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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
brown7373
Passenger

You mentioned the Pontiac 400 in the 428 section, but not in the 400 section.  The Pontiac 400 was first used in 1967, replacing the 389, and it continued in use well into the 1970s.  How did you miss that?

Brandan
Hagerty Employee

It got its own article on 6/6 and was is linked in the story.

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

ed
Detailer

My brother had a '60s Fairlane with a 260 V-8. and I had a '71 Lincoln with a 460.

BWeston
Pit Crew

Packard had a 352 cubic inch V8, as did Ford.  Before their V8's in 1955, Packard had a 327 cubic inch straight 8 - match to displacement of Chevy 327 V8 - and a 288 cubic inch straight 8 - close to a Ford or Studebaker 289 V8 in displacement.

quaybon1
Pit Crew

The 383 was a Mopar engine. It was used in nearly all car and truck models except Dart and Valiant. Whenever that engine is mentioned, I think most think of Mopar.

Boyboat
Pit Crew

Same here

craftsman
Passenger

The 383 was an option on 1967-69 Darts (GTS).  I think Mopar when I hear 383, too.  Maybe 383 is a Chevy thing in the drag racing crowd, but I never heard of it before.

Jim86
Pit Crew

Right. But the article was about the same displacement engine built by different manufacturers. Lincoln and Mercury had a 383 from 58-60.

quaybon1
Pit Crew

The 383 was a Mopar engine, used in most mid and full size cars and trucks in the 60s and 70s, including Barracuda, GTX, etc. Pontiac also had a 426 in the 60s in its full size models.

Brandan
Hagerty Employee

Pontiac had 421 and, as mentioned, 428, but no 426.

GEARHEAD3
Passenger

Hard to believe not one mention of the Pontiac 400 ci.

dooscoop32
Intermediate Driver

Buick made a 300 CI V8 and Ford made a 300 CI 6-cylinder.

Boyboat
Pit Crew

401 was not the largest nail head. 425 nail heads were in the 64-65 Buick Riviera's. 

Jim86
Pit Crew

And optional in Wildcats and Electras when introduced in 1962. 425 was standard in the 66 Riviera only. 66 was the first and only year the "new" Rochester Quadrajet carb was used on the nailhead. Same carb was used on the 65 Chevy 325hp engine.

Deweyiii
Passenger

Buick had the 340 in '66 & '67 along with Mopar.

Skipe
Pit Crew

Also a 327 Packard straight 8

jglandi
New Driver

Hmmm how about the Cadillac 472 and then the 500 ?

jglandi
New Driver

How about the Cadillac 500 cubic inch-- 1970 introduction

Jim86
Pit Crew

No other manufacturer that I know of shared that displacement. That's what this article was basically about.

dooscoop32
Intermediate Driver

Ford made the 292 CI Y-block V8 and Chevrolet made the 292 CI 6-cylinder.

Clarkie
Pit Crew

390 and 429 were in Cadillacs too.

Scout800a
New Driver

What about the 289 from both Ford and Studebaker??

Bradysdad
Passenger

Vs the 283 Chevy

Clarkie
Pit Crew

Buick and Olds both had 425s as well.

CraigCopple
Pit Crew

Great article as it was packed with information on the displacements and I learned something today.

frankscar
Passenger

How about the 389 Pontiac GTO's power plant

Jim86
Pit Crew

The other 389 was a Ford medium duty truck engine.

 

66_425_Nailhead
Passenger

Excellent article.  Of course, the nit pickers will descend, including me.  What happened to the Buick 425 nail head sitting in my Riviera?

Huntz-Hall
Pit Crew

Yup, I missed that one in my earlier comment about the Ford 401 CI but that may been HP with the 390 with trip carbs ?

3Deuces
New Driver

Hold yer' horses ... what about Pontiac's 400?

Stradakat
Pit Crew

Yep that was a BIG miss.  Three letters for you — GTO.   SHEESH!

Brandan
Hagerty Employee

The author owns a Pontiac 400, FYI. 

Hodag
Pit Crew

Would have like to hear about the 455SD engine in this listing.

adougphys
Passenger

I understood that the Mopar 360 was the same big block as the 383, etc. The common 318 was the small block that could be had inas much as a 361 cu. in. version.

craftsman
Passenger

Nope, the 360 was an LA small block, more like a stroked 340, but it replaced usage of the 383 in (at least) some cars.

strokercuda
Passenger

The Mopar 273, 318, 340, 360 were all small block engines. In 1958 Mopar  built a 350 big block, which eventually grew into 361, 383 and 400 low deck engines.

brngarage
Passenger

As some have said, Chevy 383 was not a production engine displacement. Also, Edsel used a 361 in 1958.

TinCanSailor
Intermediate Driver

In the 1950s, the first "B" block MOPAR engine was a 350.

Spencer
New Driver

The first B Mopar block appeared in the 1958 Plymouth Fury at 350 CID

Spencer
New Driver

Regarding your 383 bonus here's a 383 bonus bonus.  The Mopar 383 was built in both the B block and also the RB (raised B block).

strokercuda
Passenger

Yes the first version of the Mopar 383 was the first RB block.

Tony
Pit Crew

Todays 383 Chevy SB has the same bore and stroke that the RB 383 Chrysler had in 1959 - 1960.

Cpmunschy
New Driver

289.... Ford and American motors Avanti

Cpmunschy
New Driver

Sorry Studebaker Avanti

jeepman1
Pit Crew

AMC terrified the racing world with the small block 401 I think the big three had something to do with its quick demise..

Jim86
Pit Crew

Didn't see  the 425. Article says the 401 was the biggest Buick "nailhead". The 425 was. Produced from 1962 -66.Also, the 425 Olds from 65-67(?) and the 425 Caddy from 77-80(?).

AmishMike
Passenger

Just picking a few ranges....

in the 300ci range

300 Buick

301 Pontiac

302 Ford, Chevy, Lincoln/Ford

303 Olds

304 AMC

305 Chevy

307 Chevy, Olds

in the 320's

320 Packard

322 Buick

324 Olds

325 Chrysler

326 Pontiac

327 Chevy

330 Olds

331 Cadillac, Chrysler

420's

421 Pontiac

425 Olds, Cadillac, Buick

426 Chrysler

427 Ford, Chevy (2)

428 Ford, Pontiac

429 Ford (2)

430 Buick, Mercury

50caddy
New Driver

Cadillac had a 390 from ‘59-‘63.  The ‘63 390 was brand new and evolved into the 429, 472 and 500 cubic inch versions.  

TimK
Detailer

There is a 3rd 351 variant. The 351M for modified looks like a 351C but the two engines have very little in common. I'm not sure if he heads or intakes (2bbl engine or 4 bbl engine) will interchange but the 351M block shares it's design with the 4"x4" 400M, has a different bolt pattern for the transmission and motor mounts are different. It even takes a different starter. A transmission for the 429 and 460 big blocks as well as the starter bolts to the modified block. I believe the fuel pump is the only thing the Modified block has with the Cleveland. 

blueox76
Pit Crew

Yes, even though Ford called it a "Modified Cleveland", and the 400 is also considered to be in the Cleveland family, neither engine is very much like the original Cleveland, which was a great performance machine. Yes, the M is considered a big block, which is why it uses the transmissions and bellhousings with the big block pattern. I consider it an engine built with low compression in response to the newer emissions standards, and generally and undesirable mill, unless you want to do major mods to it. I don't believe it came in anything other than pickups, and only with a 2-barrel carb.