There are no manual transmission equipped Trans Ams that came factory with the standard L78 400 motor in 1977-79. . This 1966 Pontiac 2+2 Convertible is a beautifully restored big-block convertible that is ready for some boulevard cruising! Pontiac ignited the classic muscle car era with a stroke of marketing genius. Engine Oil: 95 ft-lbs. Rocker studs: ARP special 34-in bottom The 421SD was available in 1961 as a dealer option or over the counter then in 62 and 63 from the factory, and was fitted with a list of internal modifications designed solely to withstand the abuse of drag racing. 455 (7.5) Buick Gran Sport, and 455 (7.5) Oldsmobile 442). For 1967 only Pontiac called this engine the Quadra-Power 428. However, the engine used in these Trans Ams was the same regular production 455 taken from the big body cars Pontiac was producing, and output 200 HP with a torque rating of 330lbft at 2,000 rpm.[13]. In addition to the more refined cylinder heads, block casting reinforcements in the lifter galley and main bearing oil pan rail area, it had forged connecting rods with larger 716-inch-diameter (11mm) bolts. We and our partners use cookies to Store and/or access information on a device. Even more powerful were the 421 Super Duty V8s that could produce up to 410 horsepower. [19], Parts for Ram Air V engines are not readily available. All W72 equipped Trans Ams featured the "T/A 6.6" shaker decal. Whether all were installed in GTOs is unknown. The Fresh Air package continued into the 1966 model year. The most valuable Pontiac GTO is the 1969 Judge convertible with the 370-hp Ram Air IV engine. It was implemented as further development of a cost-effective, more fuel efficient V8 derivative of the 301 V8 for the CAFE requirements. Royal Pontiac developed the prototype of the package on their 1965 GTO drag car and Pontiac picked up the idea and in August 1965 Pontiac offered the new Fresh Air package to dealers consisting of the parts and instructions needed to make the hood scoop functional, including the metal tub to mount to the carburetors and rubber gasket to seal it to the underside of the hood. 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. In 1969, Pontiac also used a revised crankshaft out of a Pearlitic malleable-iron, although it still used the "N" casting letter. The last "true" Pontiac V8s, a 265 and 301cuin (4.3 and 4.9L), ended production in early 1981. 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). Here is another number to ponder: 370 hp. 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. Late in the model year the Ram Air 455 HO was made an available option for those GTOs with the optional "The Judge" package. The W72 301 was a tuned L37 301 Pontiac V8 with some minor upgrades. 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. 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? Ram Air induction was optionally available with the 455 HO in the Firebird Formula (standard on Trans Am), and the 2-door LeMans (including GTO). Oil pan: 8-quart with extended pick-up, fabricated retention clamp in. 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." The Block Date Code represents the production date of the engine. The 428 was increased to 456.12cuin (7,474cc) in 1970. A big chunk of the appeal of the 1965 and '66 2+2 was the fact that you got a standard 421 under the hood: The 338hp, four-barrel 421-cu.in. As a result, it was remarkably free of teething problems. Piston-to-deck height: 0.009-in The 1963 Catalina two-door sports sedan pictured here showcases the 421 H.O. When fitted with other high-airflow components, it produced a good balance of low-end torque and higher-RPM power. Valves: Competition Products stainless steel, 1.92 /1.66-in Crank: Original '64 421 Pontiac V8 Engine Codes and Specifications. A set of Hooker Super Comp headers will be used on the dyno, and Jim is porting the stock heads to increase intake-port flow by 30 cfm. The short-deck block and different intake ports also required the design of a new intake manifold. The four-barrel version, set up for sustained high speeds, had 390 hp. 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. [4] It was replaced by the 455 for the 1970 model year. Mods: Built to factory specifications/ adapt '64 choke to '66 center carburetor Pontiac continued to manufacture its own engines, distinct from Buick, Cadillac, Chevrolet, or Oldsmobile, until 1981. Where else will the extra 100 horses come from? For the truly obsessed, 16 Grand Prixs were built with Pontiac's 421 Super Duty engines, rated at a staggering 370 bhp. This was the beginning of factory supplied performance items such as 4 bolt main bearings and windage trays to reduce friction from crankcase oil. Year: CU IN: Casting # 1967: 326. It was called the Ram Air IV due to the planned use of four air inlets. 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. Jets, Primary: Center #64 adjust power valvespring for 12 Hg at 1,000 rpm 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. Installed position: 110-deg 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. Engine Specifications. Federal emissions standards and the drive towards "corporate" engines shared among all GM divisions led to the progressive demise of the Pontiac V8 through the late 1970s. 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. To learn about it, read. [2] This was the engine installed in the Pontiac Executive line of large cars[3] and its largest station wagon, the Pontiac Safari. Pontiac first offered the 2+2 as a Catalina engine, suspension, and trim group in 1964. Stating in 1962 the "421" and the "421 SD" engine became available as a factory option until 1966. The engine came with 543797 (4-barrel) and 9770716 heads for the tri-power and special exhaust manifolds and a 7H cam with 292deg. Paul Stenquist. 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. engine, dual exhausts, three-speed manual transmission, Hurst shifter, 3.42:1 rear gears, heavy-duty suspension, bucket seats, upgraded upholstery, carpet, emblems, "Decor" louvers, pinstripes, lower . It featured the "744" 301/313 camshaft, which offered more duration and overlap than the "HO". In addition, a shallower spherical-wedge combustion chamber moved the tuliped valve heads .040" closer to the piston at TDC, improving mixture draw considerably during the intake stroke. V-8 (coded WG for stick or YH for auto) was the 2+2's base engine. An example of data being processed may be a unique identifier stored in a cookie. By comparison, the factory 421 H.O. Both engines received the McKellar number-10 camshaft, which was much like a solid-lifter version of the hydraulic number-041 of later years. 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. They acquired the featured Montero Red 1966 Pontiac Catalina post car, which was equipped from the factory with the 421 H.O. Length: 8.750-inCAM It included a new camshaft with duration increased from 288/302 (No. 5 January 2007. Power ratings increased accordingly: Several dealer-installed camshafts were optional to increase power further to 317hp (236kW). 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). 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. 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 400 2-barrel kept the 17 degree valve angles for '67; starting in '68 all Pontiac V8s went to the 14 degree valve angle. Setting initial timing at idle with the vacuum advance disconnected will usually fall around 12 to 16 degrees, but that's not really important. 1966 Pontiac Catalina Specifications and Production. Along with a cam swap it boosted horsepower from 325 hp with the four-barrel carb to 348 hp in '64. [5] It was rated at 360hp (268kW), but the Grand Prix with the same specifications was rated at 370hp (276kW).[6]. Initial advance: 18-deg HPP decided to follow this exciting exercise; we show you the highlights in this two-part primer. Rod bolts or studs/head bolts or studs: ARP cap screw supplied in Howard's rods / PMDOILING SYSTEM Along with proper parts selection, accurate machining and assembly are also important. of torque at 3,800 RPM in the GTO, and 340 HORSEPOWER at 5,300 RPM and 430-lb.ft. Surprisingly, Mopar actually agreed and sent over several of the engineers that designed both the 392 and 426 Hemi. 1966: 421: 9782611 (late) 1967-1969. Splayed main caps, head bolts tie into main caps. The 1970 '455 HO' was a conventional "D" port engine. Learn how Classified Ads works . Lobe separation angle: 112-deg Free local pickup. It's well documented that an internal combustion engine is nothing more than an air pump. Pontiac V8 Engine Tune Up Specifications. . The W72 was only available for a very short time, with the majority of 1979 model year W72 Firebirds ordered in late 1978. 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. 1963 Pontiac V8 Engine Specs. for 1980, and the 8th being a "T" for 1981). A mere five were built, all with a four-speed transmission. Pontiac first offered three two-barrel carburetors in 1957 and the Tri-power set up was an option on the GTO from 1964-66. 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. The GTO's new hood scoop design, with the inlets centrally located and mounted above the carburetor, provided the opportunity for experimentation. The valve angle was reduced from 17 degrees to 14 degrees for better breathing. In addition to the inline 6, Pontiac used the Oakland V8 for one year, 1932, debuting the Pontiac straight-8 engine in 1933. The 389 was the standard engine for the Pontiac Grand Prix and Pontiac Bonneville and installed in the Pontiac GTO through 1966. street engine. Along with the HO it also had Pontiac's famous cast-iron "headers", which were much better at reducing backpressure than the regular manifolds. With the 1964-1967 Pontiac Catalina 2+2, Pontiac achieved a combination of power, road-holding, and fine styling superior to any other big Pontiac, and most of the competition's models besides. In basic 2-barrel form it produced 290 horsepower and 428ft. pounds of torque in 1968. The 421 badging was standard on the 2+2, the 421 H.O. By 1963, the more powerful Pontiac 421 was beginning to outshine the 389 for performance applications. Lift: 0.515/0.525 with 1.6:1 rockers Unusual for a major automaker, Pontiac did not have the customary "small-block" and "big-block" engine families common to other GM divisions, Ford, and Chrysler. 1966 Pontiac Complete 389 Engine YC code 290 HP Block Catalina . 301 Turbo (210hp, 157kW), (with the 5th VIN character being a "T". Melling PN M54D with 60 psi spring, made 70 psi at 6,000 rpm with 30W oil Other dimensional factors such as the wheel base, curb weight and length were largely unchanged. The Pontiac 389 engine was produced from 1959 to 1966, and has a 4.06" bore and 3.75" stroke. This included the ESC (Electronic Spark Control) distributor and controller borrowed from the 301 Turbo, which allowed for higher timing without the penalty of engine damaging pinging or preignition. Chamber: Closed, special to PMD, 70 cc Known as GM's performance-oriented division, Pontiac lived up to the hype by creating the first Muscle Car and kicking off the Muscle Car era. It was rated at 310hp (231kW) @ 4800rpm and 400lbft (542Nm) @ 3,000rpm on 10.5:1 compression. Are you thinking of buying a 2007 muscle car, or any other car? On this Wikipedia the language links are at the top of the page across from the article title. 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 engine production records report that 190 XS-code 389 engines were built during the 1966 model year. 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. 1966 Pontiac GTO. It shared the 389's 3+34in (95.3mm) stroke, but its bore was 3.78in (96.0mm) for a displacement of 336.66cuin (5.5L). Ever wonder what it would take to increase that number by 100? This had extra-rich "DX" secondary metering rods and a remote vacuum source for the primary metering rod enrichment circuit to allow the Power Enrichment Vacuum Regulator (PEVR) to release the primary metering rods to move to the up position (enrichment) anytime during boosted conditions. Head mods: Port, cook, magnaflux, glass bead, convert to screw-in studs The Ram Air IV replaced the Ram Air II in 1969. A panel covers the dash opening where the radio would have been on a standard Catalina. 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 . Pontiac introduced the OHC 6 in two flavors for '66: a base engine with a one-barrel carburetor that developed 165 hp at 4700 rpm, and a sportier version with a 10.5:1 compression ratio, a high-lift cam, a split exhaust manifold, and GM's new four-barrel Quadrajet carburetor (below). Boost was wastegate limited to 91psi (0.6210.069bar). Seat pressure: 110 pounds at 1.600-in It requires a compression ratio of at least 10.25:1. The "670" head was a 1967-only casting, and the only PMD head to have a closed chamber with the new 14 degree valve angle. This new material had stronger alloys in the iron. Fuel line size: 38-inch, 516-inch to carburetor Effectively, Pontiac's V8s were all small blocks, sharing the same connecting rod length 6.625 in (168.3mm) (except for the later short deck 301 and 265 produced in the late 1970s and early 1980s before Pontiac adopted universal GM engines). 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). 1975 Factory Service Manual lists the SD-455, but the SD-455 did not meet emissions for the 1975 model year and was canceled. gasoline (petrol) engine with displacement: 6902 cm3 / 421.2 cui, advertised power: 252 kW / 338 hp / 343 PS . Sponsored Stories . High output Pontiac V8 Cylinder Heads. The last was the 421 HO and included a high-output camshaft and valve train. 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. Primary tube length: approximately 31.00 inches When Robert Critchfield took over as general manager in 1952, he launched an ambitious plan to move Pontiac into the upscale, mid-range market occupied by Oldsmobile, and that demanded V8 power. This was a completely stock car on loan from a private owner for the test. This is it! Casting number: 97770716, '64 date Ellingson Motorcars (877) 638-7170. It is a known fact that a person's pupils dilate slightly when viewing something pleasant to the eyes. Mods: Intake port match, valve bowl blend, improved short-turn radius While the 400 offered excellent power in the GTO (360 horses and 445 lb-ft of torque in 1968), Pontiac turned to what it called 'big journal' engines for the muscle machine's next upgrade. - P.Top - Correct Exterior/Interior. 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. 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. The 421 SD Tri . This camshaft sported a 308-/320-degree duration with 0.47-inch (12mm) lift. 744) and a new valve spring package with dampers to positively control valve action. 1962 Pontiac Catalina, Royal Bobcat Super Duty 421. 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.
Nse: Failed To Initialize The Script Engine Nmap,
Hartford Courant Obituaries New Britain, Ct,
When Do Soccer Aid 2022 Tickets Go On Sale,
Articles OTHER
