DSS 6.1 Small Block Mopar Hemi Gen III FX Series -18cc Dish Top Gen III Hemi Forged Piston Set 4.090

Upgrade your engine with DSS FX Series forged pistons, designed for durability and performance. Featuring a -18cc dish top design, these pistons deliver precise compression ratios tailored to Gen III Hemi applications.

Piston Specifications

Piston Top: -18cc Dish Top Gen III Hemi
Approximate Compression Ratios:
- Chamber 65cc: 9.41 to 1
- Chamber 74cc: 8.65 to 1
- Chamber 85cc: 7.9 to 1
*For accurate compression ratios, use a compression calculator for precise adjustments.*
Engine Compatibility: Mopar Small Block Hemi Gen III
Engine Size: 6.1

Technical Details

Cylinder Bore Size: 4.090 in (103.804 mm)
Ring Groove Width: 1.2/1.2/3MM
Compression Height: 1.210"
Pin Diameter: 0.927"
Connecting Rod Length: 6.243"
Crankshaft Stroke: 3.578"
Cylinder Head: Gen III Hemi
TDC Assembly Height: 9.242" (Zero Deck Height)

Performance & Compatibility

Designed for Mopar enthusiasts, this piston set offers high strength and optimized performance for 6.1 Gen III Hemi engines. Perfect for performance builds requiring precision and reliability.