Standard Weight of a 440 Piston & Wrist Pin?

[6T8 Charger]

Can anybody confirm the weight of a 1977 Dodge 440 standard piston and wrist pin? I asked Grok and it said 1086 grams. Reason: I'm rebuilding a 440 motor and I need to find a set of pistons with a similar weight so I don't have to rebalance the crankshaft. The scrapper got my stock pistons and wrist pins, so I can't weigh them.

 

[69Bee]

If you are using "Stock Replacement" OEM style pistons, you will be fine; no need to rebalance. If you plan to use forged custom pistons or KB possibly. An aftermarket crank or rods, then you will need rebalancing.

 

[1968rt]

Part# CH Weight Pin Wt CCs Deck Ht TRW / Speedpros are close in weight



L2266F 1.991 876 225 0 flat top .090

L2355F 2.061 872 225 -7cc .020

L2388F 1.926 819 225 0 flat top .155

L2295 2.029 817 250 13.1cc .140 dome .051

7025P 2.050 815 250 13.1cc .140 dome .051

L2286P 2.034 876 225 0 FLAT TOP .048-.051

 

[lewtot184]

1080 is about right. Over bores will be heavier. 8:1 may be lighter. Service manual for a 10:1 states 857.5 for the piston,. Last time I weighed a stock pin it was around 235grms.

 

[6T8 Charger]

I think I've got this figured out. I'm going with the Speed Pro L2355F30 pistons & pins. I called Speed Pro and the tech said the piston weighs 872g and the pin is 220g = 1092g
The factory piston is 858g + the pin weighs 235g = 1093g. I think I can get away without balancing.
Thanks to everybody above for the info.

 

[Geoff 2]

I weighed a stock piston & pin many years back & it was about 1100 grams.

 

[lewtot184]

Balancing an engine is not an exact science.