A big, light, 5.0 Ford engine.

[pdq67]

Maybe I asked this before, I forget?

How big a 5.0 Ford engine can you build using either an aftermarket cast-iron/ductile-iron or an aluminum block?

A max. cube, small, lightweight engine. One that could be installed in a rear wheel drive Chevette 3-door. And I know a SBC will fit too, but whatever...

I'm dreaming again is all..... He, He!!

pdq67

[Joe-71]

4.185 x 4.185 x 3.5" x 6.2832 = 385.159 cubic inches with Dart block. More stroke will give larger cubes, and a Man-O-War block at 4.200" bore will also. Joe-71

[paulzig]

Maybe I asked this before, I forget?

How big a 5.0 Ford engine can you build using either an aftermarket cast-iron/ductile-iron or an aluminum block?

A max. cube, small, lightweight engine. One that could be installed in a rear wheel drive Chevette 3-door. And I know a SBC will fit too, but whatever...

I'm dreaming again is all..... He, He!!

pdq67

The easiest way with off the shelf parts would be a 4.125" bore and a 3.4" stroke in a Dart block to make a 363.. There is an off the shelf 3.5 crank and a shelf 4.165 piston so that will get you a 381 odd... You can go more with all custom parts, and grinding for clearance

[fastblackracing]

If you step up to a 351 based block you can to 450+ inches with only a
small physical size increase and the cost would be very close to the 5.0 build.

[plovett]

If you step up to a 351 based block you can to 450+ inches with only a
small physical size increase and the cost would be very close to the 5.0 build.

I would say the 351 block is considerably larger and heavier.

[DaveMcLain]

The largest 8.200 deck small Ford that I've seen in person was a 410 inch one that Scott Main built for the Engine Masters. He did that because he wanted to be able to use an after market block along with the CHI heads. This made his engine a "Boss 302" based build which allowed the use of a Windsor style block.

His engine ran very well and survived the contest no problem.

[peejay]

If you step up to a 351 based block you can to 450+ inches with only a
small physical size increase and the cost would be very close to the 5.0 build.

I would say the 351 block is considerably larger and heavier.

Aftermarket 8.2 deck blocks aren't lighter than 351W blocks, for practical purposes. Maybe a couple pounds give or take, but not significantly so. It isn't that the 351W is heavy, it's that Ford shaved a few too many pounds of the production 8.2 blocks.

4.185" with a 3.6-3.7" stroke crank is the largest I've heard from a 8.2 deck block.

[Caprimaniac]

Say aftermarket aluminum block. % weight gain from 8.2 to 9.5" deck is smaller than the gains in cubes say 380 to 460 cui and potential n/a hp.

[plovett]

If you step up to a 351 based block you can to 450+ inches with only a
small physical size increase and the cost would be very close to the 5.0 build.

I would say the 351 block is considerably larger and heavier.

Aftermarket 8.2 deck blocks aren't lighter than 351W blocks, for practical purposes. Maybe a couple pounds give or take, but not significantly so. It isn't that the 351W is heavy, it's that Ford shaved a few too many pounds of the production 8.2 blocks.

4.185" with a 3.6-3.7" stroke crank is the largest I've heard from a 8.2 deck block.

A 351W is also larger, specifically wider and taller. In a Chevette that might be important. That might be why the original poster was asking about 5.0 (8.2") based blocks.

[cab0154]

there is also a point of diminishing returns in terms of power extra stroke will make. the most I would run on an 8.2 would be 3.5, but even then I don't think it would run that much better than turning a 3.4 more rpm.

[fastblackracing]

Go to the bottom right side for exterior dimensions.

Apparently oil pan issues and a heavy front end weight percentage are 2 of the biggest issues with this swap.

PDQ I get a kick out of your posts....if we were close I would help you get your High rpm sbc camaro up and running.....sounds like a fun car to bomb around in......Pretty sure the chevette would be undrivable with any real amount of power and not doing major surgery to set the engine back and rear tubs/good suspension in the rear.

Best wishes.FBR

https://performanceparts.ford.com/downl ... nsions.pdf


SBC for reference.....


http://www.enginefactory.com/chevdimensions.htm

[pdq67]

Go to the bottom right side for exterior dimensions.

Apparently oil pan issues and a heavy front end weight percentage are 2 of the biggest issues with this swap.

PDQ I get a kick out of your posts....if we were close I would help you get your High rpm sbc camaro up and running.....sounds like a fun car to bomb around in......Pretty sure the chevette would be undrivable with any real amount of power and not doing major surgery to set the engine back and rear tubs/good suspension in the rear.

Best wishes.FBR

https://performanceparts.ford.com/downl ... nsions.pdf


SBC for reference.....


http://www.enginefactory.com/chevdimensions.htm

fbr,

I'm glad you do.

Then how about a Vega hatch or Monza 2+2? (And I bought a new '75, Monza 2+2 V-8 4-speed, posi- back then. Engine was a POS, BUT it was a SBC!)...

And use an aluminum 5.0 block and heads for max. weight reduction.

pdq67

[Mark O'Neal]

The biggest 5.0 engine you can build, would be 5.0..

[pdq67]

Just word semantics Mark, but right.

In other words, an aluminum block at say 4.125" b x 3.4" s would be about the easiest/cheapest to make, but not the largest using the 5.0 type 8.2" deck height block.

Make a 363.5" engine.

pdq67

[mag2555]

Ductile iron block?