Buckets and a console were added to the top-line Catalina interior, which could be optioned with a sport steering wheel and instrumentation that included a tachometer and oil-pressure gauge. Other dimensional factors such as the wheel base, curb weight and length were largely unchanged. / 8.3 mpg (U.S.) / 3.6 km/l, more data: 1966 Pontiac Catalina 2 . I don't know if it can be done, but I'm going to try." Wearing a revised GM B-body semi-fastback shape, the 2+2 option delivered a 421-cu.in. 1968 - 400 Ram Air I and 428HO Code 37" Ram Air I and. 1967 was the last year for closed-chambered heads. Installed position: 110-deg The results showed Pontiac that an L-head simply couldn't compete with an overhead valve engine. This camshaft sported a 308-/320-degree duration with 0.47-inch (12mm) lift. By 1963, the more powerful Pontiac 421 was beginning to outshine the 389 for performance applications. 1965 Pontiac LeMans GTO Mecum. The first letter equals the month. From 1969 though 1970, the Ram Air IV was available in both A-Body (GTO, including Judge) and F-body (Firebird, including Trans Am) form. Though production cars only got the two hood air inlets the name was retained. Based in part on designs for the "short deck" 303cuin (5.0L) engine designed for the 1970 racing season, it had a shorter deck than the big V8, and used thin-wall castings to reduce weight. Also added was the #48 casting number heads with a 68cc (4.15cuin) chamber for higher compression, along with larger 2.11 and 1.77in (54 and 45mm) valves. Displacement (CID) Bore (Inches) Stroke (Inches) Mains (Inches) 1955. Timing chain: LPC, double rollerINDUCTION Price $30000.00. Transistorized ignition was available. These guys lived by mathematics since every function of an engine that converts chemical to mechanical energy can be assigned a number. Only about 2000 like this one were built with 4 speed Muncie transmissions. Lift: 0.515/0.525 with 1.6:1 rockers Preparation: Magnaflux, check for equal stroke and index, grind, polish 0.010-in . [7] Though listed as slightly less powerful than some high-performance iterations of the 400 (such as the 366hp (273kW) Ram-Air), the 455 had 500lbft (678Nm) of torque, 55 more lbft (75Nm). 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). From 1959 to 1966 Pontiac continues making improvements. PONTIAC : 1965-75Tune-up Specifications : Year: Engine Car Model: Spark Plug Type (AC) - Gap: Point Gap: Dwell Angle: . for 1980, and the 8th being a "T" for 1981). Regarding Crower's upgrade suggestions for its . The 400 HO was offered as an option for 1967-1970 for GTO and 1968-1970 for Firebird. Styling for Status. Setting initial timing at idle with the vacuum advance disconnected will usually fall around 12 to 16 degrees, but that's not really important. Some 400s were dealer installed. 1963 Pontiac V8 Engine Specs. The 455 HO package was only available to late model year Pontiac Firebird Trans Am's, and was mandatory with a 4-speed transmission. 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 . The SD-455 used round-port cylinder heads similar to those used on the 1971 and 1972 455 HO, with specific "LS-2" intake and cast-iron exhaust header manifolds. They acquired the featured Montero Red 1966 Pontiac Catalina post car, which was equipped from the factory with the 421 H.O. 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. The four-barrel 400 was a popular performance option for many of Pontiac's cars. Located at the back of the engine near the Distributor. The 301 Turbo package mandated air conditioning, the THM350 (sometimes referred to as the CBC350 in various literature) non-lockup automatic transmission (THM350C lockup in 1981 Trans Ams), and 3.08 rear axle gearing. Both Chevy and Ford had 427 cu in performance engines, so Pontiac simply referred to its 427 as a 428 to one-up them. or choose Generic to see kits that might fit a . It was renamed 428 HO for 1968. In addition to the inline 6, Pontiac used the Oakland V8 for one year, 1932, debuting the Pontiac straight-8 engine in 1933. Beginning in 1967 casting numbers moved to the rear of the block just behind cylinder #8. 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). 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. Like previous generations of Ram Airs, it used Pontiac's special cast-iron "headers". Valves: Competition Products stainless steel, 1.92 /1.66-in The 1975 455 HO package received some negative press/reviews as some buyers expected to see a return of the 1971-1972 engine, and were disappointed when they received the lower output motor. 744) and a new valve spring package with dampers to positively control valve action. This S/D retains the original "Traction Master" traction bars and two-bar spinners on the original 8 . Shipping to: 98837. Rods: Howard's billet 4340 certified steel, stock 6.625-in, floating pins Perhaps the most unusual variation of the Pontiac V8 was the 1961-63 Trophy 4, which was a 45-degree inclined 194.43cuin (3.2L) inline-4 created from the right bank of the 389 for the debut of the Tempest. Though airflow is paramount in making power, there are other aspects of the engine that are just as important. and so the 326 bore size was reduced to 3.72in (94.5mm), giving a true 326.06cuin (5.3L). 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. Math, not gasoline, makes horsepower under the hood of a Pontiac. The new-for-1965 "Venturi" body shape and curved side glass were carried over with updates front and rear. The camshaft was also revised to have a slightly higher duration, the carburettor jets tuned and a dual exhaust was implemented allowing the power to increase to 220hp (223PS; 164kW) at 4000 rpm and 320lbft (434Nm) of torque at 2800 rpm. 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. Standard only for the Pontiac Bonneville was Pontiac's first-ever fuel injection system. Crank: Original '64 421 Thus, the quest to find 100 hp in a 421 started on the flow bench, before a wrench or machine tool touched any part of the 49-year-old engine. Pontiac Heads; Pontiac Engine Torque Specs; Pontiac Cars (Body Types) Pontiac Engine Information; Instruction Sheets; Compression Calculator; Ask a Tech Question; Customer Service. The piston weighs 630 grams with the pin versus the stock piston and pin weight of 790 grams. Boost was wastegate limited to 91psi (0.6210.069bar). Where else will the extra 100 horses come from? The 421 SD Tri . Valve seals: U.S. Seal Engine Oil: 95 ft-lbs. [19] The cylinder head design is similar to the Ford FE tunnel-port head used in the GT40 and Can-Am series racing. 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. 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. of torque at 3,800 RPM in the GTO, and 340 HORSEPOWER at 5,300 RPM and 430-lb.ft. HOT ROD and CAR AND DRIVER) were fitted with the Ram Air IV-spec camshaft and functional hood scoops - a fact that has been confirmed by several Pontiac sources. Optional power was the 421/356 with Tri-Power or the 421 HO putting out 376 horses with Tri-Power. The most famous S/D of them all. Today, they have an average value of $430,000 in #3 (Good) condition, while the best in the world is worth about $550,000. The main upgrade for the engine was the ESC, (Electronic Spark Control)[15] which provided slightly more power at 170hp (127kW) with 4.9L (299cuin) for the 19801981 model years. "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. Rocker studs: ARP special 34-in bottom Get the best deals on Engines & Engine Parts for 1966 Pontiac GTO when you shop the largest online selection at eBay.com. Secondary: Front and rear #70 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). And it cruised silently and rode with less harshness than muscle intermediates. Engine Displacement: 432 ci The consent submitted will only be used for data processing originating from this website. moniker from the shaker due to the disappointing public approval as the motor was not deemed to be "High Output". Two different cylinder-head castings were used for the 1962 model year, both with a combustion chamber volume of 68cc (4.15cuin) to produce an 11.0:1 compression ratio. As a result, peak horsepower dropped from 310 to 290, though torque increased from 390 to 395lb. 1975 Factory Service Manual lists the SD-455, but the SD-455 did not meet emissions for the 1975 model year and was canceled. 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). Standard ratio with the 400 was 3.55:1(except 3.36:1 in Firebird for 1969) regardless of transmission(3.23:1 for cars with air conditioning). The 1972 455 HO was rated at 300hp (224kW) @ 4,000rpm and 415lbft (563Nm) @ 3,200rpm. 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. The overhead-cam six-cylinder engine was new for 1966 and the standard engine in the Tempest and Tempest Custom. The Ram Air II also incorporated the first computer-designed camshaft. Price $15500.00. 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). Lifters: Crower solid with EDM oil hole (0.024 inch) Made with a provision for dry sump oiling, it truly was a racing engine, detuned for use in passenger cars. The rod weighs 751 grams versus the stock rod at 958 grams. Pontiac Engine Torque Specs Pontiac Engine Torque Specs. In 1969 the 350 HO was upgraded again with the addition of the 400 HO cam, commonly referred to by enthusiasts as the 068 cam. It was rated at 376bhp in 1967 and 390bhp in 1968 and 1969. This resulted in a lightweight design weighing less than the Chevrolet small-block V-8. The most valuable Pontiac GTO is the 1969 Judge convertible with the 370-hp Ram Air IV engine. 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. This was underrated at 330hp (246kW). Splayed main caps, head bolts tie into main caps. Beginning in 1961 the Pontiac V-8 (389 and 421) was dubbed the Trophy V-8, due to its many victories in racing. Apparently at least one of these engines survives under the hood of an engineer's personal Pontiac. The 1966 Pontiac GTO was also the first car to replace the aluminum grille with plastic mesh-pattern inserts. In 1961 Pontiac continued to push the horsepower upwards with the release of the 421 engine. It was called the Ram Air IV due to the planned use of four air inlets. Laconic would be one way to describe this Pontiac's eBay listing, all it states is, "1966 Pontiac Ventura, 421 Tri-Power, 4 speed Runs/ Drives Great, Very Clean - Garage Kept".OK then, now you know what I know. The 1981 rendition of this engine was officially called the 301-EC [EC standing for Electronic Controls] in the 1981 GM factory service manual, removing the need for a W72 option separately as it was now the standard motor, similar to how all W72 engines in 1979 were coded L78.[16]. The engine was dubbed the TEMPEST V-8, a nickname it retained until the end of 1960. . 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. #9770716 aka "716" heads featured a 170cc intake port volume, and were considered a milder "street" version of the vaunted SD421 Super Duty heads. Every torque specification should be in this table, however if there is one missing, please Contact Me and I will get you the spec and add it to the table. 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. The 303 had shorter connecting rods, smaller 2.5in (64mm) journals and a solid lifter version of the Ram Air IV camshaft. 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. Pontiac went to open-chambered heads in some 1967 models and all 68 and up to improve power, engine breathing and reduce emissions. Year: CU IN: Casting # 1967: 326. Price $14000.00. Despite their work, the division's conservative management saw no immediate need to replace the Pontiac Straight-8 until later in the 1950s. Fuel pump: Will use 110-gph Carter Like the 326, it was offered in both 2-barrel and 4-barrel versions. That's the factory rating of the legendary 421 H.O. 421 CID V8 - 4BBL - Automatic - P.S. More 400cuin (6.6L) engines were produced by Pontiac than the other versions - estimates range from 80 to 200 units. CO2, . In 1974 it was used in the GTO and was rated at 200hp (149kW) (net). Engine Oil: 120 ft-lbs. Piston pins: Icon, SAE 1016 to 1022 Keepers: Comp Cams race locks Special Offer on Antivirus Software From HowStuffWorks and TotalAV Security. 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. The camshaft was the HO cam with 288/301 duration. Rings: LPC (Liberty Performance Components) premium moly, standard tension 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. Distributor: '61 Delco cast-iron with direct oiling . ENGINE TYPE Water-cooled V-8, cast iron block and head Displacement 428 in 3, 7015 cm 3 Power 390 hp @ 5200 rpm They came up with a 269-cubic-inch (4.4L) L-head design. Simply put, what good is the power if the engine does not last? The Ram Air IV replaced the Ram Air II in 1969. The 287 was an "oversquare" engine with a bore and stroke of 3+34in 3+14in (95.3mm 82.6mm), for a total displacement of 287.2cuin (4.7L). 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. Engine Specifications. Coil: GM Torque: See Part 2 In 1967 the 421 was enlarged to 426.61cuin (7.0L) by increasing its bore to 4.12in (104.6mm). The compression ratio will be 10.6:1. The Armasteel cast crankshaft was the standard hardened cast-iron crankshaft used throughout the entire Pontiac V-8 line until 1967. 1968 Pontiac GTO 428 / Royal Bobcat. 1965-75 Pontiac & Tempest engine tune-upspecifications including timing, dwell angle, and Spark Plug Gap, and firing order. The 455 was fundamentally the same for the 1976 model year, albeit the shaker decal now just read "455". [11] By mid-1978, the W72 could no longer be ordered in conjunction with the MX1 3-speed Turbo-Hydramatic 350 automatic transmission, and could only be ordered with the 4-speed manual transmission. [19], Parts for Ram Air V engines are not readily available. A mechanical system built by Rochester, it was similar in principle, but not identical, to the contemporary Chevrolet "fuelie". The Pontiac 2+2 featured a 6.9 L V8 engine, heavy-duty front springs, dual exhaust and distinctive exterior body design. Are you thinking of buying a 2007 muscle car, or any other car? By comparison, the factory 421 H.O. 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. Original plans called for a forged crankshaft, although actual production SD455s received nodular-iron crankshafts with minor enhancements. Pushrods: LPC chrome moly 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. 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. The manuals had Hurst shifters. It was factory rated at 366hp at 5,400 RPM and 445lbs.ft. The 1979 Firebird model line was the last year for the Pontiac 400, and by this point not only was it required with the 4-speed manual transmission, it also required the WS6 Special Handling Package as mandatory equipment. 1966: 421: 9782611 (late) 1967-1969. Preparation: Cook, bead blast, magnaflux, bore, true decks, align bore SELLER Glendale, Arizona 85305. Specifications listing with the performance factory . An evolution of the RA IV and H.O. The XS-code 389 was still rated at 360bhp at 5,200 rpm, same as the more common WS-coded Tri-Power 389, but performance was noticeably improved on acceleration runs. Contemporary road tests suggest that it was actually somewhat inferior to the Tri-Power engines, although it did have better fuel economy. 5 January 2007. 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 a few more ponies through better oil control, a factory full-length windage tray will be added, since Pontiac didn't use one on this engine originally. Engine, horsepower, torque, dimensions and mechanical details for the 1966 Pontiac Catalina. gasoline (petrol) engine with displacement: 6902 cm3 / 421.2 cui, advertised power: 252 kW / 338 hp / 343 PS ( SAE gross . The four-barrel version, set up for sustained high speeds, had 390 hp. 1966 Pontiac Catalina 068) to 301/313 (No. A 400 cubic inch ram air equipped V8, it was an option on the 1969-70 GTO and Firebird Formula. All 196869 #9792506 Ram Air 400 blocks have 4-bolt caps. The 301.6cuin (4.9L) 301 was offered from 1977 to 1981 and also installed in other GM cars during those years. RamAir 4 Motor Price $15500.00. . 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. 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. 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. By comparison, the factory 421 H.O. All GTOs built from 1964-66 were powered by a 389-cubic-inch V-8 with 10.75:1 compression. The goal of making a Pontiac Hemi succeeded but the engine was never produced. 1966 Pontiac Ventura Specifications. See Consumer Guide Automotive's New-Car Reviews, Prices, and Information. With A/C On, Engine Hot: 421: 1966: With Tri-Carb, With Air Injection reactor: 45S: 0.035: Two tri-power 421s were optional, one with 356 bhp, the other with 376. On this Wikipedia the language links are at the top of the page across from the article title. Wires: NAPA Belden 7 mm Kits for Pontiac applications. Pontiac continued using its round-port cylinder-head design for 1971-'72 on the 455 HO. The 421 SD produced up . 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. A larger 4in (101.6mm) ram air flex duct to the air cleaner from the left-hand fender, specific carburettor calibration for the Rochester Quadrajet, a "T/A 4.9" callout on the shaker, 60 psi oil pump, and cam similar in grind to the 220hp (164kW) 400 from the 19781979 model year were also included.
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