Pontiac ignited the classic muscle car era with a stroke of marketing genius. 1966 Pontiac Catalina - conceptcarz.com 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. Both used a single two-barrel carburetor. It retained the 421's 4in (101.6mm) stroke and 3+14in (82.6mm) main journal. . . Keepers: Comp Cams race locks Pontiac V8 Cylinder Heads - Casting numbers and Specs - WOW Muscle Cars By 1963, the more powerful Pontiac 421 was beginning to outshine the 389 for performance applications. Pontiac offered Tri-Power on select models and engines (347, 370, 389, and 421 CID) from 1957 through 1966, when it was finally . Some of our partners may process your data as a part of their legitimate business interest without asking for consent. Often called the "Ram Air III", this engine was officially called the "400 Ram Air" for 1969 and then simply "Ram Air" for the 1970 model year. Both of these engines were originally dealer-installed options, but since the NHRA moved to limit racing eligibility to factory-available options on cars available to the public, Pontiac made the SD 421 a factory option for 1962, and most of the approximately 164 SD 421 engines were installed in the Catalina, with another 16 being installed in . The Ram Air IV heads had 1/8" taller intake ports, larger intake port volume with more airflow, yet shared the Ram Air II round exhaust ports. This is the original car featured in the May 1962 issue of Motor Trend Magazine that was modified by Royal Pontiac and driven by Jim Wangers. 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. 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. Pontiac V8 Engine Codes and Specs - WOW Muscle Cars 1966 Pontiac 2+2 for sale near Rogers, Minnesota 55374 - Classics on One of the key upgrades were the 6x4 heads. 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). The 421.19cuin (6.9L) was introduced in 1961 as a dealer-installed Super Duty option. moniker from the shaker due to the disappointing public approval as the motor was not deemed to be "High Output". To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. The 421 used the same 4.120-inch bore but used the 4.0-inch crank from the 421 it replaced. 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. The standard head seen on an L78 400 Pontiac was the low compression 6x8 head, while the 6x4 head seen on the W72 had hardened valve seats for a higher RPM operating range, improved air flow, and higher compression. Intake: 218 cfm at 0.500-in Muscle cars wouldn't have much muscle without horsepower -- but what exactly is horsepower? However, compression ratios were cut dramatically, marking the beginning of the end of the muscle car era. Apparently at least one of these engines survives under the hood of an engineer's personal Pontiac. Length: 8.750-inCAM Optional was the obligatory four-speed manual or new-for-1965 Turbo-Hyramatic three-speed automatic. For 1965, however, the 2+2 became a bonafide muscle car. . Projects - 1964 PONTIAC 421 HO Engine Build | The H.A.M.B. Flamboyantly styled and expansively proportioned, the 2+2 was unbeatable for sheer presence. 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. Mods: Flow-test indicated '66 center carburetor would be required to improve total cfm, adapter made to fit '66 center carburetorIGNITION Nevertheless, there appears in the October 72 issue of MOTOR TREND, a road test of a 1973 SD-455 Grand Am. 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. Though a change of camshaft would delay production, Pontiac decided to change camshaft, employing one with identical timing to the 744 camshaft, which had been used in the 400 Ram Air(aka Ram Air III) engine with manual transmissions. Furthermore, this car had an automatic, air conditioning, a 3.08 axle and weighed 4,010 pounds (1,819kg). It is a known fact that a person's pupils dilate slightly when viewing something pleasant to the eyes. Both Randy and Stan were aware of the . "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. All 1977-1978 Trans Ams ordered with the 4-speed Borg Warner Super T-10 manual transmission received the W72 T/A 6.6 engine. All L78 Pontiac 400 equipped cars received the same shaker decal as the L80 Oldsmobile 403, being "6.6 LITRE". The 421 SD became factory installed in 1962 and in 1963 a street version became available from the factory with a dual four-barrel or three two-barrel Tri-Power carburetion. Are you thinking of buying a 2007 muscle car, or any other car? 1965 Pontiac Grand Prix with a 421 Tri-Power engine - YouTube 3.75. Pontiac listed the 290hp (216kW) rating at 4000 rpm for a motor that had a 5700rpm redline on the factory tachometer. The 301.6cuin (4.9L) 301 was offered from 1977 to 1981 and also installed in other GM cars during those years. 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. Preparation: Magnaflux, check for equal stroke and index, grind, polish 0.010-in Balancer: Original PMD rebuilt by Damper Doctor Well, gaze upon these numbersa 421ci Pontiac with Tri-Power carburetion. This camshaft sported a 308-/320-degree duration with 0.47-inch (12mm) lift. For the 1967 GTO the engine was rated at 360bhp (268kW; 365PS) and had the cast-iron headers. Offered from 1967 to 1969, it produced 360 and 376hp (268 and 280kW) in 1967, 375 and 390hp (280 and 291kW) in 1968 and 360,370 and 390hp (268,276 and 291kW) in 1969. 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 . Engine displacement is a function of bore and stroke. Contemporary road tests suggest that it was actually somewhat inferior to the Tri-Power engines, although it did have better fuel economy. The Pontiac 389 engine was produced from 1959 to 1966, and has a 4.06" bore and 3.75" stroke. Final torque ratings may vary and need to be determined based on application and parts used. 1966 Pontiac GTO - Muscle Car Facts 1966 Pontiac Catalina 2-Door Sedan full range specs - Automobile-Catalog He thinks the stock exhaust flow of 180 cfm will suffice for this build. Under the leadership of chief engineers Pete Estes and John DeLorean, Pontiac engine guru Malcolm "Mac" McKellar (1920-2011) and crew developed the Super Duty 389 and 421 NASCAR engines that embarrassed the Fords and Chevrolets at Daytona. 1962 421 super duty motor Price $30000.00. More 400cuin (6.6L) engines were produced by Pontiac than the other versions - estimates range from 80 to 200 units. It's well documented that an internal combustion engine is nothing more than an air pump. Though production cars only got the two hood air inlets the name was retained. It was the top-of-the-line engine unless one opted for the "Ram Air" V-8 derived from it. Brand: Crower PN 60311, solid Crank: Original '64 421 The Ram Air IV also used a lightweight aluminum intake-manifold that produced a weight savings of 1015lb (4.56.8kg). Pontiac . #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 301 had a bore and stroke of 4in 3in (101.6mm 76.2mm). This 1966 Pontiac 2+2 Convertible is a beautifully restored big-block convertible that is ready for some boulevard cruising! Chamber: Closed, special to PMD, 70 cc The 455 HO moniker was again carried over, this time as a near-exact repeat of the 1971 offering, the only changes were the carburetors (they used a conventional 750cuft/min (21m3/min) unit this year), and the head castings (casting #7F6). 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). ][citation needed] T, While the exact total number of Ram Air V engines produced is not positively known, only about 25 303cuin (5.0L) engines were produced and about a dozen 428s and 366s. The 421 SD produced up . Optional engines included the 356hp Tri-Power as seen on our feature car (code WH manual or YJ auto), or the 421HO, rated at 376hp . The 389 was the standard engine for the Pontiac Grand Prix and Pontiac Bonneville and installed in the Pontiac GTO through 1966. The Pontiac 2+2 featured a 6.9 L V8 engine, heavy-duty front springs, dual exhaust and distinctive exterior body design. An evolution of the RA IV and H.O. So large are the intake ports that the pushrods run through the center of each port via pressed-in tubes, in addition to streamlined airfoils over the tubes themselves to improve port shape, and increase flow velocity. NASCAR race cars embody the muscle car philosophy of power. All 196869 #9792506 Ram Air 400 blocks have 4-bolt caps. In 1967, the Pontiac 2+2 became an option on the . Pontiac 421 V8 Specs, Firing Order and Engine Information - Engine Facts Read. Preparation: Cook, bead blast, magnaflux, bore, true decks, align bore It was rated at 310hp (231kW) @ 4800rpm and 400lbft (542Nm) @ 3,000rpm on 10.5:1 compression. Wearing a revised GM B-body semi-fastback shape, the 2+2 option delivered a 421-cu.in. Pontiac V8 Engine Codes and Specifications. [citation needed]. This was based on results of over 1 million test miles, which was unheard of at the time. Price $14000.00. Head ID Location They acquired the featured Montero Red 1966 Pontiac Catalina post car, which was equipped from the factory with the 421 H.O. 1966 Pontiac Catalina - Oldride Late in the model year the Ram Air 455 HO was made an available option for those GTOs with the optional "The Judge" package. Simply called "Ram Air" by Pontiac[17] it was the first in a series of engines available from Pontiac as regular production line options and officially called Ram Air. It featured the "744" 301/313 camshaft, which offered more duration and overlap than the "HO". The 421 SD Tri . All W72 equipped Trans Ams featured the "T/A 6.6" shaker decal. The GTO's new hood scoop design, with the inlets centrally located and mounted above the carburetor, provided the opportunity for experimentation. The engines feature a cast-iron block and head and two valves per cylinder. Installed position: 110-deg It also sports the four-speed manual, limited . for 1980, and the 8th being a "T" for 1981). 1975 Factory Service Manual lists the SD-455, but the SD-455 did not meet emissions for the 1975 model year and was canceled. 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. . 1962 Pontiac Catalina 421 Super Duty Royal Bobcat - Collector Car Ads in., again available only in the GTO and Firebird. Now select an engine model (if applicable) -- Pontiac Engine Models -- All Pontiac Kits 151 301 326 350 3800 389 4-cylinder 400 421 428 455 Brodix Heads Edelbrock Heads Iron Duke L67 Pro Stock Dart Heads Pro Stock Heads Ram Air Runner Heads Super Duty Generic V8. Compression ratio was a modest 8.00:1, with valve diameters of 1.781in (45.2mm) (intake) and 1+12in (38mm) (exhaust). Pontiac Engine Torque Specs - Butler Performance Year. Hewing to GM's standing edict limiting engine size to 400 cu in for its midsize and smaller cars, the 360hp (268kW) (underrated),[citation needed] the 400 cubic inch Ram Air V-8 was the most powerful and advanced option available in the 1967 GTO and Firebird. Regarding Crower's upgrade suggestions for its camshaft, Jim pretty much has it covered. ARP - The Official Site | Pontiac Kits 1966 yk 421 376 a 3x2 1967 zg 230 165 a 1 1967 zm 230 165 a 1 1967 zk 230 165 3 m 1 1967 zs 230 165 3 m 1 . I don't know if it can be done, but I'm going to try." Modified versions of this engine were extensively used in NASCAR stock car racing and drag racing competition. of torque at 3,800 RPM in the GTO, and 340 HORSEPOWER at 5,300 RPM and 430-lb.ft. Other dimensional factors such as the wheel base, curb weight and length were largely unchanged. 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. Windage tray: Original PMD '70 455, fabricate fit, no bosses at cap #2 Pontiac first offered three two-barrel carburetors in 1957 and the Tri-power set up was an option on the GTO from 1964-66. Dual Carter Carburetor 500cuft/min (14m3/min) #3433S (front) and #3435S (rear) carburetors with manual chokes and mechanical linkage. in. In the 1968 Pontiac GTO it was given a 10.75:1 compression ratio and tuned to deliver 360 horsepower and 445 foot-pounds of torque.[2]. Pontiac still offered the regular 455 (RPO L75) in its full sized cars, and after a negative public reaction for dropping the 455 engine, it was re-introduced mid-year as an available option for the 1975 Pontiac Trans Am. Crower identifies this cam as a Level 4, which means it provides strong midrange and top-end power for heavily modified engines. Pontiac first offered the 2+2 as a Catalina engine, suspension, and trim group in 1964. . 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. Muscle Cars. The rod weighs 751 grams versus the stock rod at 958 grams. 1966 Pontiac Catalina . It included a new camshaft with duration increased from 288/302 (No. As Pontiac still wanted to offer a performance motor to compete in the performance market, they looked back to the 400 Pontiac and how it could be improved to offer greater performance while meeting CAFE standards. In 1967, the cylinder head design was improved for the 400 4-barrel engine. But the "Ram Air" 400 also mandated steep 4.33:1 gears(or 3.90:1 in Firebird), making the Quadra-Power 400 (400 HO) the top practical street engine option for most drivers. On premium fuel, it was rated at 207 hp at 5200 rpm and . The valve size increased as well, to 2.11in (53.6mm) intake and 1.77in (45.0mm) exhaust valves on high-performance heads. 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. 1962 - 389 SD Code 544127. Beginning in 1961 the Pontiac V-8 (389 and 421) was dubbed the Trophy V-8, due to its many victories in racing. Two-barrel carburetor, 8.5:1 compression, 227hp (169kW) @ 4600rpm, 333lbft (451Nm) @ 2300rpm, Four-barrel carburetor, 10:1 compression, 244hp (182kW) @ 4800rpm, 350lbft (475Nm) @ 2600rpm, Two-barrel carburetor, 10.0:1 compression, 244hp (182kW) @ 4800rpm, 350lbft (475Nm) @ 2600rpm, Four-barrel carburetor, 10.25:1 compression, 270hp (201kW) @ 4800rpm, 359lbft (487Nm) @ 2900rpm. See Consumer Guide Automotive's New-Car Reviews, Prices, and Information. 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. This installment includes the assembly and parts selection up to the long-block. 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." To determine horsepower from airflow, invert the equation: . Pontiac first offered the 2+2 as a Catalina engine, suspension, and trim group in 1964. First offered as an option in 1963, the 421 HO came in a 4-barrel engine of 320hp (239kW) and one Tri-Power H-O version with a hotter cam and efficient iron exhaust manifolds and rated at 370hp (276kW). Besides a variety of displacements, the Pontiac V-8 block saw a number of other changes over the years, including starter locations, main-journal diameters, engine-mounting points, and . This money bought a potent 389 V-8 with 267-283 bhp . 1967 was the last year for closed-chambered heads. Pontiac in the 1950s was one of a few US manufacturers that did not regularly identify their engine names and sizes with air-cleaner or valve-cover decals. [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. Size cfm: Total flow, 1,050 cfm Again, its bore was expanded, this time 0.03in (0.76mm) to 4.1525in (105.47mm). Block casting # 9773157. 400 Ram Air (1969) / Ram Air (1970), aka Ram Air III, Learn how and when to remove these template messages, Learn how and when to remove this template message, "Tested: 1968 Pontiac GTO 428 / Royal Bobcat", "1969 Pontiac Grand Prix 428 specifications | technical data | performance | fuel economy | emissions | dimensions | horsepower | torque | weight", "Muscle Car Horsepower How Exaggerated Was It? The manuals had Hurst shifters. The 1968 Ram Air II remained at 400 cu. 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]. For those who may not be familiar with the equation, here it is again: SELLER Glendale, Arizona 85305. Both engines received the McKellar number-10 camshaft, which was much like a solid-lifter version of the hydraulic number-041 of later years. Cougar pulled out of Mustang's shadow with the striped and spoilered 1969 Mercury Cougar Eliminator. 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. Bolts or Parts: Lube or Sealer: Torque to: Main Caps. In addition to the inline 6, Pontiac used the Oakland V8 for one year, 1932, debuting the Pontiac straight-8 engine in 1933. [19], Parts for Ram Air V engines are not readily available. In 1967 the 421 was enlarged to 426.61cuin (7.0L) by increasing its bore to 4.12in (104.6mm). This may have been propagated by the only authorized company that is licensed to reproduce these decals not including the "6.6 LITRE" in the Trans Am decal kits, and only including "T/A 6.6" with no extra cost. Pontiac Heads; Pontiac Engine Torque Specs; Pontiac Cars (Body Types) Pontiac Engine Information; Instruction Sheets; Compression Calculator; Ask a Tech Question; Customer Service. Required airflow at 28 in/H2O = HP/ # of cylinders/0.257 It was rated at 250hp (186kW) with 8.6:1 compression and 260hp (194kW) at 10.25:1 compression. 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. [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. The basic package included the heavy-duty suspension, with even stiffer springs and shocks available. Standard motor was the 421 4 barrel with 342 horsepower, which was no slouch itself. The 455 was used through 1976 when it, as with many other large displacement engines, was discontinued as manufacturers moved to smaller, more efficient models, even in their full size car lines.
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