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Built Motor GuideEngine Specifications
N20 & N26 Part Cross Compatibility List
This page lists parts/engine designs that are similar in the N20/26 with the N55, N54, and S55.
Legend
Identical for given platform
Not identical for given platform
| N20 Parts/Specs | N54 | N55 | S55 |
|---|---|---|---|
| Engine Bore Spacing of 91mm | |||
| Engine Bore Size 84mm | |||
| Engine Stroke of 90.091mm | |||
| Displacement of 121.86 CID or 1.997L | |||
| Connecting Rod Length 144.35mm Centre to Centre | |||
| Connecting Rod Bearings | |||
| Same Conrod Design | |||
| Same Conrod Material | Yes (prior to F series N55) | ||
| Same Main/Crank Bearings | |||
| Same Conrod Bolts | |||
| Same Head Studs/Bolts | Yes only the 11mm Bolts/Studs | Yes only the 11mm Bolts/Studs | |
| Same Intake Port Shape/Design and Dimension | |||
| Same Exhaust Port Design | |||
| Timing Chain Guides | No, Extremely close however | No, Extremely close however | |
| Identical Crank Hub | No, Extremely close however | No, Extremely close however | |
| Identical Engine Timing System Components | No, Extremely close however | No, Extremely close however | |
| EWG Solenoid | |||
| PWG Solenoid | No, can be retrofitted for N55 Turbo Swaps | ||
| FMIC | |||
| Intake Valves | Same dimensions, but uses different material | ||
| Valve Springs Intake | |||
| Valve Stem Seals | |||
| Valve Guides | |||
| Valve Locks/Collet | |||
| Valve Spring Plate Intake | |||
| Intake Valve Rocker Arm | |||
| Exhaust Valves | Same dimensions, but uses different material | ||
| Valve Springs Exhaust | |||
| Valve Spring Plate Exhaust | |||
| Valvetronic/Valve lift Spring Tension Support Plate (OE 11377583781) | |||
| Exhaust Valve Rocker Arm | |||
| Intake Camshafts Dimensions (Duration, Lift) | |||
| Exhaust Camshaft Dimensions (Duration, Lift) | |||
| Intake and Exhaust Vanos Adjustment Range | |||
| Exhaust Side Hydraulic Lifters | |||
| Intake Side Hydraulic Lifters | |||
| Intake Valve Lift Variable Rocker Arms |