Another engine that added excitement to the Camaro was the 302, dispensing 290 horsepower at a high winding 5,800rpm. He dialed in 35 degrees of total timing and pushed it to 7,400 rpm and got 505.5 horsepower and 394 lbs.-ft. of torque at 5,900 rpm. All I can find have the VA on them. When it was introduced in 1968 the 307 was rated at 200 horsepower at 4,600 rpm and 300 foot pounds of torque at 2,400. Set the dial and use 0 on the timing tab. We also added a complete MSD ignition system to keep everything lit at high revs.. Since the cars were not only subdivided by their basic power units but also their various trim packages and other options, well over 300 varieties of Chevelle were available from the factory in 1969. The engine has AC-R45S-type spark plugs with a 0.035 gap. We have much more information about the ever . Jeff was positive more could be done with the 307. The standard Super Sport was no slacker either and much more common. All 396ci engines were available with chrome valve covers, but only the 350 and 375 horsepower models were equipped with an open-element air filter. got a Buick V-6 with similar specs. The 1969 Chevrolet Chevelle Series measures 75.70 inches in width, The 1969 Chevrolet Chevelle Series measures 201.00 inches in length, and has a wheelbase of 116.00 inches. Vehicles with Similar Dimensions. All of these engines were available with the three-speed manual transmission as standard equipment, but the four-speed manual and three-speed automatic transmissions were an option. Because this is a hydraulic roller cam, it requires a cam button. 30052, Loganville, GA. 1969. It lifts the design beyond mere transportation and gives it an upscale look that complements the handsome trim and tidy proportions. Not being an SS doesn't mean the interior isn't a performance-oriented place to do business in comfort and style. What Jeff did know during that first dyno session was he didnt have enough cam to make real power. With that power your block is suspectable to splitting. Known as the Chevelle COPO 427, this run used the L 72 engine from the larger Chevy lines, a 427 cubic inch V-8. Not only did the 1970's Chevelles usher in a new decade, they also saw the peak of muscle car performance. Quarter Mile. [ 1964 ] | [ 415 @ 3400. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. 307 V8, UPGRADED TH400 AUTO, PWR STEER/BRKS. Vehicles; . //For full source code, and Terms Of use, visit http://dynamicdrive.com Vinyl tops were made available for all coupe and sedan models. emission system (A.I.R). They were good solid dependable engines with a long legacy of service. iframeobj.src=randomcontent[Math.floor(Math.random()*randomcontent.length)] Lime Green Metallic looks better on the 1969 Chevelle than almost anything else. Please cant find anything on them. Jeff opted for a cool aluminum timing cover. How cool is that?! With benches and a column shifter, it has a very laid-back demeanor that's perfectly appropriate for the Chevelle, and all of it remains in good condition. With the 4.4-liter V-8 gone, the 150-horsepower 5.0-liter V-8 became optional on wagons and sedans; it was previously offered only on . JavaScript is disabled. Despite Jeffs best effort, he understood there was a lot of power sleeping in the petite Chevy small blockmore than he even knew or expected. If I were recurving a stock 307 engine dist I'd set it up with about 26 deg centrifugal, all in at about 3000 rpm, which would allow 10 deg initial. The 307 never caught on as a performance engine because it was so easily replaced with a 327 or 350, so why bother? Although Super Sport became an option, the 396ci engine packages were virtually the same as they were in 1968. ft/32.5 kgm) at 2400 rpm. 1969 Chevrolet Chevelle. If you want a cam for a bit more hp, go for a torquer and avoid anything that just moves things up the rev range. I'll probably have to mark it on the damper instead to get a more accurate reading. The hydraulic cam does not have clearance ramps so I set the lash at zero cold. The greater spring pressure and solid rollers would allow the engine to rev higher than before., Jeff admits he became greedy about power. 402/4sp bench. Copyright 2023 Classic Cars for Sale - Streetside Classics - Sell My Classic Car. Optional V8s included the 275-horsepower 327, 295-horsepower 350, and a 396 mill that provided a sizzling 375 horsepower via an 11.0:1 compression and four-barrel carb. Engine Used. These cars were based on the Chevrolet Chevelle, but the line had its own logo and nameplate, and was neither marketed nor actively sold in the United States. The '69 Chevy Service Manual specs list the 307 at 2 deg BTDC at idle (with vacuum adv disconnected) and max centrifugal advance of only 28 deg BTDC at 4300 rpm. 1969 Chevrolet Yenko Chevelle COPO 427 specs, 0-60, performance data, top speed, engine specifications, pictures. 1967 ] | [ you can juggle a bit for best performance. Jeff quips, I have seen aluminum rod engines with a heavier weight than that!. Panel alignment and door gaps are quite good, and the light pinstripe that runs the length of the car gives it a sleek look that proves you don't need SS stripes to have a great-looking A-body. No difference in performance. In the 1967 SS396 Chevelle the standard engine was called the 325-hp Turbo-Jet 396 V-8. My CNC race preps a block in 30 minutes and that is bored, and decked in perfect 45 degree bank angle as well as bored on that degree perfectly. By doing so, you added $647.75 to the cost, but your 396ci engine received a pair of large valve aluminum cylinder heads. Jeff could have easily infused a lot of compression and cam into the little 307 and built a monster mill. It also raised the idle to the point where I couldn't back the screw out far enough to get it right. That's only 30 deg total advance (initial plus mech) which isn't much for a small block Chevy. It could make a lot of power yet be fuel efficient for the daily driver. Thanks for sharing. While a certain amount of this was due to testing standard changes from "gross" (just the engine with no exhaust . Of those produced, 99 went to the dealership owned by Don Yenko, a retired race car driver long known for ordering and selling high-powered Camaros and Novas. 1971 ] | [ The horsepower and torque of the Chevy 307 engine varied slightly from 1968 to 1973. Jeff tells us he has witnessed many 307 builds, but not to the extent of what he was about to build. Other models available in the 300 DeLuxe line were the Sport Coupe, 4-door sedan and the Greenbrier Wagon, whose named had been taken from the recently defunct Corvair line and represented the middle-range Chevelle wagon. This one was the humble Chevrolet 307ci small block, which replaced the venerable 283 that had been in production since the 1950s. Never again would this much power be built into these cars. Required fields are marked *. Rayne is currently pursuing a Bachelor of Science in accounting and psychology through Liberty University. For a better experience, please enable JavaScript in your browser before proceeding. I generally set total around 38 degrees around 2500 rpm. 396 (RPO L78) 375 @ 5600. Specifications listing with the performance factory data and . He opted for a small journal 327 forged steel crank with bearing spacers for the large main journal block. Chevrolet Chevelle Performance Statistics, Plymouth Barracuda Performance Statistics. That engine had the same 9.0-1 compression ratio as the 307. 1969 Chevelle Engine Horsepower & Torque Specifications. Jeffs first trip to the dyno netted 401 horsepower at 6,400 rpm and 372 lbs.-ft. of torque at 4,600 rpm, which doubled factory 200 horsepower ratings. 1965 Chevrolet Chevelle . please note the exact page by its address Hauling around an Impala? A Celica 5-sp will cope with 300 hp. dark rosewood metallic w/ black top/stripes/int. randomcontent[1]="http://chevellestuff.net/sidebar/random02.htm" Youve seen hundreds of thousands of them in Chevelles, Novas, Camaros, and untold other mainstream Chevys. Randy Bolig has been working on cars and has been involved in the hobby ever since he bought his first car when he was only 14 years old. You're just jealous because you can't hear the voices! There were twobig changes for Chevrolets Chevelle in 1969. Muscle car enthusiasts may have been upset to see the additional disappearance of the SS 396 Sport Coupe as its own line, but the SS 396 became an accessory package that could be added on to any car in the Malibu series. Some cars are very much cheaper to insure than others. and Air Injection reactor system, Ignition Timing The torque rating is 350 lb-ft. at 4,000 rpm. Many dyno tests have proven that long rods are a waste of money. A forum community dedicated to Chevrolet Chevelle owners and enthusiasts. 1970 Chevrolet Chevelle Series 1969 Baldwin-Motion SS427 Phase III Chevelle. 1971 Chevelle Malibu 307 2001 Triumph T509 2000 Audi B5 1.6. What I can say is uou have a very nice turd that does not smell to bad but your gonna have to hunt real hard or to try to give it away now. After 1973 the 307 was chopped from the GM line engine lineup. The most impressive part of this engine making so much power is that the bore is so small at 3.905 inches and the intake valve equally as small at 1.940.. My objective was to make something special out of an odd-duck, no respect engine that has been normally cast aside for one of its bigger brothers. In a mild climate delete the exhaust flapper valve. Chevy Orange valve covers match the block, and the blacked-out snorkeled air cleaner adds a bit of flash for when you want to open the hood at the next cruise night, while a big radiator keeps it nice and cool up front. I installed new valve springs with titanium retainers that would tolerate the higher rpm ranges expected. Soon after, the Chevy 307 V-8 was produced for high-performance marine engines and sold to the Outboard Marine Corp. This engine was designed to function well in low-performance vehicles such as sedans and other family-friendly cars. Jeff opted for Trick Flow (#30310003) cylinder heads and intake, which were ported for a perfect match and improved flow. Panel alignment and door gaps are quite good, and the light pinstripe that runs the length of the car gives it a sleek look that proves you don't need SS stripes to have a great-looking A-body. The custom pistons are pricey as well as those connecting rods. Manage Settings T Numbers matching 307 V8. This car simply looks great. 1966 ] | [ Let's see what headers . well, a 307 will also do that pretty well. Reportedly to meet new emissions standards, the late-1969 models were held 402 cubic inch engines, though the official name was never changed. I'd feel safe bumping your initial up to 8 deg at idle (with vac adv disconnected). I recall new 1968-73 Chevelle wagons, sedans, and hardtops up and down our Maryland block with 307s. The Concours Estate wagon was the top of the line Chevelle wagon with wood-grain sides and standard features like a boarding step. Chevrolet never did a high-performance 307 like it did with the 283. I would of filled the block to 1-1/2 from the deck and plate honed it for sure. Jeff I live in colorado and I need my pickup engine rebuilt. Very informative. or Mark). Most of us use a dial back timing light. The marine version of this engine produced between 235 and 245 horsepower and even used the same aluminum valve covers that were used in Corvettes and Camaro Z-28s.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. ATC- After top center 13- CA 6 BTDC. That and a freeflowing exhaust with 3.08s and a 4 speed. The pickup in the HEI and big cap work better than you think and you used the MSD anyway. The bumpers are so shiny they look to have been re-chromed, the stainless trim polished, and even the original grille remains in outstanding condition thanks to a lifetime of easy living. Therefore, only the 300 DeLuxe and Malibu remained as designated series for the line. Chevrolet 1960-1969 / Chevrolet 1970-1979; Chevrolet 307 V8 Engine. The paint is likely original, or at least a very old repaint, so it has a few signs of age, but you'll still be proud to show up in this hardtop at the local cruise night and the color hides imperfections quite well. V8. . Uses stock 350 pistons. I have often wondered how light you can get a SBC and still GO. She has written numerous articles for various online publications. The Chevy 307 V-8 engine has a two-barrel carburetor. Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Chevrolet Chevelle Malibu Sport Coupe 307 V-8 Turbo-Fire in 1969 the model with 2-door hardtop coupe body and V-8 5025 cm3 / 306.6 cui, 149 kW / 203 PS / 200 hp (SAE gross) offered since September 1968 for North America U.S.. Building any small block with less than a 4-inch bore is senseless. Registries for Chevelle/Camaro/Nova/HHR. Most opted for the larger 350. In the back the rear seat looks rarely used, while the spacious trunk is as clean as can be, with a correct plaid mat and full-size bias-ply spare tire that could easily be this car's original unit. Very pleased with the results, Jeff told us, Weve made more than a hundred horsepower from the 307/311 without ever pulling the heads., Throughout the process, we performed several timing test pulls. Malibu Series 36 V8 Convertible 2 dr. 6 P : 1969 Chevrolet Chevelle Series Specifications. Vehicle information, history, and specifications from concept to production. //Random iframe content- Dynamic Drive (www.dynamicdrive.com) Here are even more reasons to choose us, And get Exclusive Deals, Inventory Updates, and News, VERY CLEAN SURVIVOR GRADE CHEVELLE! If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. Other than name changes and some slight body style tweaks, the big news of the year for the Chevelle was the 454 cubic . 10- New .019, used .016 Turn adjusting screw in Clockwise until engine misfires, then turn screw out 1/2 turn, 11- With integral intake randomcontent[0]="http://chevellestuff.net/sidebar/random01.htm" Body styles included coupes, sedans, convertibles, and station wagons.The "Super Sport" versions were produced through the 1973 model year and . The L72 used a solid-lifter camshaft, cast-iron heads, and an aluminum intake manifold with an 800-cfm Holley carburetor. The Chevy 307 V8 engine came along in 1968 to replace the Chevy 283 V8. 1968 Chevrolet Chevelle. V8. } var ie=document.all&&navigator.userAgent.indexOf("Opera")==-1 We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. I would have sped up the piston speed with a 5.7 connecting rod and that is even to long. 30+ days ago. Power steering promotes effortless two-finger cruising, while power brakes help stop the Chevelle on a dime. An 450 HP 454 V8 was available. Lime Green Metallic looks better on the 1969 Chevelle than almost anything else. This would trim 100 lbs and more from the motor so you could stick 300 hp in a European sport car or a Toyota Celica, perhaps? Engine: 307 V8: Transmission: 3 Speed Automatic: Color: Frost Green: Interior: Green: Mileage: 31,748 (Unknown) Chassis; Front Wheel Specification: 15" Rear Wheel Specification: 15" Front Tire Specification: 215/70R15: Rear Tire Specification: 215/70R15: Front Brakes Specification: Power Drum: . ft/32.5 kgm) at 2400 rpm. Chevrolets 307ci small block has long been viewed as a mild-mannered grocery getter. I would of never done a full port on the Victor Jr. With the small bore, that really backfired on you and I never use an HEI unless the msd box is in between it and controls the coil. He had the intake manifold ported a bit more and added half a ratio to the rockers1.6 intake and 1.5 exhaust. Chevy Hardcore NEWSLETTER - SIGN UP FREE! Home hevrolet hevelle 1969 Chevelle. Jeff knew it was going to take higher rpms to achieve 500. This article is very instructive about what gets you where, most interesting. What's more, the 327's 3.250 inch stroke made the 307 a clear winner. These fabulous heads could have been used out of the box, however, Jeff wanted maximize the 307s potential with a good port job. Loved the article. Chevelle enthusiasts are typically divided into a few camps: some prefer the mid 60's square body design, while many others maintain the 70-72 years are the golden era. The 327 cubic inch displacement top-end carbureted V8 motor has a bore and stroke of 4 inches by 3.25 inches. Vehicles with Similar 22.13 HP/Weight Ratio. With a believed-original engine and a survivor presentation, this is the one to one if you love the original Bowtie design. L6. Jeff went back to the dyno with fresh 5w30 Mobil1 synthetic, then warmed up the engine. While engine at normal operating temperature and transmission in D" dwell should be at 30 and ignition should be 8 BTDC (Idle Speed 550 rpm). 1969 CHEVELLE SS396,ORIGINAL #'S MATCH,GOT IN 1978,(In 2001 rblt/bored original 396 .030 to 402)/M20/12BOLT/3:31'S . How much would it cost to build the 400 hp version and would you be interested in building one for me? In addition to the wider variety of Chevelles able to include the SS 396 package, more changes to the line came late in the 1969 production year. None of the COPO Chevelles built were Super Sport models, they were all built from base coupes with the $860 COPO option package. 2) Horsepower/Torque Curve If that setup caused ping I'd change the vac adv pot to a less sensitive one that started advancing at a higher vacuum level. var iframeobj=document.getElementById? Your email address will not be published. He added the two highest horsepower numbers were with the 830.
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