small block question

[squidbob]

I have a 273 that's apart its stock bore stock crank year 64 I'm a big block guy the only reason I kept it was someone told me the crank is the same as a 340 is it worth anything or is it scrap iron only?

 

[motorpirate]

not scrap... 273 cranks are all forged.

 

[diymirage]

and 273s are way cooler then 340s anyway

 

[squidbob]

I personally liked the pollys but that's me I had a 63 dart with a polly and a 4 speed int it got a lot of weird looks from people

 

[AJ/FormS]

The '64 273 crank is not the same as a 340.
Yes it's forged, and yes it is the same 3.315 stroke. But it is balanced for super lightweight pistons, compared to the 340 forged slugs; 549 gms versus 719gms. Could it be used in a 340? Yes with weigh-matched or lighter-than,273 pistons.. But so can 318 cranks, which had 592 gm pistons, which are pretty darn close to the KB243s at 585gms .
Is it scrap? Not hardly. There should already be a line up forming, of 273 lovers, wanting the whole engine.

 

[replicaracer43]

Is the torque converter register smaller on the 64 273?

 

[383Scampman]

Not scrap . We ran a 340 with 273 crank and rods ina street motor . Need to use lightweight 340 pistons though .

 

[66jim]

Save the adjustable rocker assembly and sell it to me

 

[DesertRat]

Is the torque converter register smaller on the 64 273?

Yes, the change year is 68. 67 down is the same, 68 up should be the same. I had my torque converter build with the smaller register to fit my crank.

 

[65ChargerDart]

Save the adjustable rocker assembly and sell it to me

I have a 273 rocker assembly if you're in the market.

 

[65ChargerDart]

I couldn't give my 273 or components away when I was trying to dispose of it. I ended up selling it for scrap because the cost of crating & shipping made it cost prohibitive to buy. Nobody inquired about the crank...odd.