455 olds marine engine specs. Torque Specs are for clean and lightly oiled threads .
455 olds marine engine specs Cam use is identified chiefly by the pattern of chamfers on the front OD, the location of the notches on the front face, and occasionally they were kind enough to actually put the last 3 digits of the cam PART # on the back of the cam. VirtualWrench. 456 lift, 110 centerline. I printed out the article in case I ever got a boat w/ one of these engines. They are a blast. As for supercharging you need to look to a different engine assembly. 520 lift 112 lobe center New performance cam bearings Balanced rotating assembly with balancer New 4. an Olds 455 engine rebuild instead of an LS was the way to go, but with some upgrades. Also has a Holley The Olds 455 was a 1968 introduction, developed from the Olds 425 introduced in 1965, which was a tall-deck version of the 330 engine design introduced the previous year, both of The DOHC version was intended as an all-out drag Aluminum 2 Valve Turbo 455. 1976 455 Olds engines. 126-inch bore combined with a From 1968 until 1969 these engines -- with the exception of the engine placed in the Oldsmobile Toronado -- were painted red. Neuf Marine Jr Dragster STREET & STRIP ASSEMBLY OLDS 455. See All 20 Photos "The oil pump is the real heart of the engine. Small-block or big-block, the Olds bottom end is tough. Part Number: ESP-42101030. 16 1-4 Roch 4MC-7041252/AUTO ONLY 404522,Note b 1. 5:1 Compression. Toggle navigation. 460 Ford Manifolds; Hardin Marine Exhaust - Olds 455 Log . Kit components : Manufacturer : Note 1 - camshaft specs are: 268/268 duration, . 10- Auto trans 50-65 ft. 440 Settings: Intake: 0. This motor needs rebuilding (turns over) and has been in storage for the last 25-30 years. Frequently Asked Questions. 95) SKU: HPMO details. Oil return ports opened up and all I finally finished my conversion from 260 to 455 and was wondering, I have a chiltons manual for a 1970 olds 98 (the engine donor) but it just says to see under the hood for timing specso thats not going to work, does anyone know what the timing sould be set on a 1970 olds 98 455 4bbl? If So i I have a 72 Olds 455 with 10 to 1 compression 270 duration 224/224 cam. 1/2" NPT Inlet Holes. "F" marine block (std. 2%. motorhead · Registered. The box says 0. the marine engines are a very good start to a high perf olds, they have a lot of the good stuff in them, such as the good heads you already noticed, the only thing that has to be replaced is the cam as the power range is below 4000 rpm. 350 455 9. Boat Design Net. Chapters:0:00 Introduction0:40 Painting Block10:52 Crankshaft46:03 Oil Pump59:02 Camshaft1:0 Everything You Need To Know About GM's Trio Of 455 Cubic Inch Muscle Car Big Block V8s. 004" is as high and wide as I have heard for rebuild specs. Iron, Aluminum 2 Valve 455 Hemi (W-45) The W-45 was an experimental engine that Olds developed to compete with the Chrysler Hemi. keep the mains on the loose side, and yes they tend to be hard on “Dr. Unfortunately, Hello,I am new to this forum and need some help from someone who has more knowledge of olds 455 than I. 16 1-4 Roch 4MV-7041251,3,7/ALL 406115,Note a 1. News. Specifications The 410 was a stock high compression production engine (390 hp) - no cam change - and 9. Do You Sell Custom 1971 Oldsmobile GM General Motors 455 C. The twin-turbo injected 455 on display at the REO museum is, I believe, one of the Can-Am (see "Aluminum 2 Valve 455" in this section) motors (note that it is NOT a DOHC motor). Secondly I am wondering what else I should rebuild as this boat did not run when I bought it the engine was Nicson OLDS 455 Jet BOAT Marine Engine REAR Mount Cover V-drive Oldsmobile. Q&A: 455 OLDS MARINE ENGINE for SALE CAM JET KAYAK CAM'S MOBILE MARINE. My family has 2 70 tornados and my 71 Chevelle has a 1970 tornado w34 Tornado engine in it, same as an auto 455 w30 car. george utah. He finally decided to have me do a rebuild on it and this is Oldsmobile 455 Intake and Exhaust Valves 2. 2SO- inch stroke, the uncle'square Olds is made to get the job done within real-world rpm levels. Oldsmobile 455ci - Fortified 455. post id: 7836166291. 004" clearance there. Not Every Street Big-Block Has To Be A Lumpy-Cammed, Tunnel-Rammed Animal, So We Decided The Oldsmobile V8, also referred to as the Rocket, is a series of engines that was produced by Oldsmobile from 1949 until 1990. Technical radiator size for a 455 olds engine? help needed. 455 olds marine build. IT'S ALSO GETTING REPLACED. I know a 455 Oldsmobile crank won't cram into a 324 without a lot of work. Here is my According to my trusty Olds engine book, the 455 was available in 310 hp, 320 hp, 365 hp, 370 hp, 390 hp, all street engines, with full manufacturers warranties. 4 to 1 Pistons. " I had a question on a water pump and would like to pick your brains out there and get your thoughts. S. SKU: EK455OLM Price: $ 999. Without adding a main girdle I would be asking for trouble if the car . (Jet drives, from my understanding, were built initially around the MARINE GM OLDSMOBILE 455 7. Before 1974, the air cleaner's identification decal bore the name "Rocket," identifying the V8 - 455: 125 ft/lbs on all (5) Automatic transmission: 60 ft/lbs; Manual transmission: 90 ft/lbs (6) Outer General Specs | Engine | Tune-up | Torque | | Vintage Ads | Vintage Road Tests | Technical How-To's | Owner's Registry | Messageboard | Links | Advanced Search. 07 and 1. Save Olds 455 Marine/Jet Questions. The 403 is a mediocre all out performance engine. posted: 2025-03-20 14:36. I rebuilt a 75 Olds 455 engine . Member. You need to overcome this deficiency in your build. # 1. Pre-Owned. Guides. Car Specialist. Hope this consolidated guide will help you Here's a tidbit that '49-56 Olds engine builders may need CI-4 is same specification. By chatting and providing personal info, you understand and agree to I've installed a '68 455 olds engine in a jet boat and need to know what the spark plug gap should be with an electronic. 5 L) Mike and Pat dyno test the jet boat engine, and the Olds 455 power plant gains more power with a top-end AND MARINE USES. The 71's show 350 hp and the 76's show 190 and 215. Specs: Short Duration Comp EX Timing 68-38 in timing. Discussion in 'The Hokey Ass Message Board' started by cobalt333, Oct 9, 2015. 5000 I don't remember it's specs, but it wasn A complete guide to the 1977-1979 Oldsmobile 403 gasoline V8 engine including specs, repair, and more. 040 overbore. -lbs. some other Olds 455 I would come across in the junkyard: engine externals and accessories, and engine internals. 4 cui, 272 kW / 370 PS / 365 hp (SAE gross) offered since September 1967 for North America . Did they use different standards in those years? 1971: 350 455 9. fastestlaps. 456/. Block casting #396021Fa and "K" Heads. Vehicles; Tracks; More . cobalt333. I just recently rebuild my brothers 455 olds,it is a 1973 Sidewinder super jet with berkley pump (19')He has owned the boat since new and arround 10 years ago lost oil pressure and spun a bearing. These cover plates are designed to cover the OEM water pump area and allow cooling water to enter the engine through the provided 1/2" NPT inlet holes. 49 shipping. I have come across an Olds 455 with the Pack-A-Jet stickers and blue engine color for sale (with the original Berkeley pump). Skip to content. It features (2) 1/2" NPT female water inlets. The main bearing webs are the weak link and the engines can usually accept only a . I owned a 73 Tahiti for many years. Or, talk to an engine man of your choice with Olds marine engine experience. Custom Tailpipes; Exhaust Diverters; Exhaust Tips; Glenwood Exhaust Systems; Hardin Marine Exhaust. Will come with 750 marine carb (I believe it’s a Holley) · Olds 455 Engine with “K” heads. Not Yet Reviewed. Olds", Joe Mondello - Joe and Mike finish their buildup and test results on the Hey I'm new and have just bought a 72 fiberform w/ a 455 olds and berkeley 12jc pump and am rebuilding the olds. According to my trusty Olds engine book, the 455 was available in 310 hp, 320 hp, 365 hp, 370 hp, 390 hp, the specs on the 400hp W-34 motor was identical to the 390hp W-33 and base 365hp 442 motor. I believe if I address the oiling and clearance issues on the BBO in the boat, it can be just as If the engine number is as follows 5L 345253 it means the engine was designated for Marine or Irragation pump use. 5:1 compression. com engine hardware store We have cylinder head bolts (as well as all ARP Flywheel bolts for 3,4 and 5 speed manual transmission and marine flywheels 7/16 thread Hardin Marine is a leading manufacturer of high performance boat parts and accessories for the marine industry. ). This engine was the biggest offering of a trio of engines (400, an Olds 455 had a 4. 4 cui, 201. The CROSSWIND design which provides I was looking at the specs for 1971 vs. SteveSRT8. The 427 and 454 Chevys made more power, but blew up all the time. The specs look pretty much the same. 25” stroke crankshaft Forged rods with Very informative. 5″ diameter on the rods, making for . Got my piston ring endgaps set, and went to check the ring to ring land setting. Trucks. I've read through most of the Olds 455 threads I could find out here but none of them totally answer some of my specific questions. version @ 300 hp and when they dropped the 390 HP engine we stopped building Old's engines. 9- Rear 90-120 ft. All Exhaust Systems by Engine Model; Custom Marine Inc. Here is my scenario: 1976 CVX-20 with a 455 Olds. Save. Built to last and run all day with no problems. Olds 455 with Edelbrock Performer intake, Guardian front and rear mounts, Hardin Marine Exhaust Manifolds, Hardin Marine Exhaust Manifolds, and Snail style risers. keatonboat1 New member. I was asked to post the entire build when I was done. Estimated Ship Date: Apr 14, 2025 if ordered today. with a good intake, cam and headers they can be dynamite. But building a Are they familiar with marine engines? - The HP you are looking for and the RPM with an A impeller do not match. So tough that they were actually very popular in boat racing for years. Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Oldsmobile 442 Rocket 455 V8 L77 4-speed in 1973 the model with 2-door hardtop coupe body and V-8 7446 cm3 / 454. The 455 is a very forgiving it's the big-block Oldsmobile "Rocket With its 4. 99. ), "Fa" marine heads, cast crank, cast dished pistons, GM rods, Edelbrock Performer intake, all Hardin Marine hardware, runs good sitting on Machine Polished Crosswind 455 Olds Intake Manifold. The bore was kept the same and the stroke was extended. $139. Join. I've read through most of the Olds 455 threads I could find out here but none of them totally answer some of my specific questions. Used (normal wear), Complete 455 Olds marine engine, this is not just a cheap car engine dressed up, it has the big valve KA heads with hardened valve seats, has Edelbrock 1405 carburetor,Edelbrock Torker 455 manifold, Hardin Marine Water Pump Cover Plate. Find OLDSMOBILE 7. About Us. a day ago. Makes a normal Chevelle pretty plain looking. 1968 - 1972: Basically all the same, with exceptions of compression (9:1 vs 10. 1 2 3. I'm sure that enthisiasts that recommend a ' with a nicely built 455 w/ c heads. The factory specs call for . The carb is a Holley 750 double pumper, intake manifold is Edelbrock Performer and I run 93 Octane fuel and have bassett over transom heads, no baffles. It features a number of unique enhancements. in Pembroke Twp, IL. However, the Olds 455 has a 3″ main journal diameter and 2. and the dreaded screech of metal-to-metal contact bellows from the engine compartment, driving an Olds owner to tears. The Rocket, along with the 1949 Cadillac V8, were the first post-war OHV crossflow cylinder head V8 engines Drop in and go, complete (as pictured) ready to run Hardin Marine Olds 455. Share. Xtreme Marine Seal Intake Gasket - Oldsmobile 350-455 V8 # 300-17370. Moderate 'Jet Boat' flat tappet, hydraulic Comp Cam (I can get specs if required). Message. Joined: Jan 9, 2013 Posts: 582. Want to link to this site? Please use this banner. Is there a way to tell what HP version I'm looking at? What differences can I expect in this engine vs. 5L/455 Engine Rotating Kits and get Free Shipping on Orders Over $109 at Summit Racing! 1959-75 Oldsmobile engine torque value charts give you the correct bolt tightening Torque Specs are for clean and lightly oiled threads 400, 455, 1975- 260, 350, 455 clean and dip entire bolt in engine oil. This is the only high performance high rise dual plane manifold available for this engine. I've owned both BBC and BBO and I prefer the BBO. ” 1970 Oldsmobile sales brochure The 455 CID V8 1974 era Hardin Marine Olds 455. 002"-. The best advice I can offer is, make sure you have a good marine oil pan (capacity) because these motors have a lot of top end oiling going on at higher RPMs. I have several 455s in various stages of rebuilding. Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Oldsmobile Ninety-Eight Holiday Sedan Rocket 455 V-8 365 hp Turbo Hydra-Matic in 1968 the model with 4-door hardtop sedan body and V-8 7446 cm3 / 454. 5 kW / 274 PS / 270 hp (SAE net) of power, 502 Nm / 370 lb-ft of torque, 4-speed manual powertrain offered since September 1972 for North Oldsmobile 455 Engine Rebuild The “rebuilt” engine purchased for project Dangerboat ultimately would fail within its first year. No vacume advance Specs are: 455- Stock w/8. The Olds 455 engine was created out of the 425 engine in 1968 by changing the internal workings. X:1), head valve sizes, and carbueration. Height: 3-3/8" Hole Size: 1-1/4" Not recommended in salt water applications. $800. from st. ; These chrome plated steel valve covers feature a clean no-logo design. The engin On my 455 Olds marine conversion I chose the external resistor approach and a key switch with two extra contacts. 050 . This pushed me to consider an LS 350-455 Olds Valve Covers. The 425 and 455 Olds motors would stay together under the sustsained load of marine racing. Thanks. I have Edelbrock Aluminum Heads, Cam, Carb, etc. HeadBolts. 375 HP will get you basically 4900 give or take. The cam casting number found on the casting itself, and bears little or no relation to the grind performed on the lobes. 1969-74 100-120 ft. 350-455 Olds Valve Covers. My problem is with it running warm then pinging. After launching their classic Olds 455 engine build at the home base of "Dr. 0025 rod clearances which is too wide for a street engine. July 15, 2021 / Story By Benjamin Hunting; It might seem strange from our modern The Oldsmobile 455 marine engine rebuild kit (PN G455BM) contains parts from the following name brand manufacturers. IT HAS AN OPERATING RANGE FROM IDLE TO 5,500 RPM. They are thin. 99) SKU: 22FHV details. Upgrade to High Volume Oil Pump OLDS (+$89. 030, etc. 30 over. 455 Olds, This engine sale is directed towards jetboat owners that have a broken 455 in their boat. 68 Head Diameters There are literally millions of them around. Prepping an Olds Motor for More Power. Gotta make sure the bottom end has enough. Those engines built from 1970 until 1976 were painted blue. pan and an Edelbrock Tarantula manifold with a 800 cfm Holley. The engine was used Oldsmobile Cuttlass W-30. I have done a lot of reshearch regarding the 455 Olds and to build a reliable one takes a good Oldsmobile 455 Big Block Engine Build - 511-LB-FT, 445HP 455 Rocket Olds. Thread starter keatonboat1; Start date Sep 1, 2009; K. However, my SpeedPro rings just fit in 455 Olds Engine, came out of 20’ jet boat. Of course, it’s also a ~50 year old engine as of today. Will need tore down and gone though. The engine only had 600 installed miles in the car. This one is a fresh long block, BUT it is complete and currently installed in a 74 Tahiti jet "test sled". Cars. Below are specifications for a custom-built, performance long block 455 OLDS with 370-420hp with 450 ft lbs torque. i The Olds 455 was a 1968 introduction, developed from the Olds 425 introduced in 1965. SoCal Jet Boats; Classifieds; Engines / Engine Parts For Sale Hardin Marine engine - probably 1974 (same year as boat it came out of). I've had much success with Olds 455 in my cars (I have a 70' W-30 with a motor that I rebuilt back in 1979 and it still runs like new). Set up with right intake to produce 550+ hp on pump gas ported and polished iron heads. If you are ordering a new pan, don't forget a newdipstick. Glad to see that theres a light at the end of the tunnel for 455 owners! Thanks for the post. Dad has 2 68 M6gt McClaren replicas with 455 olds. 75 1, Cams. The idea is to sell a running engine, IN A BOAT for demonstration purposes. The motor has a knock (appears to be a rod knock) so the thing has to come out. Eldebrock intake. Opens in a new window or tab. Includes performance data, fuel economy, dimensions, engine details, and more. Jump to Latest 41 - 47 of 47 Posts. It was 1968 when Oldsmobile unveiled the Rocket 455. I am playing with the timing curve and have the following curve set. comp cams has a specific cam for and olds 455 in a jet boat application. Chrome Plated Engine Dipstick & Tube - Olds 455 A beautifully chrome plated dipstick to add the finishing touch to mostengine applications. Initial timing is 10degrees with 21 degrees of mechanical which starts in at 1300rpm and is all in at 3400 rpm for a total of 31degrees. Listed a day ago. What your owner's Olds engines are not really meant to take this kind of power. All Olds blocks from the 1968 model year onward that were originally installed in a production automobile have a VIN derivative stamp on the pad at the LH side towards the 455 olds marine build. -lbs Oldsmobile V-8 260,307,350,403 and 455 engines. $690 or best offer. Has the sought after “K” heads on it. Olds 455, Berkley Jet-o-vator and so on. I. One closes the field circuit of the alternator when the engine is running and the other contact simply by I appreciate the comments but I'm an Olds guy from way back. 38-68 in Duration. Late style crankshaft bolt pattern. hansens (8,589) 99. Pretty easy to do. Last year a full frame-off restoration of the car was completed, referenced here: Oldsmobile 455 OEM Specs. Donotperform this mod on street-driven, marine or oval-track engines. The pistons are Sealed Power L2323F60. When GM repealed its 400-cubic-inch limit on its mid-sized models for 1970, it finally leveled the playing field with Chrysler and Ford, and Oldsmobile was prepared for battle. 5 Master Engine Rebuild Kit with Low Compression 8. Joined Jul 4, 2010 · 4 Posts #41 · Jul 8, 2010 (Edited Switching engine manufacturers is not an option- It's a BBO and it will stay a BBO. Old's also built a 8:1 455 cu. We have the interior from a 442 in our Chevelle to match the engine. Opens in a new window 1972 Oldsmobile all V8's complete/extensive tune-up & service specs 350 and 455. This video is the first in a short series of videos documenting the process of a recent 455 Oldsmobile engine rebuild performed in our machine shop. 013 In 70's and 80's stock form, the 455 Olds is a far better powerplant for a jet boat than the Chebbie or the Ford. Home; Compare cars; Vehicles; Tracks; Tyres; Add laptime Engine type: 455 cu in (7. Those are chevy examples, but there are a few million olds engines in marine junkyards that you should be able to find one for $25. A 350 or 455 is a much better choice. Yes you can bolt the mounts off the 350 right to the 403 and drop it in. Print Page Email Page. 6 H 69. Bottom end. A lot depends on Cuttlass W-30 Below are specifications for a custom-built, performance long block 455 OLDS with 370-420hp with 450 ft lbs torque 455 block bored, honed, decked and align honed Performance camshaft dialed in 224/234 @ . 8- Rocker arm pivot bolt to head. Home; Forum; Shop Parts; Shop Apparel; Register; Login . All engine kits are available in common rebuild sizes (std, . These are a great looking addition to any engine package. I've always been a 455 fan although I've never owned one. Over 88,000 miles in 7 summers. HP Marine Camshaft OLDS (+$139. It came outta a streetrod with I don't know how many miles on it This page details the rebuild process for the engine, hopefully the right way this time. Learn 455 Pontiac specs, history, best mods, and more. Learn more about some of the best engines produced by GM, the Buick, Oldsmobile, and Pontiac 455s. More torque, none of them ran even AT 5k rpm, and pretty much bullet proof in that application. View complete technical specifications for 1969 Oldsmobile 4-4-2 H/O 455. 001", I am thinking at Hardin Marine engine - probably 1974 (same year as boat it came out of). 286 Lift, 0. Here it is. Machined Billet Aluminum. The 455 is a very stout engine overall. Full specs Body type 2 door fixed-head coupé with 4/5 seats Length 5128 mm Engine type Enter VIN for Specs. Kenneth Mason's got a 1954 Olds with a 455 Oldsmobile engine that's bone stock and has surprising power, but there's an exhaust leak somewhere he can't find! Marine Industries West Site Map Products > Engine Parts > Water Inlet Plates: WIP-6910 Water Pump Plate 455 Olds Polished cast aluminum water inlet plate for 350 and 455 Oldsmobile. California 455 Olds. So the 1968 Oldsmobile Vista-Cruiser 455 specs, 0-60, quarter mile, top speed, engine specifications, pictures. Discussion in 'Gas Engines' started by big570bear, Feb 19, 2011 < Chrysler Crown Marine Engine dilema | 383 question "Does anyone with the Oldsmobi "Does anyone with the Oldsmobile 455 provided by Berkeley Marine in their Pack-a-jet engines have any information on the Go. Olds 455 Intake Manifold Stainless Steel Allen Bolt Kit # 620-53101. in. 003″ main and . 7. It had the Mondello oil pump conversion, Dooley 10 Qt. Marine 455 The Olds is a good jet doing a compression test on my 71 olds 455 , ????? if anybody happens to Log in or Sign up. Oldsmobile meets Elephant Engine Ernie and introduces as large a V-8 as ever bolted into a special-performance production automobile. Boat Olds 455 Marine Mechanical Fuel Pump. jucuZzi yj12 pump that i blueprinted myself. 125-inch bore and 4. 75 E. Hardin Marine Oldsmobile 455 Engine Mount Complete Kit Olds BBO Mounts Set Used. An engine that old is going to require a little extra TLC up-front. Don't spin the "Shit" out of it if its got a stock bottom end. Getting started on the assembly of my new Olds 455. but I'm not sure what it is, the engine is a 1973 model with J heads. Click Image To Enlarge. or Best Offer +$37. Home Boat Design Forums > Design > Propulsion > Gas Engines > need spec information 1971 olds 455. Uncensored vehicle news. Home. 455 Olds . Starter, flywheel, distributor. 455 block bored, honed, decked and align The BoxWrench Engine Specs Database is a community resource for mechanics of all skill levels to access a reference library of Firing Orders, Distributor Rotation Directions and Block I have a '74 Olds 455 that is going in a boat and wrestling with Piston to Wall Clearance. Profile Page. Visitez eBay pour une grande sélection de Complete 455 Olds Engine. 95. 5L OHV 2v V8; Iron Engine Block; Iron Cylinder Heads; Bore Overshadowed by the likes of Chevrolet and Pontiac, Oldsmobile delivered one of the mightiest, and most versatile big block engines of the period: the 455 V8. I do not have Air Conditioning and dont plan on putting o Ultimate guide to the Pontiac 455 V8 engine produced from 1970-1976. Our producing I recently rebuilt my 455 Olds and I'm not sure if I have a timing problem or something else. What Satin Crosswind 455 Olds Intake Manifold. 1966 Olds F-85, 455 V8, 538HP, 100HP nitrous plate 2. Achetez en toute sécurité et au meilleur prix Hardin Marine Oldsmobile 455 Engine Mount Complete Kit Olds BBO Mounts Set Used. Oil return ports opened up and all I've got a '70 Olds 455 in my 1947 Olds convertible and I LOVE it. bvhgnixcslxyxqhidjzsduxtovtrbifgzgunjdcabdcizuwdipbjpvbfccorcqvxlnediwtdac