Manley Performance — Engine Internals for Built Motors
Manley Performance has been forging high-strength engine internals in New Jersey since 1958 — supplying connecting rods, pistons, valves, springs and complete rotating assemblies to NHRA Pro Stock, NASCAR Cup, IndyCar, World of Outlaws and the world's most respected engine builders. SP Engineering carries the full Manley range with 2,700+ application-specific fitments.
Manley Product Lines
H-Beam & H-Tuff Connecting Rods — 4340 forged steel rods rated to 600-1,200+ HP depending on application. The standard for naturally-aspirated and boosted builds. Turbo Tuff I-Beam — Pro-spec rods for extreme boost applications. Platinum Series Pistons — Forged 2618 alloy with skirt coatings, race-spec pin towers and custom dish/dome options. Performance Valves — NexTek dual-pattern, Severe Duty stainless and titanium retainers. NexTek Valve Springs — Single, dual and beehive springs with race-tested rate options. Complete Rotating Assemblies — Balanced kit with crank, rods, pistons, bearings, rings.
Popular Engine Fitments
Honda B-series (B16, B18), K-series (K20, K24, K24Z); Nissan SR20DET, KA24DE, RB25DET, RB26DETT, VR38DETT, VQ35DE; Toyota 2JZ-GTE/GE, 1JZ, 4A-GE, 3SGE, 3UR-FE, 2GR-FE; Mazda B6T (Miata), 13B Rotary; Mitsubishi 4G63T, 4B11T; Subaru EJ20, EJ25, EJ257; Ford 5.0L Coyote, 4.6L/5.4L Modular, EcoBoost; GM LS1–LS7, LSA, LT1/LT4, 2.0L Ecotec; Chrysler 6.4L Hemi, 6.2L Hellcat; BMW S54, S62, S65, S85, N54, N55.
Built-Motor Spec Help
Email sales@sp-power.com with your engine, target power, fuel grade and intended use (street, drag, road race, drift). We'll spec rod material/length, piston dish/dome, valve spring rate and bearing clearances.
SP Engineering — Authorized Manley Performance dealer since 1996.
