Standard Bore
Stock 340........................... 719 Grams + 154 Grams {Pin}
Speed Pro Forged ............... 723 Grams + 154 Grams {Pin}
TRW Forged ....................... 720 Grams + 154 Grams {Pin}
Keith Black Hypereutectic ..... 585 Grams + 132 Grams {Pin}
Arias Lightweight ................. 514 Grams + 125 Grams {Pin}
Give or take a few G's.
