The BTR CP Forged Piston & Ring Set delivers premium performance and durability for Mopar Gen III Hemi engines. Manufactured from high-strength 2618 aluminum alloy and paired with Total Seal AP steel rings, this set provides exceptional sealing, stability, and strength in high-horsepower or boosted applications. Each piston is engineered with tight tolerances and advanced machining to ensure precise fit and consistent performance under extreme conditions.

BTRCP-HEMI40901125-DSH-8 Includes:

• Set of eight forged 2618 aluminum pistons
• Total Seal AP Steel 1.2 mm × 1.2 mm × 3.0 mm ring set
• Precision-fit wrist pins
• Wire locks

BTRCP-HEMI40901125-DSH-8 Features:

• Forged 2618 aluminum construction for superior tensile strength and detonation resistance
• Fully CNC-machined crown, ring grooves, and skirt profile for exacting weight balance and repeatable performance
• 4.090 in. bore, 4.050 in. stroke, 6.125 in. rod length, and 1.125 in. compression height
• 12 cc dish design optimized for modern combustion chambers and boosted compression ratios
• Radius-machined valve reliefs to maintain proper piston-to-valve clearance with aggressive camshaft profiles
• Contact-reduction groove and accumulator groove improve ring seal and reduce blow-by
• Pin oilers and double broach pin bores ensure consistent lubrication and pin stability
• Skirt coating minimizes friction and eliminates cold-start scuffing
• Hardened steel wrist pins for high-RPM endurance
• Total Seal AP Steel rings deliver low drag, superior sealing, and longer service life under extreme pressure
• Gas-ported top rings improve cylinder sealing at high boost or RPM
• Napier-style second rings promote better oil control and debris removal

BTRCP-HEMI40901125-DSH-8 Notes:

• Designed for use with 6.125 in. connecting rods
• Check piston-to-valve and piston-to-head clearance before final assembly
• Requires proper ring end-gap setting based on application and power level
• Professional measurement and installation strongly recommended