I Brought Home a 250 Inline 6 - Is It Worth It? 

I really do like a good inline 6 build, I'm just glad it's not ANOTHER LS swap.

A great engine! Those Chevy 250 6 cyl engines were indestructable.. Some local delivery business in my area had those engines in the large step side vans go a million miles

Bullet proof, gear to gear , no timing chain, good little dependable motor.

I have a hot little 250 in my 1936 Plymouth. Triple carb, mild cam, lump port head, SBC pistons, and balanced guys. She rips!!!

I still daily drive a 1977 Camaro with a completely stock 250 inline 6 - it’s super reliable and I easily get 20 - 22 mpg out of it on a long run. I’m in the UK so it certainly gets a lot of attention here...

Doing the same thing. Just bought a 57 GMC 100 with a bad 307. Looked at all my options and decided I want a 6. Just picked up a 1969 292 with the 4 speed trans. I’ve chopped and swapped to many vehicles so this one I want mostly original with modern upgrades.

I drive a 1970 c10 step side daily and it has this engine in it. It’s very reliable and pretty good on gas. I bought the truck 9 years ago and the oil level has always stayed at the full mark so it doesn’t burn oil and I keep the oil changed regularly. I Love mine, it’s great!

MY father owned a 65 aqua chevy malibu with straight six. Was near indestructible and had so much power climbing any hill. Was a great engine for sure and never broke down.

Its pretty bulletproof too and it's a great workhorse engine. Its not a speed demon, it's not meant to be.

Just picked up a 68 c10. 250 3OTT. Kinda want to keep it numbers matching and restore the old unit. Im 23 so i absolutely love the 3 speed. Anti theft at its finest 👌. The 250 maybe slow but my daily driver for 5 years was a 89 volvo 240 n/a auto. It honestly doesnt bother me 🤣. Thinking abouy mayhe finding a cam, header, and intake for yhe 250. Spice it up a little bit for cruising. Firat i jave to put floors in the poor thing 😅

Yep I love inline 6 too, I just got an 82 250, thinking of rebuilding it

The 250 straight 6 Chevrolet is a great 6 cylinder engine plenty stout for a half ton truck with a manual transmission good video

The 250 was the Slant Six of GM, (another great engine) which found its way into everyting from Chevy Novas to Dump Trucks, RIGHT ON!

I have the same engine 79 gmc C15 pick up truck. It’s a short bed. My father purchased the truck and auction from our local electrical utility company in 1984. When I get around to restoring the truck, I will rebuild the original engine. It’s mated to a turbo 400 transmission. Strange, because most people say that the engine should be made it to a turbo 350. I know for a fact that it’s a turbo 400 because I had the transmission rebuilt many years ago.

I had a Chevy 250-6 in my 1971 Camaro. Absolutely bulletproof and ridiculously simple. All I did was install an Edelbrock intake manifold. Most other under the hood parts were easily obtainable from the salvage yard. A 3 speed manual transmission cost $50.

I just picked up a 73 firebird with the original inline 6 and trans matching numbers. I’ve never seen a 70-73 firebird with one. I didn’t know they came with them. But I’m leaving it lol great video brother

Seriously consider converting to the earlier style cylinder head with separate manifolds. If your integral head isn't cracked it's the only one in the world, and it will crack in the future.

Good choice, strictly old school keep og hot rodding alive ❤

Had me a 65 GMC with a late 70's 250 and 3 speed. Also a 76 F100 with a 300, 64 Dodge D200 with a 225, and a 63 Valiant with a 170 Slant. None were fast, but all were sweet, smooth, and torquey. Also had 4 Mavericks and a Fairmont, all with 200s except for 1 250. The 200s were gutless turds.

That's one of Chevy's best engines, small and big blocks be damned.

Love the look and feel and ease of general maintenance. My dad had a 350 beater in a ‘60 chev back in the day and he was accused of swapping it out for the weekend street races. Every weekend? Not once. Great vid.

I had 1975 nova 2 door the car was like new. Had the 250 inline 6.someone stopped in front of me I smashed the whole front. Was looking in paper found a 1978.all I wanted was the front I told him don't care if it runs. I got there it had the 250 but it ran great he sold it for$100 . looked good. Was bought new. His mother couldn't drive anymore. I took the car home put my mags and other stuff drove it for 2 years. Sold it was still running great 👍 they don't make them like that anymore 🚗

Been there 250 and 292 inline six for a K10 fun motors good torque down low rpm

Yes the inrergrated heads where prone to crack. The two bbl head was more prone than the single bbl intergrated heads.

Wow, you could almost be my twin brother, ya poor bastard! I love your orange cat, by the way.

Got 4 K20's 3 are straight six one is a 350. OMG love the straight six's. Much better on gas, simple to fix, tons or room under the hood, run like tops, smooth, reliable, and FUN, FUN, FUN to drive. I hardly ever use the 350 just a bit to circulate the fluids.

I just picked one up out of 73 GMC. Im planning to stab it into a 62 Studebaker Lark that was an inline 6 car...going to be a bit tight, but think it will work. Putting a Powerglide behind it.

Chrysler's legendary "Slant-6" was a good motor. A great motor. Theres just no denying it even from a Bow-Tie Man. But Chevy's venerable 6-cylinders had 7- Main Bearings. Compared to the Slants 4. Man, that's saying something. Chevy placed a main a rod a main where MoPar put 2 rods on each rod journal like a V-8. Not to mention Chevy's 6 is a mechanics dream to work on. Pound for pound maybe the best motor ever. Tough, durable, and reliable.

I have a GM 230 six and powerglide in my '41 Int'l pick up. Great driver, love the inlines for their torque.

On my 54 Chevy aka Ol'Beater. I removed the running 216 cu in. Because it was in terrible shape. I went 350cu. In. In hindsight. I wish I would have done like you. Good Job

Had me a 71' 250 one barrel in a chevyvan. Got 240k on the lower end. Simple, lots of room to work on. Shoulda kept it. Good workhorse.

A brother after my own heart

AWESOME. Can't wait.

Those 250s were excellent. I've had a couple cars with them. Our family had a lot of them. They were best described as excellent except for racing. One of my cars was a nova with a three speed manual. It worked very well. My brother had one too. My first one was a biscayne. It had a two speed transmission that wasn't really a good match for the small engine.

2-bbl. means it was originally installed in a truck. Cars got the 1-bbl. That engine originally made 120 hp and 200 lbs.-ft. Nice jump from 110 hp / 185 lbs.-ft.

No good for power, but simple and reliable.

Those are great Motors I've got two of them sitting in my garage one of them came with a 4-speed the other one came with a 2-speed automatic I'm going to put one of them in my rat rod❤

Good choice, but if I were you I would replace that head with the conventional head that has a removable exhaust manifold. You don't need the smog crap on a 50, so no worry about brackets for the AIR pump, spot for the EGR valve, etc. I once acquired a 51 Chevy 3/4 ton flatbead with a transplanted 250 in it. Had to find an old guy to make up a 6 volt starter that would bolt up to it. Worked fine.

Good for you! You got the dual outlet exhaust manifold and the progressive 2 barrel carb. Pretty much the optimum factory setup, except for the clunky emissions hardware. It's hard to make that look pretty. (I only realized after reading comments that it has the integral head - oh, well.)

I'm doing the same thing. I just bought a 70 Nova with a 250 in it and I'm not switching it, I'm going to build a daily driver that looks decent enough to take to cruise-ins on Friday and Saturday Nights, I'm not some 1000 hp torque monster or a 500 point concourse restoration, I'm going to rebuild the engine and transmission, clean the engine bay up, clean up the interior and put some used bucket seats in the front, do the body work on the car that's needed and paint it with tractor paint, why Tractor Paint? well because it's durable as hell and I have a gallon of Gloss white tractor paint that is just sitting on the shelf collecting dust not doing a damn thing that I bought for a tractor I was going to rebuild then ended up selling it, you can't beat free and like I said, i'm building a daily driver, Idc if it looks prestine.

Had one in a 73 nova. Best damn running engine I've ever had in any car. I'd like another one, in a truck maybe

Camel Back 6……..check the cyl head, most I ever worked on was cracked.

put a 250 with a th350 in my 52 no goin back tour right about all you said fer parts!

I was fascinated to learn about the existence of GIANT GM gas engines, like the 401 and 478 V6, which looks identical to the 305/351 V6s; the 702 V12, basically two 351s in a shared block, crank, and cam; the 637 V8, based on the big V6 design; and a 503 ci straight 6. I heard of a 707 Straight 6, but I ain't sure if it's from GM, Peerless, Seagrave, or Mack. A Canadian guy put a 478 in his 69 C20, it's a torque monster!

250 with a 3 speed manual is the way to go mate,torque monsters,had one in my 65 chevy truck and my 69 camaro,great engines and tranny,were you get it,if you dont mind can you measure the length of that engine? i got a 89 suzuki samurai i want to take the 1.3 out of and replace with something better,my choice would be the 250 or the old 283

Incompatible components between 235 and 250 cubic inch engine??? Looking at a 235 with transmission possibly to put in a 77 custom deluxe that has a automatic how do I know that they're compatible or not??? My friend that wants to sell me the truck says I can do it I don't know? Sometimes it's best not to buy from Friends I want to keep the friendship especially when I work with him

Getting ready to pull my in-line 6 out of my 70 nova 😮‍💨😮‍💨 gonna redo the gaskets and probably rebuild it

If I could have a pre-computer chev. 6 in a pickup, I would be so happy. I think they got almost 20 MPG?

I like inline sixes. Up to the Jeep 4.0 they were mostky good motors

I’ve got the exact same engine in my 79 Chevy Truck. Dual exhaust with the integrated head also. I can’t wait to see the progress on your 250!

I have a GM250! sounds awesome!!

I just can't believe someone else has the same exact engine as mine. I have a 1979 292 with a cracked exhaust manifold. This is a very rare type apparently because neither eBay, Amazon, Jeggs, etc. had it. Also with the dual exhaust pipes merging to one,,, What are you doing with it? Thanks

That’s right good engine

How about a 292 Chevy Six before the smog era?

Why not go with a 292 just out of curiosity?

Most tuned engine in Brazil, Opalas had this engine, people here pull over 2000hp on these things. And yes 2000hp with the original blocks, reinforced sure but still original blocks.

How good are your fabrication skills? The 250 inline 6 has the same bore spacing as a sbc so a cheap set of aluminum heads each cut in 2 pieces however that needs to happen to get the same valve orientation and then weld the 2 sections together to bolt onto the 6 would be fun to drive! The exhaust and intake both would have to be custom though so that would be where a lot of fab skills would have to come from. You don't have to make the intake out of aluminum either if you don't have that capability to weld aluminum. I watched your Dual Flowmaster Super 10 - Chevy 350 - 1970 K10 video on your channel's home page, so it sounds like you have a welder, see you're half way there. There's another channel on yt that cut one cylinder off of 2 LS heads and welded them together to bolt on an inline 6 Ford 300. He made the 2 intakes out of steel that feed 3 cylinders each and will be running two 2bbl carbs. I can't recall how he did the exhaust though. Would be a cool project for a L6 Chevy build, I haven't seen anyone else attempt this even though it would probably be easier than the Ford. Before you attempt this(if you do?) take a sbc head gasket and place it on the 250 deck to see if any of the head bolt holes line up? The L6 Ford guy got lucky with the LS heads because the holes only needed to be slightly slotted. Cool project, I'm subscribing to see whatever way you take it, dealers choice.

These are good motors.

I would've got a 292 cid. I had one pull anything.

Ford should have done as GM did and made the 300 I6 ford with the dual dump log manifold and 2bbl intake. I know that you can get the EFI exhaust manifolds and install a 4 bbl intake and carburetor yourself. This should have been done at the factory. While I do love Ford 4.9L 300I6 I like the GM 250 I6 better.

Hi I have a 68step with the 250 3spd manual ...looking at your video for info cheers man

Have any leads on where to get a 250 dipstick and metal tubing for it also?

Any update on the engine?

*SICK VIDEO* Nice quality shot, is the the integrated head/manifold style one? I’ve got a 250 with the non-integral. Runs and drives great, really classic. All the old guys appreciate it, especially with the 3 speed column shifter *SUBSCRIBED*

Any progress on the build? Where did you mount it in the engine bay/ on the frame? I’m getting ready to do this same swap with a ‘68 250 into a ‘49 Chevy 3100. Any advice or input you may have would be awesome

Always thought the 250 was smoother and more revvy engine than the 292 . would be fun with a turb0.

Got a 250 straight six in my daily driver 65 Chevy G 10

Regular 250s were good engines but that is an integral head 250 ....notorious for cracking heads and overheating.

Do you know if a 250 Chevy will fit a 1946 Chevy truck?

best of luck.

I HAD A 1981 250..TOO MUCH EPA JUNK ON THE ENGINE BUT IT DID HAVE SAME TORQUE AS THE V8 OPIION

What are you going to do with the three speed transmission?

I really like V8's and other performance engines. Steam engines also. Plenty of 'mechanic channels are doing this 'look at this old motor I made better' videos, so already seen a ton of the same old , same old. They were horrible times for car lovers lol why remind us

Gosto muito desses motores Chevrolet 250 , são muitos preparados no Brazil!!

Working on a straight 6 under the hood is easy.

I got a double hump 250 out of 1976 pu

still dialy drive a 4 door nova 73 with stock 250 inline 6!

What kind of mileage will it get ?

The most durable engine Chevrolet ever made.

Can a 250 pull n work like a 292 in a full size c10 or k10

This engine is also known as a "Hot Water 6"

Kmfdm eh, that's an oldy too ;)

I bet You can produce 450hp and 550 ft lbs tq or more out of that.

1960's 250 are simpler. For newer engines, you to know about emissions systems

Great engine. Will last a very long time

Odds are the head is cracked on that engine

i like chevy engines, mi car is chevrolet my chanel is dedicated at chevy chevette

That’s just a big engine it’s not very efficient and its got a cast iron crank that means not very strong either

Not hardly worth the effort. 292 six would be my choice Even more perf parts and they will make 300 hp easy and run for ever.

I currently have a 1952 3600 from a fire station in Alabama which has a block code 096247I F54Z high-pressure 235 - the first Blue Flame Six Block: 3835911 (Corvette after 16 Oct 1953) HEAD: 3701887 = 235 c.i. truck low-pressure I really would love to get a 250

now PUT a TURBO on it!

the 79 model had more power!

The integral heads are garbage, get one with a bolt on intake and exhaust.

6=8

Do yourself a huge favor. Throw the cylinder head away.

GM ruined their I6 engines in the late 1970’s-early 1980’s with those stupid California emission heads-they weren’t the same after that-the standard head ones were WAY better-with the single barrel carburetor.

You got an engine with integral manifolds. Tjey are tertible and ate known for lots pf troubles

Or just swap a vortec 4200 i6 more power better reliability