Most of the Gen V engines were used in large trucks and vans, fitted with cast cranks and cast-aluminum pistons with 8.0:1 compression and 118cc chambers. With the stock-width radiator for a '67 Pontiac, you can easily stuff in an 18-inch-diameter fan (PN 1518, $53.95, SummitRacing.com), but you will need a good shroud to make it work really well. I assume I can either bolt up an S-10 5-spd or buy an adapter to make it work. Is there any way to size a radiator to the cooling load to avoid trial and error? The oil is coming out of the outside valve covers at high rpm on a skidpad at 1 g. It even blew out my dipstick. We found a used 455 short-block on Craigslist that got us started. block. After explaining to Lynn Welfriger at Mondello Performance Products that this 455 would live a high-rpm life (High for an Olds motor anyway! driver. strengthen it, but lets face it - the Olds was not meant for it. Let's dive a little deeper into the relationship of cam timing to compression. Latimer also mentioned that JGM uses the same head gaskets that will be used in the engine and the same fasteners (studs or bolts) if possible. I have a Toronodo 5 quart oil pan with windage The deeper and more vital the part is in the Fuel Economy/Tuning - Olds 455 | Hot Rod Forum base 365hp 442 motor. Heres Everything You Need to Know. There are people that will tell you that the 455ci Oldsmobile Rocket motor makes a better street engine than a race motor. Copyright 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. HOT ROD Captures the World of Racing: 1968 in Photos. ports on Olds motors, dual pattern cams are preferred. Back to the block, I had the block decked so that I have .017" gears, 750HP Holley Double Pumper and I get 7-8 mpg anywhere I drive, even the freeway.. Jerry. The CFM rate is 795, and Then you can run a 195-degree thermostat that will maintain that higher temperature. The Lunati Bare Bones big-block Chevy version specs out at 214/224 with 0.501/ 0.527-inch lift combining the cam and a set of lifters for a mere $115.95 from Summit Racing. This requires a tank drop but it is good preventive maintenance. . This limited flow is partly due to the requirement that the ports (especially the exhaust) remain in their stock locations. Overall, the effort was a great success, and now all we have to do is drop it into our '64 F-85 and enjoy all that torque. Because the compression is so low, you have to be conservative with cam timing using a mild hydraulic flat-tappet. The Oldsmobile 455 stroker Fans of the DOHC 4.6, don't fret. I get about 10mpg. The incident marked the second fatal aviation engine ingestion so far this year. Also, I have yet to decide what type of cam to install, as I'm sure cam type and timing play a role in this equation. rather than "30M", then it's definitely not a 442 motor. Perhaps the engine does not have sufficient venting. Next, it was back to Westech where the balanced rotating assembly was assembled with Federal-Mogul H-14 competition-series main and rod bearings, which have a unique lining bonded to an extra-high-strength steel backing. This creates an overlap when both valves are open in the combustion chamber. As rpm increases, the oil goes to the top of the motor and stays there, draining the pan dry and starving the bottom end at the same time. I never had that problem with my 355ci iron-block engine at much higher engine speeds with the standard Chevy oil pump using the same valve covers. In coming months, we'll pound a Pontiac and bang on a Buick. Updated on 12/23/18 There's no question that 455 cubic inches of displacement equal a big motor. Diesel pushrods, rockers, and bridges. Witness the fact the 1970 455 W-30 was only about a tenth quicker at the track over the W . Transmissions Each of these kits includes a Eagle steel Just run the juice, use when you need it. Real-world dyno numbers are always better than best guesstimates. out exactly what you need. This affects the shift points and shift firmness. Unfortunately, this lesson was learned after this Olds motor was rebuilt and put to use. Oldsmobile 455 Big Block Engine Build - Car Craft Magazine - MotorTrend Since the motor had to come apart, we seized the opportunity to replace the nondescript, RV-grind camshaft with a new COMP Cams roller valvetrain. So 10 times more volume at BDC than at TDC creates a 10:1 static compression ratio. That's like asking to compare Chevy, Ford, and Chrysler motors. Flex-a-lite makes four reverse-rotation flex fans in 16-, 17-, 18-, and 19-inch diameters. The Oldsmobile V8, also referred to as the Rocket, is series of engines that was produced by Oldsmobile from 1949 until 1990. Get a heavy and the GM thermo clutch fan and a 160 thermostat. engine, which was introduced in 1968 and featured in the Hurst Olds, Toronado and full-size models, became the standard 4-4-2 powerplant, rated at 365 hp . Yes you can get the kits to If the VIN derivative on the block shows it being a 1969 engine ("39M" We've Got Solutions!CarCraft@CarCraft.comCarCraft.com motors were a deeper blue. According to my trusty Olds engine book, the 455 was available in 455 Oldsmobile performance engines make great torque and good horsepower even in stock configuration. Basically, these engines are intended to run at 5,500 rpm and below. How To Increase The Size Of A Pontiac 455 Engine: Exploring Different 310/781-2222Edelbrock.com, Lunati: It also has aftermarket A/C installed. Duplication of effort? I have a question regarding lobe separation. getting new ones anyhow. Automatic Transmissions, Torque Converters & Parts. of the "Engine Detail" sections should be read before proceeding with I would like to stick the next size radiator in the car but would hate to waste the money if I then find I have to go bigger and start cutting. Hippie After dyno testing with the cam and ignition, a vintage Offenhauser tunnel-ram and a set of custom carburetor adapters were added to provide a home for a pair of 750-cfm Holley HP-series carbs, mounted sideways. If all the rings are inverted, that is the root of the blow-by problem. 455 engines through the years have some differences. The 455 Oldsmobile stroker kits are also available in .030 and .060 oversizes. To find out, Car Craft, in conjunction with Westech Performance, has decided to build up an example of each 455 using commonly available off-the-shelf performance parts. At that compression, don't get too aggressive with the timing on pump gas-around 34 degrees should be about right. This will yeild CR in the 14 range. He didn't see anything wrong with retaining the high-volume pump and the amount of oil in the covers. Rumors of rear-face "F0" etc. with file fit plasma moly rings. I'm assuming this is a relatively new engine, so it's possible that the engine builder mistakenly installed a top compression ring upside down, which would instantly create this situation. Since you're changing the pistons, I strongly recommend balancing the We also wanted to see how the motor would respond to having more fuel thrown at it. Edelbrock, are you listening? In truth, a stock 455 does have a couple of drawbacks that are detrimental to living life above 4,000 rpm for extended periods. I would prefer to cool it with only a radiator, a beltdriven fan, and a shroud. Trucks Invade the 2023 HOT ROD Power TourMega Gallery! expensive than cast for an Olds and they are superior (stronger and better heat This package should make about 450 hp and might push upwards of 500 lb-ft. More Info:Edelbrock Our own flow testing and DMR's experience showed us that the off-the-shelf Edelbrock aluminum Performer RPM heads flow about the same as a set of factory iron C heads. If the engine is one of these high-performance motors, it's pretty easy to If not, it's a little tougher. Hot Rods - What do you think about a 455 olds? - Preaching the gospel due to mismatches in the drilled holes. (US$10). 9.5:1 as installed, if you don't mill the heads or use thin gaskets. lost the boss where the clutch z-bar used to mount, which affects only manual 310 hp, 320 hp, 365 hp, 370 hp, 390 hp, all street engines, with full VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. In 1968 the legendary 455-cid V-8 producing 365 horsepower came to life and is sought after today by Oldsmobile enthusiasts. As long as you don't have an oil starvation problem in the corners that would cause the oil pressure to drop (because there's more oil in the valve covers than there is in the pan), it appears that creating a decent breather system would be the best solution. Cylinder Heads Engine technology has come a long way since the '60s. Puking OilGerald Lum; Rolling Hills Estates, CA: I'm running a Melling M55HV oil pump in my 427ci small-block. Pulls hard past 6000 RPM with lots of bottm end torque. Cop Car Coilovers? Although the engines will use a good cam and heads, we'll assemble the bottom ends just like an average car crafter would: no exotic parts or niche tricks--just good machining practice, premium Federal-Mogul bearings, Speed-Pro piston rings and forged pistons, and Fel-Pro gaskets. Hooker 17/8- and 2-inch primary-tube header sets are exceptions. A further advantage of more compression is it will dramatically improve throttle response and crispness on the street, not to mention its minor contribution to better fuel mileage. The block coolant passages were changed slightly, making a conversion to Mk IV heads easier. Cutlass The plan was a much more street-conservative approach versus our usual max-out horsepower effort-more of an everyman's big-block. All were unique designs, sharing only a common rear block-face bolt pattern. It was also found in the family-friendly Delta 88 and a number of luxury sedans, and it was widely used in the legendary Olds 442 muscle car. The valves are Milodon stainless debur the runners, and polish the exhaust ports. is easy to swap, so it's not a definite sign. The Jennifer Lawrence vehicle from Sony Pictures revolves around a sex worker who, like the film, doesn't want to admit what she's doing. Olds 455 | Hot Rod Forum Cranks response for pullling those people up out of the water. So the factory hp rating doesn't mean much. It Feels Faster, I Swear Of course good If the passenger-side manifold has two openings, it's Also, what is the appropriate thermostat for that engine? And that will be much more fun to drive. If you look closely at the torque numbers, you can see a slight dip in the curve between 3,800 and 4,500 rpm that may be due to a combination of the single-plane intake and the large 2.00-inch dyno headers. to install than a rope seal, especially with the crank in place, side). Oldsmobile Performance Engines identify where it came from. Some say I can use old 454 heads, and some say use marine heads. Part numbers with a "B" preceding the part number indicate that the price for that kit includes balancing before A short-duration camshaft makes more low-rpm power than a long-duration cam because the intake valve closes sooner, allowing the cylinder to squeeze more air and fuel. piston to deck clearance. This is the most obvious giveaway. Induction, Ignition, Exhaust The Olds was equipped with an Edelbrock Performer dual-plane intake fed by a Speed Demon 750-cfm carb, ignited by an MSD billet Olds distributor, and exhausted by Hooker Super Comp headers. The engine made more than 500 lb-ft from 3,500 through 4,800 rpm and more than 400 hp from 3,800 through 5,500 rpm, the highest rpm point obtained in the test. starting to look into purchasing a 455 olds engine.. i know i want pre 72.. question is i heard alot about these C heads being the best.. all i have found for 69-72 455s are F . from the intake and a slightly different camshaft, a '70 Toronado engine Yet I see some very good things done with the 429/460 engines and with some head work they make power on the cheap but they're . point from the advertised rating. Among the torque kings in the GM world are the Buick,. I'll always use a two plane intake for the street, either the original or a At the very least, I would suggest a thorough cleaning of the cylinder walls. Get lots of opinions for the people who have actually built PDF Mondello Performance | Performance Oldsmobile Parts and Engines compression ratio precisely, however I've found that just assembling this UCC Truck Show 2023: Maximum Performance Under Big-Time Pressure. Jeff Smith: Your timing this month was impeccable, Ron, since this column earlier touched on lobe-separation angle (LSA). There are people that will tell you that the 455ci Oldsmobile Rocket motor makes a better street engine than a race motor. Nevertheless, this giant engine from the General is a little mysterious. The shroud's purpose is to pull air through the entire surface of the radiator core. By your description, it appears that the addition of a high-volume (HV) pump will tend to move more oil up into the valve covers, which could easily result in a portion of that oil taking residence inside the breather, creating the barfing (a great adjective by the way) that ends up spraying all over your valve covers and headers. 455 Buildup Engine - Car Craft Magazine - MotorTrend 307 The History Of The Oldsmobile 455: GM's 'Other' Big Block - DrivingLine The biggest advances have been in cylinder-head and camshaft design. It offers a starting power of 310 to 400 horsepower, but 500 pounds of torque really set it apart. We then took the block, crank, rods, and pistons to Barrington Engines where Don Sr. and Don Jr. cleaned, bored, and torque-plate-honed the aging jet-boat motor. so I'm leaning toward a mild one this time. Olds FAQ -- 455 CID Engine Detail - ClassicOldsmobile.com bumps down, All this was also with an eye toward not destroying what was left of our meager car budget. Let them tell you what they do-don't ask if they use two plates. UCC Truck Show 2023: Maximum Performance Under Big-Time Pressure. Marine 455 Unlike standard rebuilder rings that often come gapped way too wide, the Speed-Pro set was factory-gapped to the recommended minimums. With Castrol 10W-40 GTX oil, it gets about 50 to 55 psi at a steady 2,700 rpm. By Greg Acosta January 12, 2018 When it comes to Oldsmobile performance there are two things that are known. 303 tore down and have a good machine shop measure the bores. The Big-Block Olds Lives On With Rocket Racing's - Home - EngineLabs The narrow passages from the stock heads do not allow oil in the valvetrain to return to the pan in an efficient manner. used oldsmobile 455 engine for sale | eBay Try a Pontiac 421, or Olds 455. If the machine shop says you're within tolerances for a hone only and you do OTOH, the specs on the 400hp W-34 motor was identical to the 390hp W-33 and 877/777-7505Mark7Radiators.com, U.S. Radiator **This price includes Edelbrock's $50 rebate. Cam technology has come a long way since the 70s. Westech recorded a peak of 565.3 lb-ft at 3,500 rpm, but that was already on the downside of the slope. That's part of the sacrifice of a camshaft with lots of overlap. for an Olds motor (but don't be surprised if you can't find one). I understand the valves wouldn't overlap as much with the wider separation creating more vacuum, but I'm wondering what you sacrifice in the long run. Top this off with an Edelbrock Performer RPM dual-plane intake (PN 7161, $219.95, Summit Racing), a 750-cfm Holley carburetor, and a set of 13/4-inch headers and you're on your way. If you are willing to spend a little money, the best move is to remove the heads and have your machine shop mill the net valve lash stands and drill and tap the original 3/8-inch boltholes for 7/16-inch head studs and guideplates. In other cop car news, we are planning some 4.6L, two-valve, bolt-on articles, so here's our car at Racers Edge Tuning in Downey, California, for baseline numbers. 1968-1969 olds 455 engine is this good and how can i id "She may not look like much, but she's got it where it counts, kid. Heres Everything You Need to Know. 2.07/1.68-inch valves (PN 60519 complete) 662/892-1500LunatiPower.com, Summit Racing: What Is an Oldsmobile 455-Inch Big-Block? - MotorTrend While many enthusiasts still claim you can only make power with a set of rectangle-port heads, the reality is the factory oval-port castings are perfectly suited for street performance. While the good Dr. Olds factory variants have been the staples of Rocket performance building for decades, Edelbrock's aluminum head contribution has made building one of these big-blocks enticing and weight conscious. A relatively new engine at operating temperature should deliver a leakage of less than 10 percent. Olds. Light Em Up: Drag Racing, the HOT ROD Power Tour Way, What Is a Vista Cruiser? Latimer said this is extremely common with aluminum LS engines. Description of specs and parts included in Street & Strip 455 Oldsmobile rotating assembly kits. The center The rings are a standard-gap premium Speed-Pro set (5/64-inch high-strength plasma-moly ductile-iron top; 5/64-inch cast-iron second; and 3/16-inch standard-tension SS-50 oil control). can use a 460 Ford rear main seal which is same size as Olds but is a two To compare them, measure the space between the coolant tubes. The oil restrictors let the motor rev freely to 5,500 rpm without fear of seizing. For and with open exhaust) ran a best of 13.5 without the nitrous and We went with Edelbrock's Performer RPM Olds heads, which come complete and ready to run with stainless steel 2.072-inch intake/1.680-inch exhaust valves, hardened ductile-iron valve seats, phosphor-bronze guides, valvesprings, guideplates, and rocker-arm studs. This engine will reside in my '68 4-4-2 convertible and is sporting Edelbrock aluminum heads with a Mondello super competition port job, Probe aluminum pistons, and an Offy intake. The Toronado engine (1969 and 1970) was rated at 375hp, but in point of It is a small-block Chevy with a crank-driven Potvin supercharger being fed by eight carbs. 11.95 @ 115.5 mph with the nitrous. The heads will provide the greatest performance improvement; if you can at Anyone know anything about Olds 350's? | NastyZ28.com Light Em Up: Drag Racing, the HOT ROD Power Tour Way, What Is a Vista Cruiser? Comp Ratio This is due to many factors, not the least of which is that the 455 Olds uses a monstrously heavy rotating assembly that includes a 3.00-inch main journal crankshaft. ), he set us up with all the parts necessary to keep the motor from seizing. degree center line. Engine was broken in with Joe Gibbs BR 15W-50, oil pressure was good with this oil. 330 The adapter allows you to adjust the tension on the TV cable, which will alter the shift timing and firmness. Aside This is what we've run into on our Lester Scruggs 404ci LS engine with the big camshaft with lots of overlap at idle. I'm using the stock This is all about enjoying the car from behind the windshield. Joined: Jan 13, 2004 . This month we'll showcase the buildup and test of a '72 455 Olds. Use a high volume oil pump and a Toro pan if you can find one. A long-duration cam with more static compression will still deliver decent cranking compression of 180 to 190 psi, while a long-duration cam with low static compression will lose cranking pressure down to perhaps as little as 160 psi-depending on the size of the cam. This places the breathers higher, which will prevent the oil from escaping. 455 with "J" heads & hardin logs. Maddie (Lawrence) is a 32-year-old Uber driver who . Our Eagle Oldsmobile stroker engine kits offer a great balance of strength, performance,

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