FF1600 Forged Piston Set, 0.005″ Oversize Pistons for 3.196″ Bore

These forged Carrillo pistons by Ivey Engines are legal for SCCA Formula Ford effective 1 January 2007 per FCS 9.1.1.B.12.e.2. They are designed to be an exact replacement for the Ford pistons, but in a non-standard oversize (3.1925″ OD).

• Forged pistons are more stable than standard cast pistons, which allows them to resist skirt collapse better than cast pistons.
• They fit the 0.005″ oversize (3.196″) bore Kent “Uprated” engine only and are shaped to keep the mandated 9.3:1 compression ratio.
• Set of 4 pistons includes Wire-loc wrist pin retainers and special wrist pins (chamfered to work with the Wire-loc retainers).
• FF1600 Piston Rings for these oversized pistons (Part No. FF1600-161-20-005) sold separately.

Beware of non-compliant pistons! Very similar pistons are currently on the market elsewhere, but only these genuine Ivey pistons are legal in SCCA.

Kent engine blocks started out with a 3.188″ bore and cast pistons. Once forged pistons became available and worn blocks became commonplace through use, the 3.191″ bore size was allowed by SCCA starting on 1 January 2005. After more wear and sleeving on many blocks, the “0.005” oversized” pistons at 3.196″ bore size was allowed by SCCA starting 1 January 2007.