The L2456F piston is a forged TRW piston designed for the 351 Windsor engineL2456F PISTON FORGED TRW STANDARD BORE SINGLE 351 WINDSOR FORDSKU: RS-2456F$80.00PriceQuantity*Add to CartBuy NowInfoThe L2456F piston is a forged TRW piston designed for the 351 Windsor engine. Here are some key specifications: Type: TRW forged piston Bore: .030 overbore Compression Ratio: Can set from 9.0 to 11.4 depending on head and work done Applications: Suitable for budget builds and high-performance applications. 2