Chevy 366

Nov 28, 2009. #11. surfer-joe said: The 366 was a good motor, lots of low end torque and they are not near as bad as a 370 Ford on fuel consumption. I always found their fuel and ignition systems less tempermental than a Ford. Instead of an overhaul you might look into a crate engine from a Chev or GMC dealer.

Chevy engineers did a great job using the same parts on many different engine combinations. The 366, 396, 402, 427, and 427 tall deck engines all used the 3.76-inch stroke crankshaft. The 454 and 502 use the 4.00-inch stroke crankshaft. The 496 Gen VII and the 572 Gen VI use a 4.375-inch stroke crankshaft.Jan 6, 2021 · Chassis: Chevrolet B-Series. Engine: 366 V-8. Chevy 366: Thoughts on Throttle Body Injection. I have a Gillig-bodied '67 Chevrolet chassis with a 366 motor. It's fitting with a Holley 4150. I am not looking for power gains, just good drivability with minimal fussing. What intrigues me about throttle body injection (TBI) is good performance in ... Car shoppers, take note: The Chevy Volt has received a $4,400 price cut amid low sales and a new model. By clicking "TRY IT", I agree to receive newsletters and promotions from Mon...The deck height is 10.2 inches instead of 9.8 to compensate for an extra piston ring, the crank and rods on the 427T are the same as a 427, the crank is the same stroke on a 427t as a 396 and 427 but the second counterweightis a little larger. The heads are interchangeable but the intakes on the 366T and 427T are wider to compensate for … The 366 Chevy Big Block engine uses unleaded regular fuel. Fuel is delivered to the engine with a sequential multi-port fuel system. My old grain truck w/366 gas wouldn't pull the hat off your head, so new carb, new plugs, new module in distributor, new dist cap, changed timing closer to 12degrees BTDC, now wont't start. Tried 20 to 22 degrees BTDC same thing. ... 18436572 is the firing order for a V-8 chevy. If it runs and you are pointing at #2, then you are on the ...1977 chevy: starter solenoid..a R and a S terminal are..wiring diagram…. On a 1977 chevy C65 with 366 engine the starter solenoid has a R and a S terminal are both used. If possible wiring diagram. The s terminal is used for starter operation -purple wire,the other is for the ignition by pass to the distributor. Gm 366 Engine Assembly - Rebuilt | P/N 4073. REBUILT - Lb gm 6.0 (366 cid) vin b (68 - 90) V8 ohv gm med duty, Gen iv, 2 pc r. Seal must verify with or wit... Warranty: Vendor. Item:TR 4073. Please Call. Shop our inventory of rebuilt GM 366 Engine Assemblies at unbeatable prices. Enjoy our hassle-free online checkout or call to speak to an expert.

The firing order 1-8-4-3-6-5-7-2 applies to engines like the 366 Chevy, 396 Chevy, 402 Chevy, 427 Chevy, 454 Chevy, and 502 Chevy. This firing sequence ensures that the spark plugs ignite in the correct order, maximizing engine performance. When the piston is at Top Dead Center on the compression stroke, the distributor’s blade should align ...The 366 was a good rental truck engine, but if you had to have a gasser, the 427 was a much better choice. They started using the 'Vortec' 454 instead of the old 366 and 427 starting in 1998 or so, and those pump out about 270 h.p. in medium duty trim, which ain't bad for a gasser. The local municipality loves them. D.The 366T bore is 3.935 the 454 bore is 4.250 a difference of .315 the 388T block will only accept a .125 over bore. So you can’t get there from here. Additionally there is a difference in stroke of .24 inch 3.76 versus 4.00 with the same length con rod of 6.135 inch. Therefore the stroke difference has to be made up in the piston pin location ...1/4" INSULATED HOLLEY CARBURETOR BASE GASKET CHEVY TRUCK 366 427 FORD 390 460ENG. Opens in a new window or tab. New (Other) $14.25. Save up to 10% when you buy more. Buy It Now. graygracy (49,404) 96.4%. Free shipping. New 4 Barrel for Holley Model Carburetor 600CFM Street Warrior 0-80457S Polished.big block chevy valve adjustment trouble,no compression. i just put new headgaskets and vakve job on a 366 big block truck motor.i adjusted the valves with engine off.i made sure they were on the base circle then sping the pushrod until it drags then tighten 1\2 turn.when i set them this way it holds the valves open and i have no compression.if ...

This MABBCO® Master Engine Kit is for a GM Chevy 366 6.0 motor, model years 1985 through 1990. This engine is commonly know as an "early model 366" and is identifiable by it's 2pc rear main seal and dome top piston. Each kit is custom assembled using parts based on your engine’s requirements.366 tall deck block is usefull for 1 thing IMO and that is to rob the steel crank and the steel 4 bolt caps. Well if it is running it makes something deccent to move things around but I wouldnt ever put omoney into one. a 366 is a 3.76" stroke. just like the 396 402 427 and a tall deck 427 a 454 is a 4" stroke. The experts at Speedway Motors have carefully curated a selection of the best Oil Pans for Big Block Chevy 366 - backed by our industry leading expert support and decades of experience. With 3 Big Block Chevy 366 Oil Pans for sale, and a variety of options available, you're sure to find the ideal custom or universal Oil Pans for your needs. Before you is Chevrolet’s Mark IV big block, which was introduced in 1965 with 396 cubic inches. There was also the lesser-known 366 back in the day, which was …APDTY 785273 Exhaust Manifold Left Side Select 366 or 427 Big Block Engine (For: Chevrolet) Premium Quality Materials For Long Trouble Free Life. Brand New. $193.39. autopartsdirect2you (125,824) 97.9%. Buy It Now. Free shipping. 1965 1990 366 427 GMC CHEVY BIG BLOCK ENGINE EXHAUST MANIFOLD 14045184.A 383 is a 4" bore 350 block, with a 3.75" 400 crank. The 366 already has a 3.75" stroke, and the bore only needs .065" taken out to make an even 4". A cheap small block 350 piston could even be used in the 366. A 6" rod 350 uses a 1.260" pin height.

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The GMC 366 is a 6.0 liter, V8, long block engine. The bore is 4.0 mm and the stroke is 3.6 mm. The compression ration is 9.6:1. There are 16 valves with an OHV configuration and three compression rings on the pistons. There is a chain driven cam on this engine. The gas fuel delivery is sequential electronic fuel injection (SEFI). Find CHEVROLET 6.0L/366 Camshaft Kits and get Free Shipping on Orders Over $109 at Summit Racing! Use your Summit Racing SpeedCard today, and get up to 10% back - Get Details! ... Hydraulic Flat Tappet, Adv. Duration 288/304, Lift .570/.575 in., Chevy, Big Block. Part Number: CCA-K11-244-4. Not Yet Reviewed. Estimated Ship Date: May 15, 2024 if ...hi gm truck club! i'm looking for some technical information on a 1991 gmc topkick with a 366 truck block with tbi fuel injection. it is actually a tow truck, 17 or 19' rollback. it belongs to a friend of mine whom i do side work for. he was on his way back to the shop when the engine overspeed light came on, and the truck sputtered to a stop.Fahlin Racing wrote: Recently after visiting a friend at his truck shop I see he has a couple 366 Chevrolet BBs laying around. I was wondering if these could be transformed into a decent powerplant. Since most people have never heard of a BBC 366, that might suggest their potential. Please help make Speedtalk a Troll free zone.hi gm truck club! i'm looking for some technical information on a 1991 gmc topkick with a 366 truck block with tbi fuel injection. it is actually a tow truck, 17 or 19' rollback. it belongs to a friend of mine whom i do side work for. he was on his way back to the shop when the engine overspeed light came on, and the truck sputtered to a stop.

Step 1:Inspect Bearings. The bearings tell a lot about what your engine has been through. With normal wear, the bearing wear should be fairly uniform from front to rear. Uniform brass material exposed is common, but these bearing shells show brass spots, which are from debris trapped under bearings before assembly.Aug 22, 2012. #1. The engines are good. The fuel injected is a lot. better than the carb version but almost all 366's. whether it's in the bigger trucks or the 6.0 litre. in the pick ups, seem to have a problem with the. right side exhaust manifold cracking. I have a 366.8409 posts · Joined 2012. #5 · Mar 21, 2016. BBC heads come in rectangular port, oval port, and truck small 'peanut' oval ports... the 366 is a truck only engine, so surprised it would have heads with bigger ports than a 454 engine... sounds like some previous swapping of heads has occurred... even the peanut ports are big compared to …Car shoppers, take note: The Chevy Volt has received a $4,400 price cut amid low sales and a new model. By clicking "TRY IT", I agree to receive newsletters and promotions from Mon...We need more information about your vehicle to confirm fit. Year Make Model Trim Engine. Finish adding vehicle. CHEVY LS 6.2L 510-625hp COMPLETE CRATE ENGINE PRO-BUILT 366 370 LQ LS2 LS6 Ls3. New (Other) $10,200.00. hrc2002 …Find CHEVROLET 6.0L/366 Chevy big block Mark IV Flywheels and get Free Shipping on Orders Over $109 at Summit Racing!Fuel Pump for Chevy 366 396 402 427 454 502 Mechanical Big Block M4530. Opens in a new window or tab. Brand New. $24.99. asucarparts (5,996) 99%. or Best Offer. Free shipping. Free returns. 47 sold. Fel Pro Engine Overhaul Gasket Set 1965-1979 Chevy Big Block 454 427 402 396 366.Oil Filter, Canister, 13/16-16 in. Thread Size, Buick, Cadillac, Chevy, GMC, Each. Estimated Ship Date: Jul 31, 2024 (if ordered today) Jumpstart Your Next Project! Find CHEVROLET 6.0L/366 Oil Filters and get Free Shipping on Orders Over $109 at Summit Racing!DeWitts Pro-Series Radiator Modules 32-4139018M. Radiator and Dual Fan, Direct-Fit, Aluminum, Natural, 2-Row, Crossflow, Chevy, Each. Part Number: DWR-4139018M. Not Yet Reviewed. Estimated Ship Date: May 15, 2024 (if ordered today) Free Shipping. Special Order. Add To Cart.Big Block Chevy Torque Specs. The following specs apply to: Gen IV, Big Block Chevy. Mark V, Big Block Chevy. Fastener Type. Torque Specs. Main Cap Bolt (396-427, 2-Bolt) 95 ft.-lbs. Main Cap Bolt (396-454, 4-Bolt, Inner and Outer)22 May 2020 ... Man I love the sound of a 366 big block! #chevy #farmlife #Merica.The firing order 1-8-4-3-6-5-7-2 applies to engines like the 366 Chevy, 396 Chevy, 402 Chevy, 427 Chevy, 454 Chevy, and 502 Chevy. This firing sequence ensures that the spark plugs ignite in the correct order, maximizing engine performance. When the piston is at Top Dead Center on the compression stroke, the distributor’s blade should align ...

big block chevy valve adjustment trouble,no compression. i just put new headgaskets and vakve job on a 366 big block truck motor.i adjusted the valves with engine off.i made sure they were on the base circle then sping the pushrod until it drags then tighten 1\2 turn.when i set them this way it holds the valves open and i have no compression.if ...

Find CHEVROLET 6.0L/366 Oil Pumps High-volume Oil Pump Volume and get Free Shipping on Orders Over $109 at Summit Racing! ... High-Volume, Standard Pressure, Chevy ...Flowkooler's 1684 pump fits the 1969-1980 Big Blocks. It has a CNC machined billet impeller designed with an increased vane count and a reduced impeller clearance to achieve greater flow rates, higher head pressure and a more efficient flow than other OEM water pumps. Type II Class II military grade anodize surface coating.CHEVROLET 6.0L/366 Chevy big block Mark IV Intake Manifolds, Carbureted. Filter by Availability Filter Results Filter by Vehicle Individual Parts. Part Groups. Results 1 - 15 of 15 25 Records Per Page Default Sort . Weiand Track Warrior Intake Manifolds 7622. Weiand Track Warrior Intake Manifolds 7622 ...Find CHEVROLET 6.0L/366 Valve Covers & Dress-Up Kits and get Free Shipping on Orders Over $109 at Summit Racing! Use your Summit Racing SpeedCard today, and get up to 10% back - Get Details! Vehicle/Engine Search Vehicle/Engine Search Make/Model SearchFind CHEVROLET 6.0L/366 Exhaust Manifolds Right Exhaust Manifold Location and get Free Shipping on Orders Over $109 at Summit Racing! ... Chevy, GMC, 6.0L, 7.0L, Passenger Side, Each. Part Number: RNB-674-163. Not Yet Reviewed. Estimated Ship Date: Today. Free Shipping...Loading Estimated Ship Date: Today. Free Shipping; ATP …Sep 18, 2015 · Subject: chevy 366 problems. ks. Have a '73 C-65 with a 366 engine. Was having problems with the hei distributor. Replaced it and was having it re-timed. Was driving it home and it run fine. Until it shut down like you turned the key off. Coasted into the driveway. Tried to start it, and it acted like the starter was locked up. Car shoppers, take note: The Chevy Volt has received a $4,400 price cut amid low sales and a new model. By clicking "TRY IT", I agree to receive newsletters and promotions from Mon... Since 1952, Speedway Motors has been committed to providing a broad selection of high-quality, affordable Starters for Big Block Chevy 366 - in stock and ready to ship to your doorstep. With 4 Big Block Chevy 366 Starters for sale, and a variety of options available, you're sure to find the ideal custom or universal Starters for your application. CHEVROLET 6.0L/366 Valves. Part Type: Valves. Engine Size: 6.0L/366. Individual Parts. Part Groups. In-Store Pickup Location. Results 1 - 13 of 13. 25 Records Per Page Default Sort.Chevrolet is an American icon, known for the Camaro, Corvette, Malibu, Impala and more. Take this quiz to see if you can recognize the most memorable '70s Chevys! Advertisement Adv...

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1/4" INSULATED HOLLEY CARBURETOR BASE GASKET CHEVY TRUCK 366 427 FORD 390 460ENG. Opens in a new window or tab. New (Other) $14.25. Save up to 10% when you buy more.The Chevrolet 366 engine has been a long-lasting design in Chevy's lineup of trucks. According to the Truck Trend website, this big-block engine comes standard in the Chevy Silverado 2500 and 3500 models. It has more torque and horsepower than 10-cylinder engines made by both Ford and Dodge and is rated highly by ...The firing order works for the following Big Block Chevy Engines -. 366 Chevy. 396 Chevy. 402 Chevy (Sometimes referred to as a 396) 427 Chevy. 454 Chevy. 502 Chevy. Also remember that the position of the spark plug wires does not matter AS LONG AS THE ORDER IS MAINTAINED! If you need to rotate the cap for any reason don't worry about pulling ...ACDelco Conventional Resistor Spark Plugs 19354432. Spark Plug, Conventional Resistor, Nickel Alloy Tip, Tapered Seat, 14mm Thread, Each. Part Number: ADO-R44T. ( 20 ) In Stock (more than 16 available) Estimated Ship Date: Today. Mfr. Rebate. $3.79.1989 CHEVROLET MEDIUM DUTY TRUCK 6.0L 366cid V8 Tune-Up Kit | RockAuto.I have a silver diamond truck head with big valves and roller rockers.I am looking for around 340 to 360 cubic inch motor that is on a budget.I was going to bore it to 3 15/16 and wondering what is a good reliable piston. I was told a chevy 366 piston works good ,but not sure.The medium truck 366-427 actually has a cylinder block that is about 3/8-1/2 inch taller from crank center line to the deck surface so they could use taller 4 ring pistons for longer life. With the deck being taller, the heads and intake manifold sit higher than they would on a passenger car or pickup low deck block.21 Dec 2016 ... Comments26 · 427 BBC Tall Deck Engine Intro · 1976 Gmc c60 big block walk around · 5 Speed 350 Chevy towing 11,000 pounds! ….

The LC8 version of the Vortec 6.0 engine is designed to run on either gasoline, liquified petroleum gas (LPG), and compressed natural gas (CNG) fuels. Compared with gasoline, both the LPG and CNG versions make less horsepower and torque. The compression ratio is 9.7:1, and the LC8 uses an iron block and aluminum head.Step 2: Test Valveseat Seal. Most likely your machine shop used lapping compound to confirm the quality of the valve seats. Clean the seat and valve of possible leftover lapping compound. Apply a thin coat of layout dye to the valve faces and seats and let it dry.It seems to me the 427T had the dowel and 366 did not. If the engine is together With the transmission, a 366 had a normal truck bell housing whereas the 427T had an adaptor for the dual disc clutch and HD tranny. Concerning the damper and pulley set-up, 366 had cast one piece units too. Just memories of an old fart who used to be a …When it comes to buying a new or used Chevy vehicle, finding a reliable and trustworthy dealership is key. With so many options available, it’s important to know what to look for i...Apr 24, 2017 · 1. Can a 366 make at least decent power (i.e. 350+hp and torque) 2. Can a 366 fit in a standard c-10, being that it's a tall-deck engine and all. 3. Is there any way to change is from a tall-deck, and if so, how and is it fairly easy. 4. Mar 23, 2016. #1. Interested in what weight oil you guys would recommend for a 1980 Chevrolet 366 gas engine. Gross vehicle weight about 26,000 lbs. Oils have changed so much over time I didn't know if the owners manual would actually recommend the best oil from what was available today. I do not operate the truck in the winter.CHEVROLET 6.0L/366 Harmonic Balancers. Filter by Availability Filter Results Filter by Vehicle ... Chevy, Big Block, Each. Part Number: MRG-946G. Not Yet Reviewed. Estimated Ship Date: Tomorrow...Loading Estimated Ship Date: Tomorrow. 1 Page 1 of 1 Modal Header. ×. Call To Order. This is a custom order part. ...The Chevrolet 366 engine has been a long-lasting design in Chevy's lineup of trucks. According to the Truck Trend website, this big-block engine comes standard in the Chevy Silverado 2500 and 3500 models. It has more torque and horsepower than 10-cylinder engines made by both Ford and Dodge and is rated highly by ...Jan 20, 2004 · The 366 was made for work trucks where low speed torque was needed, these engines are famous for burning a hole in the pistons due to high cylinder heat from such a small bore and a long stroke. You may need to remove the starter motor from you Chevy pickup if it is grinding or dragging, in order to test it. The starter motor is located on the passenger side of the truck, ... Chevy 366, Subject: RE: Carberator for chevy 366? Hagen Brothers farms,Goodrich ND. Use this chart in the link to read engine size in cubic inches X the max rpm you will turn the engine. The factory Holley on a 366 I believe was a 600cfm,but by the chart ,450-500 cfm is plenty for a good power band with good low end torque and fuel economy., Before you is Chevrolet’s Mark IV big block, which was introduced in 1965 with 396 cubic inches. There was also the lesser-known 366 back in the day, which was …, Find CHEVROLET 6.0L/366 Water Pumps and get Free Shipping on Orders Over $109 at Summit Racing! $5 Off Your $100 Mobile App Purchase - Get the App., Core Return: Free core return freight within the lower 48 states. Applications. Chevrolet medium duty trucks and busses. OEM / Part Numbers., 23 Feb 2009 ... Anyone had any expieriences with these? Click to expand... Man thats almost old skool. If I remember right its a big block chevy. I knew a ..., The Goodyear 400 starts at 3 p.m. ET at Darlington Raceway in Darlington, South Carolina. The Goodyear 400 is 293 laps around the 1.366-mile track for a total of 400.24 miles. …, RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. , 18 Jan 2009 ... ... 366 big block chevy in my 1989 gmc suburban. i have adapted the tbi to work with this motor. it is backed by a 700r4 and np241. best in town ..., The 366 Chevy Big Block engine uses unleaded regular fuel. Fuel is delivered to the engine with a sequential multi-port fuel system. , If you find a 383 SBC isn't durable enough for you, then it was built with crap parts. The 366 has a tiny bore of only 3.905", smaller than even a 350 small block, and almost as small as a 307 small block has; combined with a 3.75" stroke, same stroke length as a 383 or 499 SBC. Walls are too thin to even bore to take a standard bore 396 piston ..., Find CHEVROLET 6.0L/366 Exhaust Manifolds Right Exhaust Manifold Location and get Free Shipping on Orders Over $109 at Summit Racing! ... Chevy, GMC, 6.0L, 7.0L, Passenger Side, Each. Part Number: RNB-674-163. Not Yet Reviewed. Estimated Ship Date: Today. Free Shipping...Loading Estimated Ship Date: Today. Free Shipping; ATP …, Find CHEVROLET 6.0L/366 Valve Covers & Dress-Up Kits and get Free Shipping on Orders Over $109 at Summit Racing! Use your Summit Racing SpeedCard today, and get up to 10% back - Get Details! ... PCV, Rubber, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each. Part Number: SMP-GV16. Not Yet Reviewed. Estimated Ship Date: Jun …, recently purchased a 68 C60 with a 427 2barrel carb. and it is kind of tired but i have a 86 Chevy school bus with a 366 4 barrel and plan to switch the engines out. The …, 3 Nov 2022 ... Runs slow. You cannot drive a 366 at more than its maximum RPM, or you will be putting more stress on its crankshafts and pistons. The 366 is ..., Year: 1985. Coachwork: blue bird. Chassis: gm. Engine: 366. Rated Cap: 25. 1985 chevy 366 replaced with a 1984 454 out of an rv. so my 1985 chevy 366 does have a thrown rod. ive been looking for a replacement 366 but havent had much luck. ive thought about rebuilding the one i have. but today i came across a 1984 chevy 454 thats still in …, 14 Mar 2013 ... 366 to a 454 swap in 96 gmc topkick 7500 ... Will the 366 big block run??? Coy•3.3K views · 14:20 ... 94 Chevy 454 engine swap: Driving the truck!, 366: Chevy, GMC, tall truck: 6272177: 1972: 402: 210: 6272181: 1973-76 : 427: tall truck: 1401544 : 1975-87 : 454: truck: What Is A Casting Number? When purchasing and installing new parts in their engine, car owners must have a thorough understanding of casting numbers. These engraved digits, which are frequently visible …, Shop 366 Chevy Big Block V8 Parts and get Free Shipping on orders over $149 at Speedway Motors, the Racing and Rodding Specialists. 366 Chevy Big Block V8 Parts in-stock with same-day shipping. , 1975 CHEVROLET MEDIUM DUTY TRUCK 6.0L 366cid V8 Oil Filter | RockAuto. , The 366, 396, 402, 427, and 427 tall deck engines all used the 3.76-inch stroke crankshaft. The 454 and 502 use the 4.00-inch stroke crankshaft. The 496 Gen VII and the 572 Gen VI use a 4.375-inch stroke …, The 366 Big block V-8 (6.0 L) gasoline engine was used only in Chevrolet Medium duty trucks and in school buses. It had a bore of 3.935" and a stroke of 3.76..., Find CHEVROLET 6.0L/366 Chevy big block Mark IV Parts and Accessories and get Free Shipping on Orders Over $109 at Summit Racing! $5 Off Your $100 Mobile App Purchase - Get the App Vehicle/Engine Search Vehicle/Engine Search Make/Model Search, The 366 was the long-standing standard workhorse of the C5500 - C7500 GMCs. It is a reliable, torquey engine with a strong bottom end - runs happiest below ~4,200 RPM. It is by no means economical; in fact, somewhat fuel thirsty. Works well coupled through an Allison automatic or 6-speed manual with button clutch, but generally prefers …, Find CHEVROLET 6.0L/366 Chevy big block Mark IV Camshafts & Valvetrain and get Free Shipping on Orders Over $109 at Summit Racing! $5 Off Your $100 Mobile App Purchase - Get the App Vehicle/Engine Search Vehicle/Engine Search Make/Model Search , I own a 1988 GMC C6000 with the Chevy 366 engine. I checked the timing on it the other day and it was set at 12 degrees BTDC at idle. This ..., The 366 is an eight-cylinder, 6-liter engine. It has 300 horsepower at 4,400 rpm. It has a bore and stroke of 4.00 and 3.62 inches respectively. Compression, Torque and Fuel …, Gm 366 Engine Assembly - Rebuilt | P/N 4073. REBUILT - Lb gm 6.0 (366 cid) vin b (68 - 90) V8 ohv gm med duty, Gen iv, 2 pc r. Seal must verify with or wit... Warranty: Vendor. Item:TR 4073. Please Call. Shop our inventory of rebuilt GM 366 Engine Assemblies at unbeatable prices. Enjoy our hassle-free online checkout or call to speak to an expert., 4980 posts · Joined 2013. #17 · Jan 22, 2016. The output shaft bearing race is used to locate the tail-housing on a typical 4x4 4spd and is used to locate the bearing retainer (go figure) on the Clark. You'll need to bore out the 4x4 tail-housing to accept the bearing for what should be obvious reasons., This MABBCO® Master Engine Kit is for a GM Chevy 366 6.0 motor, model years 1991 through 1998. The late model 366 engine is identifiable by it's 1pc. rear main seal. Each kit is custom assembled using parts based on your engine’s requirements. Accordingly, we need to know the following: (1) model & year, (2) piston & ring size, and (3) rod ... , hi gm truck club! i'm looking for some technical information on a 1991 gmc topkick with a 366 truck block with tbi fuel injection. it is actually a tow truck, 17 or 19' rollback. it belongs to a friend of mine whom i do side work for. he was on his way back to the shop when the engine overspeed light came on, and the truck sputtered to a stop., Find CHEVROLET 6.0L/366 Chevy big block Mark IV Distributors and get Free Shipping on Orders Over $109 at Summit Racing! Use your Summit Racing SpeedCard today, and get up to 10% back - Get Details! Vehicle/Engine Search Vehicle/Engine Search Make/Model Search, Black ceramic block hugger headers for 55/57 Chevy with Big Block Chevrolet engines. Part Number: SNH-BB55-BEC. Not Yet Reviewed. Estimated Ship Date: Jul 22, 2024 (if ordered today) Free Shipping. Special Order. $723.99. Add To Cart. Compare., Originally Posted By: Jason280 I recently picked up a 1984 medium duty GMC 70 Topkick/Kodiak truck, with a GM 366 gas engine and 5spd manual trans with 2-spd rear end. I need to change the oil in the truck, but I have had a little difficulty finding the recommended oil and actual capacity.