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Topic Review (Newest First)
10-16-2012 01:56 PM
TucsonJay I would say it depends if you want a hot rod... or an antique. I had inline Chevies in the beginning, starting with a 216 3-speed, but it was a pain just trying to keep up with traffic!

Maybe the newer sixes would give enough power to be acceptable.
10-16-2012 01:04 PM
bigdog7373 Keep the original engine! That's just cool as hell to have a 47 with the original engine, trans, AND rear!
10-11-2012 06:26 PM
farna Oh, I see now! Someone had already pointed out the transmission might not work, you were just pointing out that the motor mounts are different as well.
10-11-2012 04:33 PM
Capt.Kurt Farna
Yea I know just kinda putten in my 2 cents worth. he said he was thinking about going to an inline 6 with more power .
So I just thought Ied throw out a few things I know about them.
If he does go that rout he will know that somemore work is in the future.
10-11-2012 10:54 AM
farna Capt. Kurt -- he doesn't have a 250, he's got the older 216. I think the mounts for the 292 are in the same place as the 216/235, but I'm not a Chevy expert! I know they changed with the 250.
10-10-2012 10:26 PM
techinspector1 For years now, I've had a desire to build a GMC 302 inline 6 and mate it up to a '60 or '61 Falcon with a 4-spd/5-spd. through a 9 inch with 4.56 gears. Just seems to me that it would be more fun than a barrel of monkeys.

When I was a kid, I saw one in a '40 Chevy coupe with a 6-71 huffer mounting five Strombergs on a log intake. I was 14 at the time (1956) and the sight was so overwhelming that I can still see it in my mind's eye like it was yesterday.
10-10-2012 08:51 PM
Capt.Kurt Your gonna find that the 292 inline 6 motor mounts are in diffrent places than the 250 .
You will half to change that on your chasie and also the 292 is taller than the 250 .
So grab a tape and see just how much clearance you will have under the hood.
When you put the air filter on youll be way up there.
10-10-2012 06:51 PM
farna "9 main bearing 250 or a 292"

Hmmm... where the heck did they put all those bearings?? One main bearing on each end and one between each cylinder is SEVEN main bearings. Where the heck are the other two? Doubles on each end??

You miss counted...
09-29-2012 09:59 AM
MARTINSR I have been an inline six fan since I got my first car, and truck around 16 years old both with sixes in them. I haven't ran a six for years and now have a daily driver with an old flat head six and a 235 with Corvette side drafts waiting for my truck (next build).

To put the little later and much better 235 in your car is a bolt in. The down side is if the rest of your drive train is in good shape and doesn't need to be replaced or rebuilt. I took a gamble with my daily driver and I am having a ball driving it every day. These old cars can last forever if maintained anywhere right. So your trans and rear end may very well be perfectly good and you bolt in a later 235 and have at it. There are tons of speed equipment and such so you can get a few oats out of the little 235. You put this later motor in and do the brakes and change the lube in the rear end and tranny and drive the wheels off the thing just like that.

Or you may find yourself wanting to change out the rear end and tranny.

I had a basically stock 1959 235 with a mild cam and a home made intake with a four barrel and headers in my truck. It had a Muncie four speed and a 3.90 55 Chevy rear end and it ran 16.40 in the quarter at 85 mph which is VERY respectable. It doesn't sound like much but if you go to a real drag strip with some normal street driven muscle cars and stuff like that you will find they don't run as fast as the numbers you see people bragging about!

So, here is the scoop, changing out your rear end and tranny may be needed just to get it up to par. If that's the case, still super easy stuff. So if you changed out that old 216 and put in a later model 235 or the 62 and up 9 main bearing 250 or a 292 with a T-5 five speed (cheap as hell) and a little ten bolt rear (cheap as hell) you can put together a very cool car with plenty of poop for pretty cheap. It will all go in very easy, easier than a V8 swap and you have something interesting, you have a "Stovebolt" Chevy and it will be fun to drive and fun to open the hood at an event.

These late model sixes are basically a "Small block Chevy" in simplicity and parts interchange. There are PILES of performance parts for them. And to rebuild it is reasonable.

Check out Inliners International devoted to all Inline powered vehicles I just ran into a bunch of these guys at the last local show, there are active groups all over from this club.

Lot's of guys Stovebolt -- Old GM - GMC - Chevy Trucks! into the sixes as well.

I have to tell you, I LOVE driving my little flat head six (1959 Rambler) every day. This particular car is GUTLESS I mean REALLY gutless with a little 196 flathead but I don't care, I love driving it because it's different. Not only different from all the other late model cars on the road but different from the other vintage cars I run into too.

09-29-2012 08:37 AM
joe_padavano The 292 is an easy swap. Another choice (if you want to deal with an EFI motor) is the Atlas family 4.2 liter Vortec out of a Chevy Trailblazer (and all the sister vehicles). These are now plentiful in wrecking yards and 275 HP stock.
09-28-2012 01:21 AM
inline six or V-8 for my 47 Chevy

Why not find a 292 L^? I have two and both are in old inline cars. Both run great and in my case I built both of them. I also updated the driveline to an open one and use a Power Glide in one and a T-5 in the other. You'll be surprised at the performance you can get.
09-19-2012 07:36 AM
matt167 Full pressure oil 235 would be a direct bolt in. You will need a water pump adapter for a '55-later engine but the stuff's available to do it.

As for a later engine, like a 194-250. That's been done too. There are bellhousings that will bolt to the later engine ( std chevy pattern ) and bolt to the trans.
09-18-2012 11:33 PM
junior stocker IF you mean a later 235/261 ,it's possible to use your trans with the "old" bellhousing/clutch assembly. IF we're talking about the 194-215-230-250-292 with the V-8 style bellhousing flange, the trans bolt pattern is also different. I'd advise you to go over to ChevyTalk.Org, to the forum that includes your 47, and see what they can help you with. I'm in the tri-five and 49-54, and truck forums over there. Butch/junior stocker.
09-18-2012 07:25 PM
bob70 If you're interested in an inline 6 I'd strongly suggest you visit That's where the inline experts hang out and they'd be more than happy to field any questions you have.
09-18-2012 06:27 PM
inline 6 or V8 for my 47 chevy????

currently have the original 216 and 3 on the tree in my 1947 fleetmaster 4 door. was thinking of swappin it out for somethign with a little more grunt. i have a free 305 that needs a rebuild and would also require a diff tranny and rear end. then i get word to try an updated inline 6 (mount right up to original 3 speed and rear end)

pros and cons please.
what era of inline six would be best if i choose that direction?

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