up. The short deck engine weighed about 40lb (18kg) less than the other variants and had an 8000 rpm redline. [9], The W72 engine was standard in all 1977 Pontiac Can Ams (bar the 1977 Can Ams sold in California/High Altitude states which received the L80 Oldsmobile 403) and was optional in all 1977-79 Pontiac Firebird Formula and Trans Am models. Unfortunately, there were no improvements in the casting number "01" small-valve high-velocity heads, which would have yielded greater improvements in power. [citation needed]. A new engine was fast-tracked, its relatively late start allowing it to take advantage of developments proven in the Oldsmobile V8 and Cadillac V8. The two inline engines were used through 1954, when Pontiac unveiled its OHV Strato Streak V8 in 1955. The 2-barrel version was last offered in 1979. The V8 engine was introduced for the 1955 model year as the "Strato Streak". 421 CID V8 - 4BBL - Automatic - P.S. Regarding Crower's upgrade suggestions for its . Are you thinking of buying a 2007 muscle car, or any other car? A higher-output four-barrel carburetor version was offered, called the 326 HO (High Output). cam specs out at 215/225-degrees duration at 0.050 and has just 0.407/0.407 lift with the factory 1.50:1 rockers. As Pontiac's 1967 performance brochure said, "You can add the Ram Air induction hood scoop and new high output cam and valve springs to the Quadra-Power 400 for better top end breathing." Neither casting was equipped with an exhaust crossover. . Thus in March 1973 Pontiac eliminated a timing solenoid that gave full vacuum advance and disabled the EGR valve in high gear after a period of time that happened to exceed the running time of the EPA testing cycle. A panel covers the dash opening where the radio would have been on a standard Catalina. Next time we will cover the induction system and the dyno testing to see if Jim meets his goal. Windage tray: Original PMD '70 455, fabricate fit, no bosses at cap #2 1966 Pontiac Catalina 421 H.O. Gives New Meaning to the Term 'Full Floater' in., again available only in the GTO and Firebird. According to GM mandates horsepower was now rated in net figures as opposed to gross, so on paper the 1972 455 HO appeared to have a significant drop in power, but in fact it was very much the same engine, and performance figures reveal this to be true. The goal of making a Pontiac Hemi succeeded but the engine was never produced. 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. The very modest cam, combined with a low-compression ratio of 8.4 (advertised) and 7.9:1 actual resulted in 290hp (216kW) SAE NET. It was renamed 428 HO for 1968. Maximum RPM (high-RPM engine): over 8000 rpm, Engine weight: estimated 550lb (249kg) complete, Power: estimated 640hp (477kW) at 7500rpm, This page was last edited on 30 January 2023, at 13:15. 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 L75 455 engine continued as an option into the 1976 model year for the Trans Am, however, Pontiac opted to drop the "H.O." A History Lesson in Pontiac V8 Power - Engine Builder Magazine 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. gasoline (petrol) engine with displacement: 6902 cm3 / 421.2 cui, advertised power: 252 kW / 338 hp / 343 PS ( SAE gross . It was removed from the design for the 1960 model year because designers moved the generator and the power steering pump from atop the front of the engine down to the front of the heads to accommodate a lower hoodline. Two tri-power 421s were optional, one with 356 bhp, the other with 376. . The 421 SD produced up . Head ID Location Ever wonder what it would take to increase that number by 100? 1966 Pontiac Catalina technical specifications and data. It was implemented as further development of a cost-effective, more fuel efficient V8 derivative of the 301 V8 for the CAFE requirements. 1962 Pontiac Catalina, Royal Bobcat Super Duty 421. "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. The 1958 370" engine and the 195960 389 version was named the "Tempest" V-8 and changed in 61 to the "Trophy" V8. Pistons: Icon PN IC892 application 428 +0.030-in with 10cc dish Pontiac ignited the classic muscle car era with a stroke of marketing genius. . . These motors were built mainly for NASCAR or other racing purposes and were equipped with all the extra racing goodies that people were looking for. 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 VEHICLE TYPE . ENGINE TYPE Water-cooled V-8, cast iron block and head Displacement 428 in 3, 7015 cm 3 Power 390 hp @ 5200 rpm This money bought a potent 389 V-8 with 267-283 bhp . Stock Pontiac Head Specs * During my searching for information, I found quite a few discrepancies in the sources I was viewing. 1966 Pontiac GTO - Muscle Car Facts 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 . Jets, Primary: Center #64 adjust power valvespring for 12 Hg at 1,000 rpm All 196869 #9792506 Ram Air 400 blocks have 4-bolt caps. Engine Oil: 120 ft-lbs. Both Chevy and Ford had 427 cu in performance engines, so Pontiac simply referred to its 427 as a 428 to one-up them. Paul Stenquist. The heads were a new design featuring siamesed intake ports. [4] It was replaced by the 455 for the 1970 model year. By 1963 Pontiac decided it was time to release the 421 V8 officially to the general public and the motor would continue to be available until the end of the 1966 model year. Keepers: Comp Cams race locks For 1967 only Pontiac called this engine the Quadra-Power 428. SELLER Glendale, Arizona 85305. A mere five were built, all with a four-speed transmission. The stroke increased to 4.21-inch (106.9mm). ARP - The Official Site | Pontiac Kits In 1967, the Pontiac 2+2 became an option on the . 068) to 301/313 (No. Block description: '64 421ci #157 The main innovation of the Pontiac engine was reverse-flow cooling and the stamped rocker-arm system, which had been devised by Pontiac engineer Clayton Leach in 1948. Pontiac's SCCA Trans-Am program was promising, with race-ready engines producing 475hp (354kW) to 525hp (391kW), however the series General Competition Rules required the manufacturer to produce no less than 250 vehicles with the 303. The concept car Pontiac Strato-Streak was used to introduce the V8 and in later years the engine was installed in Pontiac products. aluminum V8 it had offered in the Tempest and replaced it with a small-bore version of the standard 389cuin (6.4L) Pontiac V8. Even more powerful were the 421 Super Duty V8s that could produce up to 410 horsepower. All Rights Reserved. These guys lived by mathematics since every function of an engine that converts chemical to mechanical energy can be assigned a number. Plans were made to produce Firebirds and GTOs with advertised ratings of 355hp (265kW) and 375hp (280kW) respectively but concerns about emissions, the response of the automobile safety lobby, and the warranty implications of a high-revving street engine led to cancellation of the program.[why? 421 Tri-Power/Hurst 4-Speed: 1966 Pontiac 2+2 | Barn Finds In 1961 and 1962 they were available with either one 4 barrel carburetor or a dual 4 barrel carburetor setup depending on whether the buyer wanted to head to the racetrack or drag strip. It used a declutching fan, special exhaust manifolds, and chrome low-restriction air cleaners; rocker covers and oil-filler cap also were chrome. The 1971 455 HO was available in the Firebird (optional in Formula; standard in Trans Am), the GTO (standard with "The Judge" package), and the 2-door LeMans, LeMans T-37 (including GT-37), and LeMans Sport. Pontiac produced the 421 V8 engine from 1961 to 1968. True Pontiac engines were designed and built in Detroitnot on a computer, but often by GI-bill-educated engineers who grew up working with their hands and now had a slide rule in their pocket instead of a greasy rag. Model Number: Body/Style Number: Body Type & Seating: Factory Price: . The 2+2 option package arrived for 1965, giving the Catalina a performance persona and credentials to match. Engine Specifications. Oil pump: . It had a four-barrel carburetor, dual exhaust, and higher compression, and was good for 280hp (209kW) for 19631964, and 285hp (213kW) for 1965 - 1966 and the final year, 1967. Engine Block Date Code. 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). It produced 120hp (89kW) After 1981, the Pontiac V8 was replaced entirely by the GM "corporate" V8's from Chevrolet and Oldsmobile. The 389 V8 was first introduced by Pontiac in 1959. From 1955 through 1959, the Pontiac V8 was also used in some GMC pick-up trucks. Wearing a revised GM B-body semi-fastback shape, the 2+2 option delivered a 421-cu.in. It added '421' engine badges on the front fenders, 2+2 insignia on the deck lid and rear fenders, and simulated louvers behind the front wheel cutouts. 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. HP = flow at 28 in/H2O x 0.257 x # of cylinders. For 1958 the V8's bore was increased again to 4+116in (103.2mm), increasing displacement to 369.4cuin (6.1L). Stock Pontiac Engine Specs - Ron's Pontiac Page HPP decided to follow this exciting exercise; we show you the highlights in this two-part primer. There was also the addition of dual exhaust, and for vehicles equipped with a manual transmission, a slightly more aggressive camshaft. In the early '60s, the engine program at the Pontiac division of General Motors was a wide-open operation that bustled with innovation. As a result, peak horsepower dropped from 310 to 290, though torque increased from 390 to 395lb. The Pontiac 2+2 was promoted as the "big brother" to the iconic Pontiac GTO. The Best Features Of The Pontiac 2+2 - HotCars Factory heavy-duty high-pressure oil pump and eight-quart sump, four-bolt main bearing caps with Moraine aluminum bearings, and #1110976 dual-point distributor without vacuum advance. For those who may not be familiar with the equation, here it is again: 1962 - 389 SD Code 544127. Muscle cars wouldn't have much muscle without horsepower -- but what exactly is horsepower? Stock Pontiac Head Specs - Ron's Pontiac Page designs, the SD-455 was a much improved engine. The SD-455 motor was listed as an option in dealer brochures for the 1973 Grand Am and LeMans GTO(and planned for the Grand Prix as well) although none were produced for sale. 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. Regarding Crower's upgrade suggestions for its camshaft, Jim pretty much has it covered. Nationwide Children's Hospital Child Life Internship, 2021 Dynasty Rookie Adp Superflex, Articles OTHER