Chevy 250 inline 6 engine

Oct 25, 2022 ... Show and tell. What is needed to install into your engine.

Switch activating the red light position; the main and auxiliary batteries are connected together and the red light is illuminated at all times regardless of ignition switch position. …Valve Guides Set + $31.80. Push Rods + $31.29. Rocker Arms + $111.42. $650.10. Add to Cart. This Master Engine Rebuild Kit Includes: Complete Gasket set (Including seals), Pistons, Rings, Rod Bearings, Main Bearings, Cam Bearings, Oil Pump, Freeze Plugs, Cam Kit (Camshaft, Lifters), Timing Kit.Most people who look into making improvements – major or minor – to a GM-built inline-6 will eventually encounter Tom Langdon’s name. Simply put, he’s the Chevrolet inline-6 engine guru. From its introduction in the 1950s until the oil crisis two decades later, the modern overhead valve, small block V-8 enjoyed cultural dominance across ...Engine Size 4.1L 250 cid L6. BLUF (Bottom Line Up Front): I need help to improve performance of my 4.1L 250 cid inline 6. ... After some research, I have discovered that 1975 was the first year Chevrolet began using an integrated cylinder head/intake manifold on their L6 engines. These manifolds are notorious for cracking even without ... Find CHEVROLET 4.1L/250 GM inline 6-cylinder Camshafts 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 Dress up your Chevy 194 230 250 292 engine with this 147-Piece stainless steel Hex Head bolt kit. This kit is guaranteed to fit! The kit includes the proper flat washers to insure that your Oil Pan, Valve Cover, Etc. get the proper support that is essential for a good, long lasting seal. Please note.I ran this setup in the last car (stock engine internals, including head) at 10psi and it moved quite well! The last car was a 65 Nova, ...

If the engine is stock, I'm 99.9% the cam and lifters are hydraulic. The firing order of a chevy inline 6 is 1-5-3-6-2-4. With that said, set the engine up on cylinder 1 TDC. Rotate, clockwise (by hand) until the rocker arm just starts to move the exhaust valve open. Set the intake valve.Chevy 250 straight 6 running. This engine was rebuilt and coupled to a 5 SPD manual transmission and put in my 1978 chevy c10 big 10 truck.The Chevy 250 straight-6 engine was a single-cam overhead-valve inline-six. It originally produced 155 horsepower and 235 lb-ft of torque with a one-barrel Rochester Monojet carburetor. The 250 was a stroked version of the smaller 3rd generation GM six-cylinder engines. The 250 has a bore of 3.875 … See moreNice article. Always liked the Chevrolet inline 6 engines. My dad’s last vehicle and the first one to enter my life was a 1968 GMC CS1500 longbed pickup with the 292 and granny gear four-speed manual transmission. It was a base model with the only options being the big six, transmission, longbed with wood floor, rear stepbumper and …In-Line 6 cylinder (250 ci) remanufactured marine engine (2-piece rear main seal, flat tappet cam). This motor has been professionally remanufactured to meet or exceed GM OEM marine engine stock specifications. This engine is a direct replacement for 1963-1982 inline six cylinder marine engines. This in-line 6 cylinder marine engine comes ...

Today i bought a nice Chevy 250 inline 6 motor . The cast # is 377127 so its like a 73-79 model , and i'm looking about putting it in my 73 jeep cj5 . It had the 258 inline 6 in it , but it started knocking . so I took it out , and I know it has the stock 3 speed in it to .So Like what would I have to alter so I can make it work .Find CHEVROLET 4.1L/250 GM inline 6-cylinder Camshaft Kits 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 SearchShop Offenhauser 250 Chevy Inline Six Intake Manifolds and get Free Shipping on orders over $149 at Speedway Motors. Talk to the experts. Call 800.979.0122, 7am-10pm, everyday. ... Engine Version. 250 Chevy Inline Six. Brand. Offenhauser. Products. Offenhauser | #5605416. Offenhauser 5416 Single Quad Carb Intake Manifold Kit for GM …Ok The engine code is F0916CCG. F= Flint Mi. 09= Sept 16= Day of Month CCG= 250 3-sp manual. Engine vin is 10W132343. 1= Chev. 0= 1970 132343= last 6 digits of auto vin. Vin on car is 113690W132343. The last six numbers of engine vin and car vin match, so this is the cars original engine.:yes: The problem is This car is an automatic and the ...435 posts · Joined 2009. #4 · Jan 14, 2010. sgtsteve has a nice 66 moordoor nova with most of the 6 cyl upgrades that are usually asked about. his has 292 Exhaust Manifold with 2 1/2" pipe/Flowmaster 40 series muffler and factory GM HEI distributor, Competition Camshaft, Offenhauser 4bbl intake manifold with Holley 390cfm 4 bbl carb.

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General Motors Brazil (GMB) took the body design of the Opel Rekord C plus the Engine from Chevrolet Impala (250 inline 6). Opala was the first car produced by GMB. Before it, only small/big trucks and buses were produced locally.A 250 Chev six powered Acadian was a great, economical family car in the sixties and a great, economical winter beater in the seventies and eighties. But any 4 …Find CHEVROLET GM inline 6-cylinder Crate Engines 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 GM inline 6-cylinder Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! ... Get the App Final Day! Vehicle/Engine Search Vehicle/Engine Search Make/Model Search Make/Engine Search ... 12-Point Nuts, Chevy, 194, 230, 250, 292, 6 Cylinder, Kit. Part Number: ARP-132-4201. 5.0 out of 5 stars. …Late Chevrolet Inline 6 Cylinder head Index. CASTING NUMBER. CID. Chamber Volume (CC) COMMENTS. 3788415. 1962-67. 194. 72.80 CC.

The engine mounts will be staggered on a 292, not straight across from each other like on a sbc or the 250. Also the fuel pump will be in a different spot - it's on the lower middle of the passenger side on the 292 if I recall correctly- I'm less certain on that one as it's early and I've not had my coffee yet. J.Find CHEVROLET 4.1L/250 GM inline 6-cylinder Pistons 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 SearchThe 292 is a real torque monster with a 4.125" stroke and same bore (3.875") as the 250. You could leave the gearing the same and the 292 would pull fine, and it is still capable of turning enough RPM to go way over the posted limit. If you do go looking for a 292, they are easy to spot.366855. Manufacturer: Chevrolet Category: Engine Blocks Type: Inline-6 Date: 1966-1984 Notes: 250 CID, Chevrolet, Buick, Oldsmobile, PontiacThe 2015 Chevy Silverado 1500 is a reliable, powerful, and comfortable pickup truck that has been a top choice for drivers for years. The 2015 Chevy Silverado 1500 is powered by a ...The Chevy 250 inline 6 cylinder engine was produced between 1966 and 1985 for the U.S. market. It was a reliable straightforward engine that came to fame mostly due to the fact that was offered alongside the Chevy 230 inline 6 in the all new Chevrolet Camaro. From 1974 to 1985 there was an integrated head produced for the 250 that offered a 1 ... Find CHEVROLET GM inline 6-cylinder Crate Engines 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 For 1962, the trusty stovebolt was reborn. The original Chevrolet inline six, introduced in 1929, redesigned for 1937, and constantly refined through the years, was a key part of the bow-tie brand’s identity. That is, unitl the sensational 1955 V8 appeared. Relegated to the shadows, so to speak, by the small-block V8, by the early ’60s the ...The 1966 250-6 I had, had a few modifications! First, I had the top of the intake manifold milled, after I plugged the original carb mount bolt holes with cut off bolts. Then I ground out the throat of the manifold to accept the bore of a 1966 California built Chevy 283 V-8 2 barrel carb. (yes, by then California already had airpollution crap ...

May 31, 2023 ... Chevrolet 250 conversion using Robert Davis conversion. Built in our barn. Stock but massaged 250 with 292 2.5” exhaust manifold.

I'm told the Chevy 250 straight six was a common swap for these when the Austin inline six wore out, died, or suffered from typical British reliability issues. We're already discussing and exploring possible updated engine swaps for this one (Possibly a LV3 4.3L V6, or maybe a Gen IV or Gen V 5.3L V8).J.L. was thinking about a Chevy six for his next project, and asked our Jeff Smith what he thought about the idea. The answer was a definite yes, especially for a lightweight hot rod with an open engine compartment. Jeff explains the pros and cons of the post-1962 inline sixes (available in 192, 230, 250, and 292 cubic inch versions), what ...Aug 21, 2014 ... The 292s were truck engines and very rare overhere, IDK its deck height , but the L6 250 is 9.13''. Hope this helps. '71 Z28 street strip carJ.L. was thinking about a Chevy six for his next project, and asked our Jeff Smith what he thought about the idea. The answer was a definite yes, especially for a lightweight hot rod with an open engine compartment. Jeff explains the pros and cons of the post-1962 inline sixes (available in 192, 230, 250, and 292 cubic inch versions), what ... Find CHEVROLET 4.1L/250 GM inline 6-cylinder Parts and Accessories 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! The 292 is a real torque monster with a 4.125" stroke and same bore (3.875") as the 250. You could leave the gearing the same and the 292 would pull fine, and it is still capable of turning enough RPM to go way over the posted limit. If you do go looking for a 292, they are easy to spot. Chassis Engineering CS-1417 comes as a pair of Universal Chevrolet Inline 6 Engine Mounts for 22 inch or wider frames. 19 inch Engine mounts for Chevrolet in-line 6 cylinder, 1962-up, 194-230-250 CI. Note: Before going the universal route, have a look at our complete engine mount kits here and see if there is a swap kit for your car listed. If ... Take note: The Chevy inline 6 cyc engine have a very minimal oiling system. Make sure you check and double check your rod & main clearances. The 6 is not as forgiving as the SBC brother. Loose clearance can drastic reduce oil pressure. Most engine kits give you the cheapest parts available. It's a price point. Find parts that fit. We need more information about your vehicle to confirm fit. Year Make Model Trim Engine. Finish adding vehicle. 1978 Chevy Truck C-10 250 INLINE SIX ENGINE FITS Read “FULL” Description Below. Parts Only. $349.00. jefreysr123 (1,053) 100%. or Best Offer.

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from MB, Canada. squirrel said: there's also an engine code on the block, stamped on a machined pad to the left of the distributor (lookin at the engine from the pass side). The last two or 3 letters of this code will be the engine code, which the Chilton's book might have listed.Too fit the Chevy Six engine : 194 - 230 - 250 - 292 series straight - six motors. Now Sold through Tom Lowe @ 12bolt.com #1 #2 and, Mock-up fit mounted on a 250 ci motor - using a stock 'Fel-Pro intake / exhaust gasket set : Fel-Pro part # QM 59786 . Also you can use a "Thicker Intake / Exhaust gasket ....Torque specs and bolt sequence 250 Inline 6 Engine & Drivetrain. Register or Log In To remove these advertisements. The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain ... 250 6, headbolt sequence, inline 6 chevy c10, torque specsResearch the 2024 Chevy Colorado with our expert reviews and ratings. Edmunds also has Chevy Colorado pricing, MPG, specs, pictures, safety features, consumer reviews and …Get ratings and reviews for the top 11 gutter guard companies in Chevy Chase, MD. Helping you find the best gutter guard companies for the job. Expert Advice On Improving Your Home...Aug 12, 2022 · The humble Chevy inline six has legions of fans. Read more of Jeff’s advice on the engine here: The Pros and Cons of the Chevy Inline Six for Old-School Hot Rods (Image/OnAllCylinders) This is cool that we are receiving more international tech questions. It sounds like you have assembled a good selection of parts, including the camshaft. In-Line 6 cylinder (250 ci) remanufactured marine engine (2-piece rear main seal, flat tappet cam). This motor has been professionally remanufactured to meet or exceed GM OEM marine engine stock specifications. This engine is a direct replacement for 1963-1982 inline six cylinder marine engines. This in-line 6 cylinder marine engine comes ... Starting with the basic engine architecture from Chevy’s inline six, Pontiac engineers pretty much reworked the entire thing. In addition to an all-new iron engine block, the Sprint 6 had a unique cylinder head that put a single, large 1.920″ intake and 1.600″ exhaust valve in each combustion chamber.Shop Offenhauser 250 Chevy Inline Six Intake Manifolds and get Free Shipping on orders over $149 at Speedway Motors. Talk to the experts. Call 800.979.0122, 7am-10pm, everyday. ... Engine Version. 250 Chevy Inline Six. Brand. Offenhauser. Products. Offenhauser | #5605416. Offenhauser 5416 Single Quad Carb Intake Manifold Kit for GM … ….

Vortec 4200. Dubbed the LL8 or Vortec 4200, the naturally aspirated engine displaced 4.2 liters, used a double overhead cams with four-valves per cylinder and had variable valve timing on the exhaust side. It made its production debut for the 2002 model year. The engine made 270hp and 275 pound feet of torque, with later engine updates bumping ...250 Chevy inline six The stroked 250 version produced 155 hp (116 kW) for Chevrolet and GMC. Between 1975 – 1984, an integrated cylinder head was produced, with one-barrel intakes for passenger cars, and two-barrel intakes for trucks after 1978. Passenger car use of the 250-cubic-inch (4.1 L) engine was discontinued after the 1979May 31, 2023 ... Chevrolet 250 conversion using Robert Davis conversion. Built in our barn. Stock but massaged 250 with 292 2.5” exhaust manifold.Too fit the Chevy Six engine : 194 - 230 - 250 - 292 series straight - six motors. Now Sold through Tom Lowe @ 12bolt.com #1 #2 and, Mock-up fit mounted on a 250 ci motor - using a stock 'Fel-Pro intake / exhaust gasket set : Fel-Pro part # QM 59786 . Also you can use a "Thicker Intake / Exhaust gasket ....This is one test being done on a Chevy 250 to find out what performance gains are found with different cams, intakes, heads and exhaust upgrades.More info at...Jun 5, 2021 · Vortec 4200. Dubbed the LL8 or Vortec 4200, the naturally aspirated engine displaced 4.2 liters, used a double overhead cams with four-valves per cylinder and had variable valve timing on the exhaust side. It made its production debut for the 2002 model year. The engine made 270hp and 275 pound feet of torque, with later engine updates bumping ... This kit is not recommended for use with ethanol fuels due to compatibility concerns. Offenhauser cast aluminum dual carb intake is specially designed for the 1950-1959 Chevy 6-Cylinder. Adapter kit comes complete with all the necessary mounting hardware and gaskets. This part is Backordered. We estimate this item will ship on or before May 15th.Mar 6, 2019 · Too fit the Chevy Six engine : 194 - 230 - 250 - 292 series straight - six motors. Now Sold through Tom Lowe @ 12bolt.com #1 #2 and, Mock-up fit mounted on a 250 ci motor - using a stock 'Fel-Pro intake / exhaust gasket set : Fel-Pro part # QM 59786 . Also you can use a "Thicker Intake / Exhaust gasket .... Chevy 250 inline 6 engine, Timing and Timing Procedure for 250 Straight 6. First post. I have a 1962 Chevy II that originally had a 194 straight 6. I converted to a 250 straight 6. I have had some conflicting information on the timing for the 250. From what I have learned, it should be 4bdc, but I have read where some folks have gone as high as 8 bdc., Shop Chevy 250 Inline 6 Performance Parts and get Free Shipping on orders over $149 at Speedway Motors. Talk to the experts. Call 800.979.0122, 7am-10pm, everyday., The Chevy 250 was used in cars, trucks, and vans, and had many industrial uses being manufactured from 1962 to 1990. A good used GM inline 6-cylinder engine typically sells for under $500 and is usually less than $250. The cam is driven by metal timing gears eliminating the need to change a timing belt or timing chain., Find CHEVROLET 4.1L/250 GM inline 6-cylinder Pistons 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, Today i bought a nice Chevy 250 inline 6 motor . The cast # is 377127 so its like a 73-79 model , and i'm looking about putting it in my 73 jeep cj5 . It had the 258 inline 6 in it , but it started knocking . so I took it out , and I know it has the stock 3 speed in it to .So Like what would I have to alter so I can make it work ., Engine Size 4.1L 250 cid L6. BLUF (Bottom Line Up Front): I need help to improve performance of my 4.1L 250 cid inline 6. ... After some research, I have discovered that 1975 was the first year Chevrolet began using an integrated cylinder head/intake manifold on their L6 engines. These manifolds are notorious for cracking even without ..., For 1962, the trusty stovebolt was reborn. The original Chevrolet inline six, introduced in 1929, redesigned for 1937, and constantly refined through the years, was a key part of the bow-tie brand’s identity. That is, unitl the sensational 1955 V8 appeared. Relegated to the shadows, so to speak, by the small-block V8, by the early ’60s the ..., Hello, I am writing from Cuba. I am rebuilding a 230ci inline Chevy 6 cylinder. I have pistons from a 283 to that are 0.060-inch oversize, a Magnum street cam 61-244-4, and all the parts that are required for the comp cam, also Harland Sharp rollers, a single quad Offenhauser intake manifold and headers, stainless steel valves., But the basic Chevy overhead valve inline six-cylinder engine was first introduced in 1929 and remained in active production until 2001, for a total production run of 72 years. The Chevrolet straight six was introduced for the 1929 model year as the brand’s only power plant, replacing the 2.8-liter four-cylinder engine that powered earlier Chevs., Chevrolet Inline-6 Engine: How to Rebuild. Paperback – Illustrated, November 1, 2018. *NOTE: This book focuses on the 1954-1962 engines. These engines had insert bearings as opposed to the poured Babbitt bearings of the earlier models. With the majority of owners retrofitting the newer engines into older chassis and the difficulty …, Find CHEVROLET 4.1L/250 GM inline 6-cylinder Carburetors 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, When it debuted for 2002, the LL8, as the inline-six version was called, made a whopping 270 horsepower from 4.2-liters of displacement, and 275 lb-ft of torque, 90 percent of which Wards Auto ..., Find CHEVROLET 4.1L/250 GM inline 6-cylinder Engine Rebuild Kits and get Free Shipping on Orders Over $109 at Summit Racing! ... Engine Re-Ring, Cast, 3.875 in. Bore ..., Find CHEVROLET 4.1L/250 GM inline 6-cylinder Camshafts 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 Make/Engine Search Departments; Brands; Savings Central; Contact Us; 1-888-501-9619; Help Center ..., Camshafts for the Chevrolet Straight Six 194, 230, & 250 CID Engines . Hydraulic Flat Lifters : Company : Model ; Grind . Power Range : Total Duration . Total Lift : 0.050 Duration . Lobe Sep. Chevrolet . ... Camshafts for the Chevrolet / GMC Straight Six 250 CID Engine Author: Timothy S. Winter, The engine is a 197_ (ish) Chevy Straight 6, 250 cubic inches (4.1L). The carburetor is an Amazon Chineseum special. Here's a few pix from the listing on Amazon: ... I'm told the Chevy 250 straight six was a common swap for these when the Austin inline six wore out, died, or suffered from typical British reliability issues., Find CHEVROLET 4.1L/250 GM inline 6-cylinder Engines & Components 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 Chevy 6.0 liter small block engine is an eight-cylinder engine aligned in the V formation and is called the Vortec L96. As of 2015, it is used primarily in Chevy’s heavy-duty t..., (first posted 10/21/2013) This is not how you’re probably used to having a Chevy 250 six look. North American Chevy sixes had one barrel carbs, and were never offered in any state of tune except mild. But In Brazil, the long-lived six as used in the Opala and Comodoro and Diplomata and ultimately the Omega continued to be developed further., NEW ALTERNATOR BRACKET FOR ALL 1962-89 VINTAGE 153 194 215 230 250 AND 292 GM INLINE ENGINES. MOUNTS TO THE FACTORY BOLT HOLES ON THE ENGINE AND HAS ..., Shop 250 Chevy Inline Six, Engine Parts and get Free Shipping on orders over $149 at Speedway Motors. Talk to the experts. Call 800.979.0122, 7am-10pm, everyday. , I had a 1981 Chevy C10 pickup with a 250 inline 6 in it. When I got it rebuilt, used that Competition Cams cam Summit recommended. Great choice! Also ran an early 70s head with Clifford intake manifold, small Holley 4 barrel carburetor, and headers. Ran great! No problem passing anything but a gas station. lol! 16 gallon tank didn’t go very far., Get the best deals on Chevrolet Car and Truck Engines 6 Cylinders when you shop the ... 1978 Chevy Truck C-10 250 INLINE SIX ENGINE FITS Read “FULL” Description ..., Find CHEVROLET 4.1L/250 GM inline 6-cylinder Carburetors 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 , Find CHEVROLET GM inline 6-cylinder Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! ... Get the App Final Day! Vehicle/Engine Search Vehicle/Engine Search Make/Model Search Make/Engine Search ... 12-Point Nuts, Chevy, 194, 230, 250, 292, 6 Cylinder, Kit. Part Number: ARP-132-4201. 5.0 out of 5 stars. …, Here is the list of products intended for racing purposes. All these products should be installed in accordance w/ state regulations about emission standards. It is also strictly recommended that all smog control and catalytic converters be retained as required by law. Shop now! , The stroked 250 version produced 155 hp (116 kW) for Chevrolet and GMC. Between 1975 - 1984, an integrated cylinder head was produced, with one-barrel intakes for passenger cars, and two-barrel intakes for trucks after 1978. Passenger car use of the 250-cubic-inch (4.1 L) engine was discontinued after the 1979., Find CHEVROLET 4.1L/250 GM inline 6-cylinder Engines & Components and get Free Shipping on Orders Over $109 at Summit Racing!, Using a piston ring compressor, oil the inside of the compressor tool, the cylinder walls, and the pistons themselves. Do not use assembly lube here. Use a good SAE30 non-detergent engine oil to slather everything involved. This Tech Tip is From the Full Book, CHEVROLET INLINE-6 ENGINE 1929-1962: HOW TO REBUILD. , J.L. was thinking about a Chevy six for his next project, and asked our Jeff Smith what he thought about the idea. The answer was a definite yes, especially for a lightweight hot rod with an open engine compartment. Jeff explains the pros and cons of the post-1962 inline sixes (available in 192, 230, 250, and 292 cubic inch versions), what ..., The stroked 250 version produced 155 hp (116 kW) for Chevrolet and GMC. Between 1975 - 1984, an integrated cylinder head was produced, with one-barrel intakes for passenger cars, and two-barrel intakes for trucks after 1978. Passenger car use of the 250-cubic-inch (4.1 L) engine was discontinued after the 1979. , Aussiespeed 250, 292 inline chevrolet chevy inline 6 4 barrel intake manifold. Brand New. $625.00. aussiespeed-performance (2,334) 100%. Buy It Now. +$110.00 shipping. from Australia. 14 sold. 63-75 Chevrolet Inline 6 Cylinder Cast Iron Intake Manifold 6270042 OEM 250 292., The 292 is a real torque monster with a 4.125" stroke and same bore (3.875") as the 250. You could leave the gearing the same and the 292 would pull fine, and it is still capable of turning enough RPM to go way over the posted limit. If you do go looking for a 292, they are easy to spot.