cancel
Showing results for 
Search instead for 
Did you mean: 
Bryan
Hagerty Employee

Brother from another mother: 11 shared engine displacements

Today it’s common to find engines from several manufacturers that share displacement figures. Engineers determined that 500 cc per cylinder is a sweet spot for efficiency with low emissions and, consequently, there are lots of 2.0-liter four-cylinders, 3.0-liter sixes, and 4.0-liter V-8s. Before that discovery, road taxes in some countries also influenced displacement. Plenty of manufacturers ended up with engines designed to fit under certain mandated thresholds. Read the full article on Hagerty.com:

 

https://www.hagerty.com/media/automotive-history/brother-from-another-mother-11-shared-engine-displa...

162 REPLIES 162
BillMP
Navigator

You missed the 350 Chrysler engine from the 1950's

TK-65
Passenger

307 Chevy and 307 Olds.  Neither a HP engine but none the less.  Also Olds did have a Big Block, the 400-425-455.  The 260-307-330-350-403 were small blocks.

 
Brandan
Hagerty Employee

All those Olds V-8 had the same bore spacing, just a taller deck. Not a big-block in my book.

truckasaurus
New Driver

How could you forget the Pontiac 400 that was installed in first generation Firebirds (including the original Trans Am)?

Brandan
Hagerty Employee

The Pontiac 400 got its own story on 6/6. It's linked above: https://www.hagerty.com/media/archived/pontiacs-6-6-liter-400-v-8/

 

davidmumm
Passenger

Don't forget Cadillac in the 390 list.  1959-1963. 

In addition, you could add another entry with Cadillac 429 and Ford 429.

59SilverHawk
New Driver

Don't leave out the Mighty Packardinline/flathead 327!

Redwings1
Passenger

Pontiac had a 400 also.

bblhed
Advanced Driver

151 Yeah, I know 4 banger but it powered plenty of GM cars and Jeeps.

Crashnburn
New Driver

I bought a stock 1977 Formula Firebird off the dealer's lot in 1977. It had a 6.6L/400 cu. in. displacement, and that was the biggest Pontiac V8 you could get that year for a Firebird. I just had to think about going fast, and the car would start speeding up.

 

I have a 4.9L (302 cu. in.) non-turbo Pontiac V8 in my 1981 SE Trans Am, now, and it goes plenty fast, but I have to do more than think to make the car go faster. 

TrustyRusty
Intermediate Driver

From 1959 through 1963, the Cadillac was powered by a 390.  The final nailhead Buick was a 425, not a 401.

farna
Advanced Driver

AMC made a 287 from 1963-66. The AMC influenced Chrysler/Jeep 4.7L V-8 is also 287 cubic inches. The AMC (Rambler) 287 came about because after 1961 they dropped the "little" 250 V-8. This left the 327 as their only V-8, and it was relegated to the Ambassador. The 62-64 Ambassador had the same wheelbase and basic body as the Classic (the "mid" size/price car, had the small American...), just different trim, grille, and taillights. The powers that be thought to let the engine be a distinguishing factor. Well, dealers didn't like that, many customers wanted more power than the 135 hp 195.6 OHV six (the 232 didn't come out until late in the 64 model year), but didn't want the "fancy" Ambassador. So the 287 was introduced for 1963, and only in the Classic. If you wanted more power you still had to get an Ambo. The 287 was 2V carb only, the Ambo 2V or 4V (with higher compression on the 4V model). I have little in quotes because externally the 250 and 287 had the same dimensions of the 327, just 1/2" less bore (the 287 had 1/4" less bore... 3.5", 3.75", and 4.0", respectively).  There were lots of shared components. The cranks and rods were all forged, so it was much more cost effective to alter the bore when casting a block than to change the stroke of the crank.

 

AMC and Studebaker also had 304 V-8s.  AMCs was created when they added about 1/16" to the deck height of the 290 (and corresponding stroke), Studebaker enlarged their 289 in the later 60s to make a 304. Don't know how they did it though...

Iamtheoctagon
Passenger

You forgot that Chrysler Corporation briefly made a 350 as well, in 1958.

Saltflatsteve
Passenger

327: Chevy, Rambler & Packard

352: Ford & Packard

Al
Intermediate Driver

Chevy had a 292 straight six, and Ford had a 292 Y block.  Plus you didn't mention the chevy V8 305 along with the GMC 305 V6

Brandan
Hagerty Employee

Is the Chevy 305 worth mentioning? The GMC 305 was mentioned with the 351.

Sandy
Passenger

390 c.i. was manufactured by Cadillac 1959-1963

DougL
Intermediate Driver

326, Pontiac V8 and Jaguar V12

JaredCernosky
Passenger

Did  lincoln have close to 500  cid  in the mid  1970's

fbwilliams69
New Driver

460 CID

Carson_Blocks
Navigator

You mentioned the 351W and 351C, what about the 351M?
Also, under 400s, you missed the Pontiac version sold in Firebirds, GTOs etc from '67-'70.

MGVman
New Driver

215 Cubic Inch 3500cc "BOP" Buick/Olds/Pontiac alloy V8 and Rover/Leyland 3500cc V8

Also: Pontiac 3.8 Litre SOHC Six cylinder and Jaguar 3.8 Litre DOHC XK six cylinder

hobbymechanic
Passenger

262 CI used in the '76 Chevy Monza

Will6er
Passenger

My favorites - 302 GMC

                         292 Chevrolet

Roninaz
Passenger

Great!  Please do the same for the 6 popers, the GM 250 and 292 in-line 6's were true legends for torque and longevity. 

pdeg
Passenger

Missed the Pontiac 400 from the list of 400's

hunternaf
New Driver

GMC also had a 401 CID V-6

normrey
New Driver

Misssed the 60's Cadillac 429, and of course the Ford 429.....

Rk2plus2
Pit Crew

You left out the most famous 400 in my opinion. The Pontiac 400 powering GTOs, Firebirds, Grand Prix and land yatchs from '67 to '79.

Transamric
New Driver

Some how you missed the obvious mention of Pontiac in the 400 engine section.

And with Pontiac, they also built a 265 version for two years matching the longevity of Chevy's 265.  

wd
Passenger

I might have missed it in the text but I didn't see mention of the 409, at least there was a song about it.  The Beach Boys sang " She's real fine my 409."

Grace
Hagerty Employee
flyingfarley
New Driver

You forgot 289 ford, and studebaker 289

Also Mopar made a 350 as their first big block LB motor in  1959 I believe

249 ford and 429 cadillac

Buick 340 and Mopar 340

TA400
Passenger

400:  But wait there is more. Were is the Pontiac 400. This motor was born as a Performance engine. For 1967, Pontiac bored the 389 out to 400 for GTO and new Firebird.  And there were several versions of that Pontiac 400. In 1968 Pontiac lowered the compression, but a 2 barrel carburetor on it and for many years it was the base motor for many of the Pontiac models. And how can you leave out all those factory installed "Ram Air" versions and the over the parts counter Ram Air IV and V. And when times were a changing and the 400 had to be phase out. Pontiac came up with the W72,  it was again a performance engine installed in the 1979 WS6 equipped Trans Am and Formula. So much like Chevrolet's 350, Pontiac's 400 did it all. But best of all, Pontiac's 400 came into automotive history as a performance engine and died as a performance engine.      

Brandan
Hagerty Employee

The 400 is mentioned and linked to in the story.

https://www.hagerty.com/media/archived/pontiacs-6-6-liter-400-v-8/

DanM
New Driver

Let's not forget about the 1958 Dodge/Plymouth 350.

DanM

Huntz-Hall
Pit Crew

Ford 401 CI from 1961 ?

ofenn
New Driver

500 Cadillac

t150v666
Passenger

The nail valve, not nail head also came in a 425 version.

JM
New Driver

Hey nobody ever called the buick engine "nail valve"

They were great nailhead engines...

 

t150v666
Passenger

Back in the fifties and sixties they did. The valves were so small (don't remember if it was the intakes or exhaust, or both) they resembled nails, hence the "nail valve"

JM
New Driver

Thank-you for the great nostalgic history. 

Is it me or was there two 426s, one with the Hemi ( spark plugs in the middle) heads and one with a " normal looking" valve cover? JM 

Brandan
Hagerty Employee

Yes, there was a 426 wedge as well as the Hemi.

AJ
Passenger

The 302 showed up in the 1968 GT40.

drjim
Detailer

No 400 Pontiac?

 

Shame on you.....

don
New Driver

351, not quite the same idea, but Ford had 3 engines with the same displacement 3.5X4  351W, 351C and 352 FE all 351s or 352s but the same size.

Bradysdad
Passenger

Thanks for the info. Interesting stuff. But what about the iconic Chevy 454 of Corvette and Chevelle SS form as well as the Caddie 501 which was the largest displacement of its time. 

ChettKW
Passenger

Tell me about the 283 Chevy engine. I have one in my 1961 Apache 1/2 ton

ChettKW
Passenger

What about the Cadallic 572?

FN-Olds
Passenger

Isn’t a 455 a stroked 425 Oldsmobile.?