ArcticZ28

iTrader: (14)

Just wondering how much a typical off the shelf piston weighs.

Studytime

iTrader: (15)

Thanks to Thunder Racing,

https://ls1tech.com/forums/generation-iii-internal-engine/65090-piston-weight-comparison-stock-bore-size.html

(Notice the date this thread was posted)

Ben T.

ArcticZ28

iTrader: (14)

Thanks for the link. They're saying a stock piston only weighs 1.3 pounds (600 grams)?? Wow. For some reason I thought they would weigh more than that. However, I don't see any information on Diamond pistons. Anyone have any info on those?

slow trap

iTrader: (22)

wow,i would have never in a million years thought a lunati crank would be lighter than any other crank.i alway's heard lunati stuff was bulkier/heavier but that was on sbc stuff also.

Tony Mamo @ AFR

iTrader: (13)

Depends on bore size, compression height (determined by stroke and rod length), etc., etc. but the bottom line is that an "average" aftermarket piston will weigh somewhere in the neighborhood of 370-400 grams....a little less than 1 lb. Note this weight does not include the wrist pin which is about 110-120 grams. Stock weighs about 425 grams btw....

Hope this helps...

Tony

ArcticZ28

iTrader: (14)

I had no idea aftermarket pistons/cranks were that much lighter. I learn something new every day. Thanks for the info guys.

Ferocity02

iTrader: (60)

My 427 Diamond pistons were about 450 grams each IIRC.

Randy WS6

iTrader: (69)

My LS2 4.030" ROSS 364.5 grams flat tops with 6cc valve releafs.