- click the button below: Check: 1971 Pontiac Le Mans Coupe 350-2 V8 Horsepower/ Torque Curve Check: 1971 Pontiac Le Mans Coupe 350-2 V8 car fluids (oil and coolant) capacities Transmission specifications Both of them made north of 300 hp, with the L46 making 350 hp during its limited run. - click the button below: 1971 Pontiac Firebird Formula 350 standard and alternative wheel and tire sizes, How fast is this car ? They are prone to seizing and failing, sometimes in the middle of operation. Im trying to get the tolereances for the motor. No additional gasket matching or port work is required, but smoothing any sharp corners in the ports left behind after the valve cutter is also suggested. The Some product and company names mentioned on this site may be trademarks of their respective owners. These are standard specifications - not necessarily specifications for the vehicle(s) in the photo(s). site. What dimensions ? The air-fuel mixture must be in proportion to the speed and load placed on the engine. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Made with for Muscle Cars - Musclecarfacts.com Copyright 2023. Fortunately, the Firebird, along with the Camaro, was allowed by GM to carry on past that point as a pony car, and sales would pick up greatly once the competition was out of the way. While the LT1 topped out at 300 hp, the LT4 made 330 hp, and many said it was actually underrated by Chevy for insurance purposes. Among the different versions, the small block Chevy 350 engine is probably the most well known and widely utilized. The other two Second Gen 350 Chevy small blocks were the LT1 and LT4. Four of them. Supporting mods like larger fuel injectors, a higher flowing fuel pump, and a higher flowing intake manifold, will help you gain even more. The incorporation of material or any part of it in any other web-site, electronic retrieval system, publication or any other work (whether hard copy, electronic or otherwise), also the storage of any part of this site on optical, digital or/and electronic media is strictly prohibited. It had hydraulic cam, a 4bbl Quadrajet carb, cast pistons, 4-bolt mains, and originally a 10.25:1 compression ratio. In addition to headers, he suggests 3.00-inch-diameter head pipes with a cross-pipe exhaust system, high-flow cats and low-restriction mufflers of your choice, and 2.50-inch tailpipes. Pontiac Factory Cam Specs - by Wallace Racing Home of Pontiac Powered Firebirds,Trans Ams,Pontiac Powered Dragsters,Pontiac Power Rules! What diameter? - click the button below:Check:1971 Pontiac Le Mans Coupe 350-2 V8 Engine Horsepower/ Torque CurveCheck:1971 Pontiac Le Mans Coupe 350-2 V8 car fluids (oil and coolant) capacities. proprietary (including but not limited to intellectual property) rights. matters or any part of this site is strictly prohibited. Check Pontiac Le Mans 3gen available production numbers data. - click the button below: Check:1971 Pontiac Le Mans Coupe 350-2 V8 Engine Horsepower/ Torque Curve, Check:1971 Pontiac Le Mans Coupe 350-2 V8 car fluids (oil and coolant) capacities, Gearbox:Transmission type:manual Number of gears:3 Complete transmission data: gear ratios, final drive, etc. | 5.7 L. Power : 250 BHP (184 KW) Bore . With well over 100 million built by now, the 350 has solidified its place in performance engine history. At this point, Chevy was only using the small block 350 in the Corvette, Firebird, and a few trucks. It was also one of the first engines with rod bolts, four bolt main-bearing caps, and a reinforced block. Though it had a similar engine code as the 1970-72 LT-1, it was a distinctly different engine. Final torque ratings may vary and need to be determined based on application and parts used. I want to pick your brain about a couple of topics-some of them most people wouldn't recommend due to cost or horsepower, but I have my reasons. Except as expressly authorized by automobile-catalog.com, you agree not to copy, modify, rent, lease, loan, sell, assign, distribute, perform, display, license, reverse engineer or create derivative works based on the Site or any Content available through the Site. Full performance data, accelerations chart, acceleration on gears, speed range on gears, overtaking factors etc: extra-urban (up to 62mph/100km/h) / city / highway (up to 87mph/140km/h) / average combined: Top speed: 0-60 mph (sec):0-100 km/h (sec):0-1/4 mile (sec):0-1 km (sec):Fuel consumption: ECE 90/120/city (comb. ownership rights to any content, document or other materials viewed through the Pontiac Heads - Ram Air V Tunnel Port High output Pontiac V8 Cylinder Heads 1962 - 389 SD Code 544127 What dimensions ? proprietary (including but not limited to intellectual property) rights. The next model, the Esprit, came standard with a 350 V8 that produced 250 horsepower. Formula Coupe 1970-1981Optional equipment:EEC segmentation:S (sport cars)Subsegment:S-C (sport coupes) - executiveClass:sports carBody style:fastback coupeDoors:2Traction:RWD (rear-wheel drive) Basic dimensionsLength:4867 mm / 191.6 inWidth:1864 mm / 73.4 inHeight:1280 mm / 50.4 inWidth with mirrors: Width folded back mirrors: Height with roof rails or antenna: Wheelbase:2743 mm / 108 in Claimed EPA passenger volume: Calculated EPA passenger volume:85.9 cu ft Fuel capacity:64 liter / 16.9 U.S. gal / 14.1 imp. galDrag coefficient (Cw-Wert): Cd claimed:Cd estimated by a-c:0.47Inside and outside dimensions, ground clearance, turning circle, track, trunk, cargo volume, frontal and drag area, capacities, etc. Should I Build A 301?Good day and great magazine! He also suggests increasing intake and exhaust valve diameter from 2.00/1.50-inches (stock) to 2.07/1.62. His education and historical knowledge makes him skilled at crafting highly detailed articles about Americas muscle cars and automotive history. Engine: 350 Color: Green/White 1 Vehicle Posted January 17, 2021 I've got a 1971 Pontiac 350 with an Edelbrock performer intake (part number 2156) and a 650cfm Edelbrock AVS2 (part number 1906) and I'm in need of a cam swap. 3 speed) as offered for the year 1971 since September 1970 in North America How many were produced ? Unfortunately, the 1970s created multiple problems for Chevy 350 engines. According to the ProfessCars estimation this Pontiac would accelerate 0-60 mph in 9.3 sec, 0-100 km/h in 9.9 sec and a quarter mile time is 17.2 sec. 3) . of torque with number 94 heads. All Pontiac Firebird 2nd-gen. Formula Coupe all versions1971 Pontiac Firebird Formula 350 Horsepower/Torque Curve1971 Pontiac Firebird Formula 350 Detailed Accelerations, Performance Review1971 Pontiac Firebird Formula 350 Tire Sizes, 1970-1981 Pontiac Firebird 2nd generation all versions catalogue, 1971 Pontiac Firebird 2nd-gen. While these certainly increase performance, they're likely only good for 20-25 hp. The automobile-catalog.com website is only for the on-line view using the internet browser. site. 3) Detailed Performance Review; fuel consumption and . Detailed Search Interface on the Home Page, 1971 Pontiac Firebird Formula 350 (man. and get all the new deets right in your inbox, Classic muscle car history, engine guides, performance modifications and more, Please enable JavaScript in your browser to submit the form, The End of the First Gen Small Block 350s, The Second Gen Small Block 350s Return to Form, Chevy 350 Small Block Vehicle Applications and Production Years, Chevrolet 350 Engine Production Years by RPO, Second Gen Changes to the Chevy 350 Small Block, Chevy 350 Common Problems and Reliability. The Republic P-47 Thunderbolt is a World War II-era fighter aircraft produced by the American company Republic Aviation from 1941 through 1945. The difference in generations presents some problems, but there are still some interchangeable parts. All Pontiac Le Mans Coupe versions offered for the year 1971 with complete specs, performance and technical data in the catalogue of cars . They just dont flow as well and were rated for well under 200 hp from the factory. Most 350s came with iron crankshafts, so upgrading to a forged steel one is also a good idea for durability. without speed governor) Accelerations: 0-80 km/h (sec):6.30-100 km/h (sec):8.80-160 km/h (sec):23.90-200 km/h (sec):0-300 km/h (sec): 0-50 mph (sec):6.40-60 mph (sec):8.30-100 mph (sec):24.20-150 mph (sec):0-200 mph (sec):Drag times: 0- 1/4mile (sec):16.50- 1km (sec):30 Full performance data, accelerations chart, acceleration on gears, speed range on gears, overtaking factors etc:1971 Pontiac Firebird Formula 350 Detailed Accelerations, Performance Review Fuel consumption (mileage)extra-urban (up to 62mph/100km/h) / city / highway (up to 87mph/140km/h) / average combined:l/100km:14.5-17.4 / 23.9-28.7 / 17.8-21.4 / 19.8mpg (imp. - click the button below:Tire size:1971 Pontiac Firebird Formula 350 standard and alternative wheel and tire sizes. . The Markets, where cars with this particular specifications were sold: Engine manufacturer:GM Pontiac 350 V8Engine type:spark-ignition 4-strokeFuel type:gasoline (petrol)Fuel system:carburetorCharge system:naturally aspiratedValves per cylinder:2Valves timing:Additional features:Rochester 2-barrel carb, dual exhaust OHV, V90deg Emission control:Emission standard:Cylinders alignment:V 8Displacement:5798 cm3 / 353.8 cuiWhat power? Specs datasheet with technical data and performance data plus an analysis of the direct market competition of, Pontiac Le Mans Coupe 350-2 V8 (man. 350.0 cu in. Chevy used the LT-9 and LS9s to power their trucks, and most of the engines from the 1970s were discontinued. Purchaser must report all warranty concerns to the manufacturer at 1-866-564-8943 immediately. And why do they only rev to 4,400 rpm? Privacy Policy. I had a '69 Tempest stocker with a 350HO engine. . Like for the crank and cylinders and stuff for a rebuild. site (including ProfessCars and automobile-catalog.com) are protected under applicable copyrights, trademarks and other Chevy launched four different versions of the 350 in the 1960s; the L48, L46, L65, and LM1 V8s. Since speed is equal to the distance traveled divided. ):16.2-19.5 / 9.8-11.8 / 13.2-15.9 / 14.3mpg (U.S.):13.5-16.2 / 8.2-9.8 / 11-13.2 / 11.9km/l:5.7-6.9 / 3.5-4.2 / 4.7-5.6 / 5.1Driving range(km / miles on tank) extra-urban (up to 62 mph /100 km/h):370-440 km / 230-275 milescity:225-270 km / 140-165 mileshighway (up to 87 mph / 140 km/h):300-360 km / 185-225 milesaverage combined:324 km / 201 miles. 1971 Engine Codes Code: Application: Displacement: Compression: Horsepower: Transmission: Heads: Camshaft: Carb: WC: HO 4 Bolt. Specs review by Pawel Zal. What top speed ? I would like to try to coax a little extra performance from the engine and was wondering if adding aluminum heads and new intake along with a 4 barrel carb would give me this extra performance? The incorporation of material or any part of it in any other web-site, electronic retrieval system, publication or any other work (whether hard copy, electronic or otherwise), also the storage of any part of this site on optical, digital or/and electronic media is strictly prohibited. So the little 350 ain't no slouch. The LT-1 is one of the finest Chevy 350 engines they ever created, and the ZQ3 and L82s are both solid V8s. (October 2016) 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. Because the Pontiac V-8 is a 90-degree arrangement and the 301ci is a low-deck design, you'll be forced to shorten the runners of a traditional intake manifold and bring the flanges closer to the plenum. I know '80-'81 blocks are stronger, but are the crankshafts really as weak as rumored? The LT-1 engine is another of the most legendary small block engines of all time. It can then be internally balanced and a normal harmonic balancer and flywheel used. - Specifications Table. commercial copying, redistribution, use or publication by you of any such Full performance data, accelerations chart, acceleration on gears, speed range on gears, overtaking factors etc: extra-urban (up to 62mph/100km/h) / city / highway (up to 87mph/140km/h) / average combined: Top speed: 0-60 mph (sec):0-100 km/h (sec):0-1/4 mile (sec):0-1 km (sec):Fuel consumption: ECE 90/120/city (comb. Use it if ya got it. With relatively small intake port volume, peak intake airflow is about 170 cfm at 28 inches of pressure. You do not acquire Violations of copyright will be prosecuted under the fullest extent of the law. (I know it has a different bellhousing pattern, so I'm going to make an adapter plate.) In 1988, Chevy launched the L05 350 small block, and in 1996 they introduced the L31 (Vortec 5700). (adsbygoogle = window.adsbygoogle || []).push({}); Your lookin at 350 for torque with a compression ratio of 8.0:1. This 455 lasted through 1976. . Join our Discord to interact with us and chat about cars and specs. Except some Gen Two LT-1s which were aluminum, and the L98 in the Corvette which was Iron and aluminum. Engine specifications Full engine data: horsepower/torque rpm, etc. - click the button below:Tire size:1971 Pontiac Le Mans Coupe 350-2 V8 standard and alternative wheel and tire sizes, tire pressure data. proprietary (including but not limited to intellectual property) rights. Below is a partial list of all the vehicles Chevy put the various 350 small blocks in by year: Over the years, the 350 went through some pretty extensive changes, hence the more than 17 variants. Make sure you only nominate those who will be driving the car on the application. Both the LM1 and L65 350s made less than 200 hp, and were relatively undesirable versions. Total production was up from the previous year to 53,124. of torque, thanks in part to the casting-number 11 heads and a two-barrel carburetor in 1970; in 1971, the specs were tweaked somewhat, yielding 250hp and 285-lbs.ft. Muscle Car Specifications Performance Model 1972 Pontiac Trans Am Engine Used 455ci/300hp Zero to Sixty 7.0 sec Quarter Mile 14.0 sec @ 103.2 mph It is reported that there almost was not a 1972 Firebird. Some variants got fuel injection starting in 1982-1985, and the rest had them by the 1990s. ISBN 978-83-931772-0-2 automobile-catalog.com The complete catalog of cars since 1945 2010-2023 by PROFESS Pawel ZalAll rights reserved. The 350s managed to find their way into some pretty good trucks, SUVs, and even some untamed Roadmaster wagons. Specs review by Pawel Zal. It depends on how much you are willing to spend and how much down time you . For reference, a traditional Pontiac intake port with a 2.11-inch valve flows some 40 cfm. 7041171 1971 2 350 m fb 7041172 1971 2 350 a fb high alt 7041262 1971 4 455 a fb & all except ram air 7041263 1971 4 400 m fb & all except ram air . The 1980s did not start out much kinder for the Chevy 350 engines. Really, the only small block Chevy 350 engines capable of any performance were the LT-1, ZQ3, and L82s. - click the button below: Check:1971 Pontiac Firebird Formula 350 Engine Horsepower/ Torque Curve, Check:1971 Pontiac Firebird Formula 350 car fluids (oil and coolant) capacities, Gearbox:Transmission type:manual Number of gears:3 Complete transmission data: gear ratios, final drive, etc. Containing a 4-inch-diameter bore, the 301 utilizes a low-deck block, which brings the cylinder-head flange closer to the crankshaft centerline. So even with the stock 3.75 stroke, the 350 has potential. Car wheels spin at different speeds, especially when turning. The automobile-catalog.com website is only for the on-line view using the internet browser. Engine Oil: 120 ft-lbs. If so, what modifications do you recommend if I wanted to see an additional 80-plus hp and/or torque, or should I just drive it stock until the motor gets tired and do a swap? Today, the Chevy 350 engines are still some of the most revered and sought out Chevy motors of all time. Though it was no longer the best selling Firebird, the Esprit was still putting up good sales numbers. 1 = Oshawa, Ontario Z = Fremont, CA S = California- Southgate Engine Code Beginning in 1955 a 2-digit engine code was stamped just under the passenger-side cylinder head. site. It made 434hp on the Dyno and ran 12.60's. And this was with forged TRW pistons, cast rods, and unported #48 heads. To view table with complete performance data and technical specifications (including final drive and gear ratios, powertrain description, dimensions, accelerations chart etc.) without speed governor)The same class cars with similar kind of fuel, power and type of transmission: 1971 Buick GS 350 Sport Coupe 4-speed North America U.S.5.7-litre / 349 cui145.5 kW / 198 PS / 195 hp (SAE net)194 kW / 264 PS / 260 hp (SAE gross)1971 Buick GS 350 Sport Coupe North America U.S.5.7-litre / 349 cui145.5 kW / 198 PS / 195 hp (SAE net)194 kW / 264 PS / 260 hp (SAE gross)1971 de Tomaso Mangusta (4.5 axle) North America U.S.4.9-litre / 302 cui 171.5 kW / 233 PS / 230 hp (SAE gross)1971 de Tomaso Mangusta North America U.S.4.9-litre / 302 cui 171.5 kW / 233 PS / 230 hp (SAE gross)1971 Chevrolet Chevelle Sport Coupe 350-4 V-8 Turbo-Fire North America U.S.5.7-litre / 350 cui130.5 kW / 177 PS / 175 hp (SAE net)201.5 kW / 274 PS / 270 hp (SAE gross)1971 Chevrolet Chevelle Sport Coupe 350 V-8 Turbo-Fire 4-speed North America U.S.5.7-litre / 350 cui123 kW / 167 PS / 165 hp (SAE net)182.5 kW / 248 PS / 245 hp (SAE gross)1971 Chevrolet Chevelle Sport Coupe 350-4 V-8 Turbo-Fire 4-speed North America U.S.5.7-litre / 350 cui130.5 kW / 177 PS / 175 hp (SAE net)201.5 kW / 274 PS / 270 hp (SAE gross).
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