Crank Weights

[A/MP]

Does anyone have the factory weights for a forged 273 crank and a forged 340 crank? Thanks

 

[1wild&crazyguy]

Do you mean bob weight?

 

[dodgetkboy78]

I think he means how much they weigh.

The 273/318 crank was lighter, but the actual poundage, (hehe, love that word) I am not sure. And don't know where to get that info.

 

[A/MP]

I'm looking at total shipping weight of the cranks. To get a newer 904 to fit a 273 crank you have to drill the pilot hole bigger. Also the cycles of a 273 crank is just in years at least 5 yrs. more. For stock eliminator racing less reciprocating weight means better et and mph. I'm trying to factor many variables. Thanks

 

[1wild&crazyguy]

Well hughes has'em listed as weighing the following

318 cast 52lbs
340 forged 56lbs
383 forged 66lbs
400 cast 64lbs
440 cast/forged 69lbs
451 crank cast/forged 67lbs
4.15 stroke MP 75lbs
4.25 HEI steel 63lbs

 

[rmchrgr]

I just went out and weighed my forged 273 crank for you, I got 55.6 lbs.

According to the list above, this would be the lightest factory forged crank.

Remove some material from the pilot bore and you're obviously a few ounces less.

 

[perfacar]

hi, I weighed all my cranks, 273 & 340 both weigh 56 #, 340 cast weighs 52 #
cast are usually 4 # lighter. I weighed mine for my new srocker motor.
besides, the total piston /rod, ring combo has to meet a min. weight.

 

[A/MP]

Thanks for the imput!