Are 340’s rare

[william parker]

Why stop at 150?

150 Mandatory starting point

 

[Bubblegum]

The Buick 400 was a 4.04 bore by a 3.90 stroke Fastback tweaker.

 

[toolmanmike]

Square is no magical combination.

 

[mopar head]

The Buick 400 was a 4.04 bore by a 3.90 stroke Fastback tweaker.

Why don`t you be a man and quote the guy?

 

[gdrill]

Dolt

 

[Bodyperson]

That's almost a record. 180 post without an insult. Good read while it lasted.

 

[fishmens67]

OH MY !!!

 

[Bodyperson]

Square is no magical combination.

I'm no professional builder but it makes sense to me that there is some advantage to air flow with a bigger bore concerning valve shrouding.

 

[toolmanmike]

I'm no professional builder but it makes sense to me that there is some advantage to air flow with a bigger bore concerning valve shrouding.

Yes but that has nothing to do with a "square bore/stroke combination"

 

[RustyRatRod]

Ford 400 basically a 4" stroke tall deck 2bbl Cleveland with big block bellhousing.

Some of the first year 400s (1971) had both big and small block bellhousing patterns.

 

[RustyRatRod]

yup...just googled it. T bird, Torino and Trucks!

And LTDs and Galaxies, and Country Squires. The 400 was a very prolific engine for Ford. It was a workhorse. I drive one sometimes every day.

 

[RustyRatRod]

Pretty sure '69 Buick GS 400 was a square engine. Going by memory I thinks its around 4 inch bore and around 4 inch stroke.

4.040" and 3.90".

 

[Cuda Mike]

This must have had a " square" engine.

 

[Owen 340+6]

This is stupid as hell lol

 

[Dartswinger70]

Interesting, I sold a Dart that I thought had a stroker, per person who sold it to me. Well, took said car to my buyer, they drove it, was completely satisfied on how it ran, power output. Told me, "it runs very good" Well, sold the car. Get a call a few days later, seems it is not a 360 stroked, but ONLY a 340. Well, I refunded some money, it is only right, BUT they told me "if it were only a 318 I would not want it" AFTER saying how good it ran!!!!!!!!!!!! What difference the numbers on the block, they look the same.............

This is a very interesting story...seems history is being rewritten now with al the 318 hype nothing has changed with them since the 80s IMO but going forward the guys that have them will want $$$ for them now...I used to get 318/904s for the price of a tank of gas...

 

[Dartswinger70]

I've got 3 standard bore 340 blocks as extras and a couple standard bore 360s. I bought them when they could still be had reasonably.

I had a standard bore 340 block for years I just decided to build it a year or so ago. 'waiting on the heads at the machine shop now to finish it up. The are good when you have them the only guys that talk smack are the guys that don't have them.

 

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[Owen 340+6]

I will trade my turn key 340 for a 426 hemi.. even trade