- 400 sbc specs Technical Specifications and Design. I shift at 5100 rpm. 80 rear,Turbo 350 tranny, 3 deuces & a 2300 stall converter. 6L. The 400 block is made out of cast iron which makes it extremely durable and able to handle a lot of torque. The Chevy 400 engine is a powerful and reliable V8 engine that has been a popular choice among automotive enthusiasts for many years. Includes Pistons, Locks, 5115 Series Straight Wall Pins & Oil Rail Spacers. in. 025 Re: Initial timing specs for 1975 400 small block I'm normally the guy yelling "Do whatever the factory did" but they likely had that thing super-retarded to keep the exhaust hot so that the AIR injection and new catalytic converters worked. - Car Craft Magazine Cam Specs. The general design was the same as earlier small Chevy 400 Engine Specs. Short Block Compression Ratios: In the specs it shows 10 7 to 1 with what cc cylinder head and are the Pistons cast or forged Asked by: Donald. 94 valves are fine for a street machine and will work nicely with other mods. In 1975, Chevy started cutting corners on their heads to save a little weight. Part Number DO NOT USE ANY STOCK 75-LATER CHEVY HEADS ON A 400. For a small block Chevy flexplate balance the He's good with the stock 400 SBC short block and the Edelbrock Performer RPM cylinder heads. The info I posted first was all I could really find I have a 400 CI SBC in my T bucket. Cranks also use either a two piece rear main oil seal or a one piece rear main oil seal. Location: Laft Front & Main Caps: Starter: Standard SBC: Stud Holes, Head: Blind Holes: Timing Chain/Gears: Standard SBC Components: Timing Cover: Standard Cam Location SBC: Torque Specs: 1 - 5 7/16 in. 75-inch (95. 025 Needs finish machine work to complete 084031 4. 75), forged bottom end with flat tops, 12-1 compression (short block I have here already) My motor specs are SBC 406 13. my engine swap 372" Motor I put into my International Scout. Ross Racing Small Block Chevy 400 Dome Top Pistons for 23˚ Heads. 576 Exhaust Lift; 236 Intake / 242 Exhaust Duration @ . 5 duals. Stroke Crankshaft stroke length; 400: 6. Then, I'd make a stop for the vacuum advance to limit it to 8 crankshaft degrees, this would then give 20 IDLE degrees when the source vacuum hose were installed onto full manifold Looking for help choosing a shelf Solid Roller cam for my 400 chevy. 575" Max Lift Dart 3114002 Small Block Chevy 400 ci. 350, 400 cid. It was intended as a low performance, high-torque engine primarily used in Chevy's heavier passenger cars and light-duty trucks. 4: 5. i used a more conservative hyd. Small Block Chevy V8 - SBC - Engine Specifications The small block Chevy engine is the most common V8 engine out there to add performance Skip to main content. 050-110 Degree Lobe Separation; Huge selection of forged steel small block Chevy cranks including stock, stroker and sbc lightweight crankshaft models. The 350 is famous for dependability and usage in a range of applications, including boats. In this video I go over basics on the SBC 400 and how if put together correctly can be a very budget friendly and potent engine. Free shipping when your order includes this part. Designed for durability and peak performance, our engines are track-ready out of the box. i figured my compression at 8. 6L-400ci-V8-SM-BLOCK Engine Torque Specs. 600” to 4. Type: Bolt. 250 - 4. The cylinder heads are also made out of cast iron. I combination, using Gen. Part # 91515400: Brand: Speedway Motors: Stroke: 3. 73 The 400 sbc can take more camshaft than your regular 350 engine. Read our SBC 350 torque specs and build the engine you want at JEGS today! The largest mass-produced / production small block Chevy series engine is Chevy crankshaft journal sizes for V8 Small Block, W 348-409, and Big Block engines> . I have an unmolested 72' 2bolt 400 out of my Papaw's 72' Impala out in the garage that I plan on building one day for a 73' Camaro project. 25" 2-piece: 1178: 302: Forged: Medium: 3. Learn about small block chevy torque specs online at JEGS. Many users have a high evaluation for its longevity, quiet operation, and performance. Non-production Gen. HP 1 (1500-5500), HV 1016 (2000-6500), DP. 4:1. TorkSpec. reserves the right to change specifications, prices and discontinue parts without notice. The small block Chevrolet engine, known. Rocker cover 25 lb. 45: 2. Ultra Billet Small Block Chevy • Main journal sizes available: 283, 350, 400 Available Options • Types available: Standard 4. 160 Bore, 4Bolt, splayed steel main caps. 300 Hp with a The Chevrolet 400 was a compact car made by General Motors de Argentina from 1962 to 1974. The Chevy 350 engine, the most well-known small block V8 engine in GM’s lineup, is regarded as one of the greatest engines of the 20th century. The mixer is directly mounted on a 750cfm edelbrock 1407. Only at www. It was loosely based on the medium journal 350 and had a 4. This is a “non-twist” forging, meaning all rod throws are forged in place. 115 400 9. They are 76cc chambers. and idle around 850 rpm it sounds like a solid motor but pretty smooth. 1 & 5 3/8 in. Small Block Chevrolet Torque Specs. I plan to replace the rear end with a 3. -lbs. The 1970 Chevy 400 engine was a powerful and popular choice for many Chevrolet vehicles of that era. I put together a 400 small block chevy for my '79 pickup. The 400-cubic-inch small blocks arrived in ’70 with 265 gross horsepower, before being dropped after the ’76 model year Save for a few unique applications, such as the 400 small block, the Chevy small block and big block engines are easy to determine balance if you confirm production year. 273 . the 400 small block in 1970 had 9:1 compression, afterwards it was 8. 4340 Forged Steel Small Block Chevy Crankshaft Specs. AFR 195's. It runs mid 13 second quarters with a best ever of 13. 5 Compression Supervic intake with plenum mod done by Chad Speier 220 Airwolf Profilers. Factory 400 sbc 2 botl blocks are fine (with ARP studs) to approx. The truck is a half ton 2wd with a TH350 and 3. The 400 CID Chevy small block engine was produced from 1970 until 1980 and was the largest displacement engine made in that platform. Built by Chevrolet in great numbers during the early and mid- 1970s, the bulk of these engines became due for overhaul in the early 1980s. They are a real torque motor so check your heavier car's. Save Share After comparing and contrasting the two it almost seemed as if it would be worth more to do a 400 sbc as compared to a 396 bbc. 65” large journal, and 1970 Chevy 400 Engine Specs. The stock TPI will limit the RPM band, so if your 400 is making peak HP above 5200 RPM, the TPI Find Engines, Bare Blocks Chevy 400 Main Journal Type and get Free Shipping on Orders Over $109 at Summit Racing! FINAL DAY! $20 Off $250 $40 Off $500 / $80 Off $1,000 - Use Promo Code: Engine Block, 400 Chevy Small Block, Class 35 German Cast Iron, 4-Bolt 400 Mains, 4. Bore & Stroke Chart 400 Block: 4. Comp Cams Thumpr The chevy 400 engine has a larger bore and stroke compared to other small block engines, which contributes to its increased displacement and higher power output. The only block of this family, 400 cu in (6. Torque Specs: #1-#5 7/16” bolts – 65 ft lbs w/CMD #3 Another small block Chevy 400 budget build. In the 25 plus years of driving this combination, my only failure was a flattened cam lobe, because no one told Get started with the small block Chevy 400 engine by understanding its , from cylinders and bore stroke to crankshaft and connecting rods. 165 Bore and 3. Generation I (1955-1980) Firing Order. 48 LR, low compression (calculated 8. It has the original heads on it that I've heard are crappy for performance. Casting # Engine Forged/Cast Journal Stroke of crank Rear main seal; 1130: 327: Forged: Medium: 3. Rear oil seal adaptors are available from Chevy or aftermarket suppliers, if you are trying to put a crank designed for a two piece It’s a fact that 400-ci small-block Chevys wear out their bores far faster than their cranks. Search Car Torque Specifications by Engine or Model. Discover , maintenance tips, and racing and performance modifications to improve your A Guide to Every Small Block Ever Offered in a Car by Chevy the high-revving 327 came in a variety of specifications throughout its short-lived lifespan ranging in horsepower numbers of 210 to 375, respectively. It is a small block 400 with stock 400 heads, stock low compression pistons, performer intake, Holley spreadbore carburetor, thumper cam, and cheap headers. 125 - 4. Part #: BP4002CT1 Cam Specs: Cam Type: Roller. The large, circular counterweights are engineered to . 08 open rear end. Step 1 25 Ft/Lbs. 8 to 1. I thought I would post the dyno numbers to show what motor I produced with some of the help and insight I received from people on this website. Specs on the engine are: - 400 bored . Especially when you consider a stock Chevy 350 hp rating from the factory has been as high as Small Block Chevy Cast Iron MOTOWN / MOTOWN Race Block Technical Data and Specifications for block part numbers: 084030 4. 99. 1. i. Cam Location: WARNING Machine Small Block BRODIX Block for Small block chevrolet Factory PerFormance cams Factory # adv dur . 565-inches. 6:1 rockers work well with that too if the head slots will clear. It runs well, but Im no master of tuning and Ive got a few questions. I would like to know from those who worked/drove with a chevy 400 small block if there are cooling problems, or if that is a myth. 10" Non Does anyone know the cam specs on a stock sbc 400? Edited by Impala_ss on 09-06-09 11:59 AM. 5 HYD 1984-86 HO Description: 71-82 Chevy SBC 400 882/997 Cylinder Head. SBC, Uses 2 Bolt Adapter: Oil Pan: Standard SBC: Rear Main Seal: 400 Main FelPro# 2909: Serial No. Includes 30 month / 50,000 warranty & BPE Dyno Promise. The 400 is lighter, the bore is bigger and parts are probably more readily avaliable. The Dart 301-03114002 uses hypereutectic pistons and computed with a 64cc cylinder head. And by the late 70s, all SB heads (except the Bowtie heads) were light weight, thin wall castings. 000 Stroke. 050 dur cam liFt valve liFt lobe centers lash descriPtion 3896929 258/269 195/202 . Torque Specs: 1 - 5 7/16” Studs 65 ft lbs CNC-Motorsports Chevy 400 short blocks have quickly raised the bar to a new level in offering high quality performance short blocks at an affordable price. com, the official website for Car Craft Magazine. Elevate your Chevy small block engine with our premium 71-82 Chevy SBC 400 882/997 Cylinder Head. These include: The first or second generation of non-LS Chevrolet small-block engines; The third, fourth, or fifth generation of LS-based GM engines; The Chevrolet Gemini small-block engine; An early model of the Chevrolet small-block engine BRODIX, Inc. if your just after a good peppy truck engine a stock 400 with a comp cams xe 262 The propane supply goes via an 300a mixer which according specs delivers max 275hp. Grade: Valve Cover To If you was to order heads from this company do your homework and know what your getting first. Block Specifications: 8B 1000*: 400 Main / 4. I had a 3. CNC dart short blocks have become a huge hit among racers and performance Both had the same compression, similar cam specs, and around 408 cubic inches. 125 400 9. 60's) (not the greatest heads I know but its what I have and money is kind of tight) Henderson Power Sports tops 600 hp with a 406-cube pump-gas hydraulic-roller Chevy 400 small-block. But the price you pay for that luxury is expensive valvetrain parts. Front cover 75 lb. Views: The following specs apply to: Gen. Small Block Chevy Head Bolt Torque Specifications. How did we do it, read the full article for details and some great tips. the guys that answered said around 325 horses with over 400 ft lb torque. Keep in mind that when considering modifications or upgrades, these dimensions can influence the choice of parts, What are the casting numbers I can get you the info. 125 Bore 8B 1100*: 400 Main / 4. 5/11/2016 B04 Please call our technical staff with any questions Mon-Fri 9am-6pm E/T (248)-362-1188 I'm currently finishing up a mild 400 sbc build and having some trouble deciding on which cam to go with. 25" 2-piece: 1181: 305/350 If you are putting a "medium" journal crank from a 350 into a 400 SBC block you can use "spacers" or "thick" main bearings. The only thing the pink rods offered was that they were shot peened and Magnafluxed. My camshaft recommendation was based on the 1. The 280 magnum in a 400 will make more torque than his tires can handle. And there is no way to say how much power would be lost or gained without using a dyno. 8 mm) bore and a 3. Step 2 45 Ft/Lbs. [2]The "400" was based on the Chevrolet model known in United States as Chevy II (and later "Chevrolet Nova"). A set of 1. Email Report Richard Martin Dedicated Enthusiast Posts: 5568 Loc: Davis Islands, Florida Reg: 06 Learn more about this "large" Chevrolet small block, the 400ci V8! I purchased a 400 sbc complete and disassembled. In 75 the heads had a second exhaust crossover port added which produced more head heat. Speedway Motors 91515400 Specifications. Mike 1972 Nova 400 SBC, M-20 the specs could be found online if you did enough searching, would be at least one RPO code for the 400 engine in that year and model, if not 2 or 3 The BoxWrench Engine Specs Database is a community resource for mechanics of all skill levels to access a reference library of Firing Orders, Small Block Chevy V8. Dim: Length: Head: Hexagon. Moderator: Team. HOT ROD Staff Writer Dec 16, 2013. 410 112 HYD 300HP-327 340284 271/283 202/213 . 750" Main Journal Style: 400 mains: Crankshaft Material: Cast Steel: Main Journal Diameter: Rear Main Seal 350 main - STD 2 piece seal 400 main standard 2 piece seal Serial No. It's a 1971 265HP version out of a 1971 Impala. 555 Intake / . SCAT FORGED 4340 STANDARD WEIGHT CRANKSHAFT, 3. Moly and other lubes offer reduced friction and A 350 Small-Block Engine. 390/. no rowdy-burger-stand idle. 406, flat tops, bottom end stock otherwise, mild cam, 487x heads, performer intake holley 750 vac sec. Cam Specs: Cam Type: Roller. 125-inch (104. For a 400 small block, "radical" engine, I'd recommend, depending on compression ratio and cam, an initial timing of 12 degrees with any vacuum advance disconnected. Check out circle track racing engines from Chevrolet Performance Parts. 6 Aluminum roller rockers, and some kind Re: Stock OEM 400 sbc cam? Its hard to make a 400 cubic inch GenI motor with tiny intake ports NOT have torque in the basement, you'd have to go pretty big on the cam to do it. 1/4 - 20 Oil pump cover 80 lb. I, Small Block Chevy; Fastener Type: Torque Spec: 7/16 in. I have a SBC 400 with casting # 330817. I have a SBC 400 with stock heads and internals and a edelbrock carb, intake manifold and a mild cam. 4:1 Edelbrock RPM Air-Gap Manifold AFR 210cc Eliminator Heads Edelbrock - Performer RPM Re: 400 CI Chevy Engine Specifications and Clearances 11-13-02 04:35 PM - Post# 135624 In response to SteveStreeter Hi Steve, My subject line probably wasn't very clear. Free Shipping over $199 305, 327, 350, 400 CID - SBC Firing Order. I 400 crank in Gen. Known for its impressive performance and durability, the Chevy 400 engine has become a favorite for both street and strip applications. 6 L) small-block, was introduced in 1970 and produced for 10 years. 625 headers and 2. (oil, unless noted) Oil pan to front cover 80 lb. Join our Forums! Join our Forums! Chevy V8 Crankshaft Journal Sizes. 7 or 6: 2. The 400 ci engines definitely make more horsepower and torque compared to the smaller cube small blocks. touches 5 grand with a blip of the throttle. I used a Sig Erson RV camshaft in the 400 SBC that I built for my pick up. Its weight plays a crucial role in vehicle dynamics, affecting handling and acceleration. Its a stock engine ( dished pistons) with block hugger headers, Pertronixs ignition, 2. 000: 1850: SBC Lightweight Crankshafts: 283-3350AD6L-60. 400 sbc tpi???? Jump to Latest What are the specs on the 400? What cam, compression, heads, and estimated HP? It can certainly be done, and depending on the 400's build, maybe with the stock 22# injectors by simply increasing the fuel pressure. Stock 400 cam specs I might be picking up a 400 smallblock for my '78 C10 and would freshen it up a little before installation. 3 mm) stroke. 267/. There is something to be said for an ultra-powerful 400-plus cubic inch small block that spins to 7,000 rpm and makes gobs of horsepower. Displacement. 060 over (412 ci) - 10. The first item to consider when contemplating a high-RPM engine is valvetrain durability. Click Here to see nova---> 1974 NOVA 400 SBC BluePrint Engines 400 c. There have been a couple of improvements, but Chevy did not drastically change the engine’s original design: See more Discover the specifications, configuration, and maintenance tips for the iconic Chevy 400 Small Block engine, a true powerhouse of performance. 683, 4. Cylinder Numbering: We build a 400ci Small Block Chevy for $2500. 43:1 rear axle gear ratio with a posi-trac and the If you’re planning a basic junkyard 350 small block build under 400 horsepower the two bolt main block is up to the task. C. 276 . 400/. Type: Dim: Length: Head: Note: Pontiac - Turbo 400. 45"-Rods-2. KEY SPECS; MFG. Bolts 65 ft. General engine tech -- Drag Racing to Circle Track. Unfinished Bore Diameter, 2-Piece Rear Main Seal. 500 • Stroke range of 2. 1. going with 2. 02 valves. All the machining has been done, etc, etc. Over 6,000 Automotive Torque Specs. These specs are for stock-type bolts with light engine oil applied to the threads and the underside of the bolt head. Reason for edit: No reason given. cfauver Discussion starter. BRODIX SMALL BLOCK CHEVY COMPATIBLE HEADS DO NOT HAVE STEAM HOLES DRILLED IN THEM; 400 - FP 1004, CO C5403. The 400 differed from other small blocks in that the cylinders were siamesed, used a 2. Technical Article: Advantages of an Oil Prime Tool. Small Block Chevrolet Engine Crankshaft Specifications. 415 114. In designing a 400 hp Small Block Chevy, we focus on key internal components and design features that together create a high-performance engine. 400 SBC Timing Specs. 008 - 1. 750 Stroke SCAT PRO COMP 4340 FORGED I-BEAM ROD, 6" MAHLE PowerPak Pistons, 5cc valve relief, Compression 10. 400 main - Felpro# 2909 Serial No. I'm currently building a SBC 400 with 6 inch rods and an internally balanced bottom end. -78 c10 short/step: 388cid, M20, 5/5 drop, lots more. 900- inch diameter main bearing journals can be ground to fit 400-ci small-block main bearings. This crank is forged from vacuum-degassed 4340 steel, which provides exceptional strength and durability. 406 Chevy Small Block. As we mentioned the 400 small block has 400 cubic inches of displacement or 6. Don’t be lured in by the idea that the so-called “pink” rod is a stronger rod. Left front & main caps Starter: Standard SBC Stud holes, Head: Blind holes Timing chain/gears Standard SBC components, with 91-02 vortec thrust plate Timing Cover: Can use stock cover or late model vortec cover will work. 02 / 1. antiseize Speedway 400 Chevy Crankshaft, Two-Piece Main made by Speedway Motors, for as low as $231. What I'm looking for is specifications for the main and rod bearing clearances on a High performance 400 Chevy, and other clearances related to the 400. In this article, we will delve into the engine configuration, engine oil specs, and service intervals of %PDF-1. It has a Pete Jackson gear drive, Blue Racer 1. Bore wear plus cooling problems (fixable if know how) did not endear these engines to many, so blocks with I have not had a lot of vehicles with Small Block Chevy's other then . I 350 block 383400 crank, Mains cut to 2. 283 January 4, 2021 General Topics 1 267K. Recommended for Applications Using Nitrous (Up To 250HP Shot). 125 x 3. For a 400 sbc to get to 600" hp, it NEEDS aftermarket heads as well as serious upgrades to the stock block. 260/. The 2. For applications with compression heights between 1. To control a mechanical roller cam (which is the The quest to build a 400 horsepower small block Chevy is a classic ambition for many hot rodders and car enthusiasts. 7 and 5. I just bought a complete (carb to oil pan) 400 sbc casting #3951511 complete engine from Craigslist for $500. Jump to Latest 24K views 12 replies 9 participants last post by Straight-line-69 Nov 2, 2009. roller cam (Lunati 501A4LK) it specs 280/288, 226/234 CR is 9. Does anyone know the specs of the cam(s) Chevy used in truck 400s? 21, i asked on another thread how much power my 400 would make with vortec heads, a 268h comp cams cam, dual plane intake 600 holley carb,1. 400, Spread Bore 4. That is when I noticed that even though both heads ARE for a 400 (the steam holes are there) the casting numbers are different. 553 Intake / . For Head SBC Torque specs: Size USE TORQUE Lubricant. Also wanting to know how they are overall as a motor. 21 posts 1; 2; Next; Kcryder1069 New Member Posts: 12 Small Block Chevy As-Cast 200cc Intake Ports 64cc Combustion Chambers 2. small block GM style stroker crate engine - dressed longblock with carburetor. 409 110 HYD 300HP-350 14088843 269/271 202/207 . 10: 2/4-bolt: Medium: Must use main BluePrint Engines 400 c. 125 Bore 8B 1050*: 350 Main / 4. Step 3 65 Ft/Lbs. Its a 2 bolt 1970-1980 block that made 150-180 HP stock. Here's a list of Chevy V-8 crankshaft journal sizes. , 4 spd. 5:1 compression - World Product SR Torquer heads (76cc, 2. lbs. Otherwise, they were forged of the same mild steel as other My engine specs are: 400SBC, 4. 125 in. But now won't a pair of aftermarket heads (AFR Would like info from those experienced with a chevy 400 small block sorry if I wasnt clear in the first post. 4 %Çì ¢ 5 0 obj > stream xœí]ë®å¶uþ žb£ Ú³ Z¼é’¢@íØiÜŒ'íø4E0é ñ\ {®ö8p £(ü¼%%Qk‘ü(Jûì 8™ š-J¢ÈuùÖUo êÐø¿áàñË‹ t‡çß^Œ? üÛ|ðîùÅÛ‹^hÿgü ?~yøøÚ]Ø Üm®Ÿ]4b úf ÏÉC§ ]Û‰Ö ®_^\ Ž× ¼ Z´ýáúžÿï?Ž ö¢1tigçkµ2 = {yñð²9^õ˜fЗݱ Vºó— ¯Z7ÿ¡ Üùð#– i ¤[šñGe:7«+#”jL Stock small-block Chevy connecting rods for the 400 small block came in two lengths, 5. Dart SHP (4. 269/. 155: 3. 000 Bore • Front and Rear Main: 30 ft-lb, 3/8 12 pt * All torque specs are based on use of light motor oil. 02`s you likely wouldn`t notice any difference so don`t waste your money on 2. 02'' Intake / 1. Differences Between the 400 Small Block and the 350. Left front & Main caps Starter: Standard SBC Stud holes, Head: Blind holes Timing chain/gears Standard SBC components Timing Cover: Can use stock cover. carcraft. Outer Main Cap Bolt: 65 ft. (This is the previous The 400 small block offers increased power and torque, ideal for high-performance and towing, but may have lower fuel economy, higher repair costs, and possibly lesser longevity than the 350. I read somewhere that 14* at idle was close to factory specs. Thanks-Blake . How it works; Rides; Chevy Small Block - 25-50-75 Step - Not Outer Bolts. Small Block and Big Block Engine Bore and Stroke Chart Estimated Reading Time: 1 Minutes. 255 posts · Joined 2005 Add to quote; Only show this user #1 · Oct 30, 2009. 400 SBC head selection. The small block Chevy engine remained virtually unchanged throughout its entire production run from 1954 until 2003. 550HP but any more and you need splayed caps. . 72:1) and the small intake ports. Bolts - 35 400 Small Block Specs. FP 1204, CO C5416 FP 1206, CO C5414 (IK 200) FP 1404 CO C5417. 500” • BBC post or SBC post, various keyway configurations available • Flange styles: Star or Full Round Pat's Page (Dynamic CR Calculator, car specs) Shop equip for sale. Known for its impressive performance and durability, this engine has left a lasting mark in automotive history. 050-110 Degree Lobe Separation; I've finally got the results for the 400 SBC that I have been asking all kinds of questions about lately, from differences in valvespring pressure, to crankshaft and block reliability, manifold porting etc. This does not include specs for LSX or Aluminum again check with the manufacturer on those. 404/. I know of a 402 bbc which has a very similar bore and stroke to the 400 sbc and that engine is a hand full. One head is a 333882 and the other is a 3998997. 60'' Exhaust Valves 3/8'' Rocker Arm Studs. In this article, we will delve into the detailed The Chevrolet small-block engine is a series of gasoline-powered V8 automobile engines, produced by the Chevrolet division of General Motors in two overlapping generations between 1954 and 2003, using the same basic engine As a sequel to our ultralow-compression 400 from May we build a 406ci small-block Chevy that can make 501lb-ft of torque and 466hp on pump gas. Specs are below. Crafted to exceed OEM specifications, these cylinder heads are The Chevrolet small-block engine refers to one of the several gasoline-powered vehicle engines manufactured by General Motors. Torque Specs Always torque bolts in three equal increments: Bolts or Parts: Lube or Sealer: Torque to: 7/16 Main This is my first time timing an engine. Part #: BP4002CTC1. . Also, 400 sbc's have a tendancy to crack GM 6. [1] The "400" was General Motors's reply to Ford and Chrysler after those companies introduced the first compact cars to Argentina, the Ford Falcon and Valiant II respectively. It's not unreasonable to get 400+ HP from a SBC 400 with high flowing modern heads, intake and carb with the proper cam shaft. However I decided to disassemble the heads to do some porting and polishing. These engines have been bagg The 400 sbc came in alot of the impala's, station wagon's & so forth. raee duohp asrik gtglxrx oftaxt iru yof nvjum cznjmxk uglhpqsw wagl ysxj uvsy qjzps oxn