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Harley Evolution Sportster Cylinder Heads Rockers Valves 17579-95 Parts Core

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Harley Evolution Sportster Cylinder Heads Rockers Valves 17579-95 Parts Core photo 1 Harley Evolution Sportster Cylinder Heads Rockers Valves 17579-95 Parts Core photo 2 Harley Evolution Sportster Cylinder Heads Rockers Valves 17579-95 Parts Core photo 3 Harley Evolution Sportster Cylinder Heads Rockers Valves 17579-95 Parts Core photo 4 Harley Evolution Sportster Cylinder Heads Rockers Valves 17579-95 Parts Core photo 5 Harley Evolution Sportster Cylinder Heads Rockers Valves 17579-95 Parts Core photo 6 Harley Evolution Sportster Cylinder Heads Rockers Valves 17579-95 Parts Core photo 7 Harley Evolution Sportster Cylinder Heads Rockers Valves 17579-95 Parts Core photo 8 Harley Evolution Sportster Cylinder Heads Rockers Valves 17579-95 Parts Core photo 9 Harley Evolution Sportster Cylinder Heads Rockers Valves 17579-95 Parts Core photo 10 Harley Evolution Sportster Cylinder Heads Rockers Valves 17579-95 Parts Core photo 11 Harley Evolution Sportster Cylinder Heads Rockers Valves 17579-95 Parts Core photo 12

Description

Up for sale is a pre-owned, genuine original equipment manufacturer (OEM) Harley-Davidson Evolution Sportster Cylinder Head, Rocker, and Valve Mechanics Package. Stamped with factory mold code reference #17579-95, this matched assembly lot was pulled straight from a garage teardown project.
  • Condition Details: Rough, rider-grade pre-owned builder core condition with noted defects. The cast aluminum cylinder head shells are structurally solid with zero cracked cooling fins or blown spark plug plug lines. The valvetrain mechanisms (all rocker arms, shafts, and valve springs) are intact, and the valves are straight and functional. Defects: The rear head's intake manifold mounting threads are stripped and require a Helicoil repair. The combustion chambers display cosmetic ding scars from piston fragments. This lot is a prime candidate for a custom engine builder who plans to clean out the combustion chambers, trim down the high spots, perform mild porting/polishing work, and repair the thread lines to salvage a budget-friendly motor.
  • Platform Fitment Bounds: Direct factory overhaul core or performance custom project motor build package designed explicitly for standard original equipment overhead valve configurations on 1986 to 2003 carburetor-equipped Harley-Davidson Evolution Sportster (XL) and early Buell models:
    • Sportster XL883 Series (1986–2003): XLH883 Standard, Deluxe, Hugger, Custom.
    • Sportster XL1200 Series (1988–2003): XLH1200 Standard, XL1200C Custom, XL1200S Sport (Check dual-plug head geometries).
    • Buell V-Twin Models (1995–2002): S1 Lightning, S3 Thunderbolt, M2 Cyclone running early Evolution-style cylinder head layouts.

Harley Evolution Sportster Cylinder Heads Rockers Valves 17579-95 Parts Core

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Up for sale is a pre-owned, genuine original equipment manufacturer (OEM) Harley-Davidson Evolution Sportster Cylinder Head, Rocker, and Valve Mechanics... Read more

1 in stock

$100.00

      Description

      Up for sale is a pre-owned, genuine original equipment manufacturer (OEM) Harley-Davidson Evolution Sportster Cylinder Head, Rocker, and Valve Mechanics Package. Stamped with factory mold code reference #17579-95, this matched assembly lot was pulled straight from a garage teardown project.
      • Condition Details: Rough, rider-grade pre-owned builder core condition with noted defects. The cast aluminum cylinder head shells are structurally solid with zero cracked cooling fins or blown spark plug plug lines. The valvetrain mechanisms (all rocker arms, shafts, and valve springs) are intact, and the valves are straight and functional. Defects: The rear head's intake manifold mounting threads are stripped and require a Helicoil repair. The combustion chambers display cosmetic ding scars from piston fragments. This lot is a prime candidate for a custom engine builder who plans to clean out the combustion chambers, trim down the high spots, perform mild porting/polishing work, and repair the thread lines to salvage a budget-friendly motor.
      • Platform Fitment Bounds: Direct factory overhaul core or performance custom project motor build package designed explicitly for standard original equipment overhead valve configurations on 1986 to 2003 carburetor-equipped Harley-Davidson Evolution Sportster (XL) and early Buell models:
        • Sportster XL883 Series (1986–2003): XLH883 Standard, Deluxe, Hugger, Custom.
        • Sportster XL1200 Series (1988–2003): XLH1200 Standard, XL1200C Custom, XL1200S Sport (Check dual-plug head geometries).
        • Buell V-Twin Models (1995–2002): S1 Lightning, S3 Thunderbolt, M2 Cyclone running early Evolution-style cylinder head layouts.

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