Since the motor is 378 cubic inches I thought this might qualify as a big bore
http://s26.photobucket.com/alb...¤t=outside.jpg
http://s26.photobucket.com/alb...w¤t=inside.jpg

With 436 hp is sure is a hoot to drive! Car is an 09 Corvette Coupe, 6 speed with the 3LT package, chrome wheels, dual mode exhaust and Z51 suspension package. Best of all it is averaging 19-20 mpg around town even when I keep my foot in it

Big blocks started at 396cu.in. back when I was zipping around NYC streets 1/4 mile at a time.

A 378 would hsve been derided as just a bored-out small block.

Still, that's a handsome car. It's got a bit of a Ferrari look in profile.

George

Darned!

Cobra replica w 425 hp 347 CID Stroker (weighs 2200 pounds)



GT40 replica w 506 hp 355 CID (weighs 2400 pounds)




Oh well ... guess they're just light weight medium bores.

George,
Good point. But how things have changed. Even the new 427ci motor in the Z06 Corvette is now considered a "small block".

Maybe size really doesnt matter after all

mstarling,
Sweet ride, I bet that thing will really scoot!

GeorgeS,

Chevy had the 348 and 409 series of "big blocks" before the 396, 427, 454 series. Ford also had the 352, 390, 428 series and Chrysler had the 383 and the original smaller hemi big block but I forget the CI on that one.

So 378 is close even if it is a small block.

Nice Corvette.

BigB

Original Hemi was a 392 CID engine.

A nice 'Vette indeed!

Mike,

I am damn sure diggin' that Cobra. My favorite of all the real muscle cars. Sweet package.

Oh, the Vette ain't bad either. Actually it's a badass. No getting around that.

David

Nice, Snowwolf!

1800 HP and 2200 lbs

Grocery Getter

Nice. The current Corvette engines are considered small blocks because that IS what they are! Even the 427 Z06 motor is a small block NOT a big block even though is has the same displacement as the 1967 to 1969 big block. The current Z06 is a bored and stroked 5.7 liter small block, with miniaturized big block racing heads, basically.

The only big block GM still makes in a production vehicle is the 8.1 liter pick-up engine.

quote:

Originally posted by ScottS:
Nice. The current Corvette engines are considered small blocks because that IS what they are! Even the 427 Z06 motor is a small block NOT a big block even though is has the same displacement as the 1967 to 1969 big block. The current Z06 is a bored and stroked 5.7 liter small block, with miniaturized big block racing heads, basically.

The only big block GM still makes in a production vehicle is the 8.1 liter pick-up engine.

Z06 architecture has nothing to do with the old small block. Totally different design and no interchangeable parts. The 8.1 engine hasn't been available in pick-ups for years.

Mac,

That's what I thought on the 8.1. Nowdays it's 6.0 or Duramax. Mine's got the big bore. One of the newer ones with that goofy "blunderburst" (sp) megaphone tailpipe.

GM, to my knowledge, hasn't used the 5.7 (350) platform since around 99 or 2000, when the "modular" or whatever they called them, engines were introduced. But I could be way off on that one. But not in the trucks anyway.

David

David

I think all the HD pick-ups are 6.2's now too. I haven't kept up with GM's wares for a while as I don't need a truck anymore. I had some Corvettes and pick-ups a few years ago.

I have the 8.1 in one of my boats and it really flies and does pretty well on the fuel. Have the same motor in my 30 foot RV and the dang thing will still average low 9's mpg.
I think they are still building it for boats and rv's.

Nice to see we have some gear heads in here as well

OK here is my PRO Stock Toy. Jerry Bickel built car.Has gone 210 at 6.92 et. 632 Eagle racing motor about 1800 RWHP weight 2500lbs. I live 12 Miles from LVMS. My bone stock Zo6 with MT drag radials has gone 11.185. My supercharged viper with 657 RWHP has gone 10.65.-Rob

quote:

Originally posted by BigB:
GeorgeS,

Chevy had the 348 and 409 series of "big blocks" before the 396, 427, 454 series.

BigB

Yup, I remember the 348 and 409, but there were hardly any on the street in '78-'81, at least in NYC.

George

LOL what is the pro stock cars name... "Overkill"

You are having too much fun.

I have to say I am with George S on this.

Back in the day, Big Blocks were the 409, later the 396/427/454 in the Chevy, 427 in the Ford, and 426Hemi/440 in Chrysler.

The 401 Buick [how many of you remember that??] and big Olds 442 engines were pretty good as well.

Dare I weigh in with a "cat"? My XK-8 convertible is the standard 4.2 litre DOHC 4vpc 300HP version. I got a brochure from the Jag dealer in Boise suggesting it is about time to trade in on the new 2010 XKR-8 with its 500+ bored and stroked full 5 litre V8. I got to send Boomie a picture to post here.

Rich
Buff Killer

You guys are bringing back old memories.
My first car was '69 Ford LTD - pale yellow with a black vinyl top. The only thing going for it was the 429 under the hood. In the Summer of 1977, I spent all my time and all my money putting in a Cobra Jet cam and pistons, and an Edelbrock manifold with twin four bangers. "Sleeper" hardly begins to describe that car, Lord it was fast.

I guess those days are gone for kids now.

No Idaho, don't dare weigh in. You are a Cape buffalo killer now. A step above cars.

quote:

Originally posted by ForrestB:
You guys are bringing back old memories.
My first car was '69 Ford LTD - pale yellow with a black vinyl top. The only thing going for it was the 429 under the hood. In the Summer of 1977, I spent all my time and all my money putting in a Cobra Jet cam and pistons, and an Edelbrock manifold with twin four bangers. "Sleeper" hardly begins to describe that car, Lord it was fast.

I guess those days are gone for kids now.

Actually kids (me included) have it pretty good nowadays. Either Car & Driver or Motor Trend recently posted something about the "good old days". With the poor aerodynamics and skinny tires of the muscle cars most were not as fast as we remember them to be. They magazine reported that an 09 Honda Accord 6 banger would beat the 0-60 and 1/4 mile times of 95% of the muscle cars ever produced. Interesting but true.
If you know of someone who collects old car magazines research and do some reading of the old performance numbers. It's interesting to say the least!
But ya gotta love that torque of those huge big blocks!

My "crew" is called Overkill Racing! I'll have to post a pic of the emblems.-Rob

Used to watch the Cobras and the Chapparals go round and round at Sebring. Nothing like the sound of a big V-8 wound up very tight. Growlers, all.

That "grocery getter" thing looks like it has a Nevada plate on it...

Jetdrvr,

Went to undergraduate school at USF. In the '64-'68 time frame I watched the Fords, Chappies, and Ferraris battle it out at Daytona and Sebring. Some of us were Pit Stewards at the Daytona Continental (as it was called in those days). Is where I got hooked on Cobras and GT40s. The sounds were AMAZING!

Saw Smith do 199.8 mph on the backstretch at Daytona in a COBRA! (That fella had Cajones!)

Remember the Chappy-Mark IV battle at Sebring? Run'm until they SMOKE!

Wonderful days! Almost as good as hunting Cape Buffalo.

Mike,

The Cobras had the 427 SOHC Ford motor as I recall. A buddy had one in a Fairlane drag car back when we used to race. It was fast for its day.

BigB

The racing Cobras had a 427 side oiler push rod engine. Some street Cobras were fitted with 428 CID V8s. The engine you're thinking of is the Boss 429 SOHC ... also known as the SHOTGUN ... was physically too large to go into a Cobra. Was primarily a drag engine. A real MONSTER!

Glad do see that fiberglass from Bowling Green, Kentucky made it all the way to Alaska, looking good.
Cobras:

Anymore "Lore of the Big Bore Mustang" out there? Guess I'll do the google.
I am feeling nostalgic about Ford Mustangs.
Of course it will have to have an 8-Track stereo.

Here is one of my Vettes. Its a 67 with a 383 with a callies crank, Brooks rods and pistons,brodix heads, gear drive and side pipes by yours truly. I've had the car 25 years and Overkill racing built the engine. I used to hammer it in the Nostalgia drag racing meets. Now it just terrorizes the Ricers. ITS LOUD,but sounds WONDERFULL! It just got a first place in a WSCC car show at Freemont street in LV.-Rob

quote:

Originally posted by mstarling:
Original Hemi was a 392 CID engine.

The original Desoto hemi was introduced at 241 cubic inches.

Chrysler's '51 hemi 331 ci

I have to agree with George; engine block sizes being called big and small started in '65 with Chevy's 396. I don't ever recall the W head engines called big blocks before '65.

Dave,

True ... the big Hemis of the era (1957-58) were 392s. For a relatively complete history see:

http://classichemi.com/index1.shtml

Mopar also had 413 and 426 Wedge engines in transition to the 426 Hemi.

A relatively popular hotrod variant was the 440 Max Wedge ... which was 426 Wedge Stage II or Stage III heads on a 440 RB block. Was often fitted with a wide aluminum dual log plenum ram intake mounting 2 750 AFBs. Mine was built with a modified forged Kellog Hemi crank, 440 sixpack rods, and Arias forged aluminum pistons loaded into a 1969 Roadrunner. Would turn 8500 rpm easily any day. Was wonderful fun on the street!

I like the lighter weight route myself...
Lotus 2-11
Allegedly one of 34 in the US
1500 lbs, 260 HP, 1.8l supercharged 4 cyl


Here's a video on the Kart track

Some fun (should I post this in the "Small Bore" forum?)




And the tow vehicle!

4.4l Twin Turbo V8 400 HP, 5200 lbs. with 4 guys and a tank of gas it was closer to 6K

Guess I need to post some pics of my little '68 Barracuda street car. The 346-inch normally aspirated small-block made 530 horses at the wheels........





Okay, back to guns.......

Need a little estrogen to counteract some testosterone here?



I just can't get enough of those Mustangs.

I have a Yellow Mustang and a 6 foot blond at home (really I do) but look at that nice fence and those trees too!! Never see anything like that around here ...

Looks like a Kentucky horse farm to me.
Congratulations on your good taste.

quote:

Originally posted by RIP:
Looks like a Kentucky horse farm to me.
Congratulations on your good taste.

Why thanks - I've always liked the look of horse farms...

Here is a pic of the 632( This is a BIG BORE-World Products Al- Block) with Dry sump Tank and vacumn pump, just before we swapped motors a week ago. The car comes apart like a tinker toy due to the miracle of Drueze clips.-Rob

VROOM!