Engine weights across manufacturers

[GrabberOrange69]

I was looking for a basic weight on a “B” engine and came across this. The numbers after the weight appear to be dimensions. Also the list predates the Gen 3 HEMI, and I don’t see the LS, or Coyote.

Chevy small block V8 575 (generic for '60s-'70s motors)
Chevy small block V8 535 ('59 Corvette 283 w/alum.intake)
Chevy V8 348/409 620
Chevy big block V8 685 Mark IV
Ford flathead V8 525
Ford flathead V8 569 ('53 239 CID)
Ford Cosworth DFV 353
Ford SOHC modular V8 530 26.9 28 28.6 (473 w/out accessories)
Ford DOHC modular V8 464 27.1 28.9 29.6 (437 w/out accessories)
Ford 255 Windsor 468
Ford 289/302 V8 460 24 29 27.5 (late 5.0s are a bit lighter)
Ford BOSS 302 500 24.5 29 28.5
Ford 351 Cleveland 550 25.5 29 29 (includes BOSS and Australian 302-C)
Ford 351 M/400 575 26 29 29
Ford 351 Windsor 510 25 29 29
Ford Y block V8 625 (272-312 CID)
Ford FE big block 650 27 32 29 (332-428 CID)
Ford FE big block 670 27 32 29 ('59 352 CID)
Ford 427 SOHC 680 32 34 30
Ford 429/460 V8 720 27 34 29
Ford BOSS 429 635 30 34 30
Mopar 273-340 "A" V8 525
Mopar 360 "A" 550
Mopar 361-383-400 V8 620
Mopar 413-426W-440 V8 670
Mopar Street Hemi 765 (690 bare)

 

[Lefty71]

Very cool info.... no wonder 5.0 family splits in half if you mod them too hard.... maybe too much weight savings in the valley tray and upper main area???

 

[wagonman]

Just shipped a bare boss 302 block, with the crate was less than 150lbs. Main caps were shipped separatly.

 

[69 Sleeper Bee]

I wonder how much a 318 Poly weighs ?
They look huge under the hood.

 

[GrabberOrange69]

The surprise for me was the heifer the Ford Y block is at 625 lbs for 312 cubes!

 

[GrabberOrange69]

I wonder how much a 318 Poly weighs ?
They look huge under the hood.

Hmm, yep not there.

 

[66 Sat]

I wonder how much a 318 Poly weighs ?
They look huge under the hood.

Hughes Engines website lists the Poly at 600 lbs (estimate).
In my Brooklands Book for the Chrysler Small Block, one article on the 273 when it was first released says a 40 lbs saving on the block and 12 lbs on the heads. Another says 55 lbs saving overall.
If the 55 lbs is correct plus the 525 lbs for the 273-340 = 580 lbs. The width is all in the heads, the block is the same dimensions as the LA, just a heavier casting.

 

[Runcharger]

Hemi wins again!

 

[69 Sleeper Bee]

Hughes Engines website lists the Poly at 600 lbs (estimate).
In my Brooklands Book for the Chrysler Small Block, one article on the 273 when it was first released says a 40 lbs saving on the block and 12 lbs on the heads. Another says 55 lbs saving overall.
If the 55 lbs is correct plus the 525 lbs for the 273-340 = 580 lbs. The width is all in the heads, the block is the same dimensions as the LA, just a heavier casting.
View attachment 1085950

Awesome picture of an actual 4 barrel poly
I have the 318 poly 2 barrel in my 63 Belvedere but have been looking for the 4 barrel intake and evidently they are rare.
I see plenty of dual 4 barrel intakes but that is a bit extreme but cool at the same time.

 

[MoparLeo]

Here is another source.
http://www.carnut.com/specs/engdim.html

 

[dvw]

How can a 360 weigh +25lbs over a 318/340? Not sure all these numbers are completely accurate.
Doug

 

[WileE]

How can a 360 weigh +25lbs over a 318/340? Not sure all these numbers are completely accurate.
Doug

Possibly due to the smaller forged crank/bottom end vs. the larger cast 360 ?

 

[dvw]

Cast crank is lighter than a forged unit.
Doug