These complete Dart Iron Eagle Platinum cylinder heads are professionally assembled right here at Speedway Motors. We offer three different versions of each head (Street Ready, Flat Tappet Ready, Roller Ready) to perfectly suit your racing needs.
- Standard 23 degree valve angle
- Standard port location and intake bolt pattern fit most manifolds
- Pushrod holes enlarged for clearance with high ratio rocker arms
- Heart shaped chambers improve combustion efficiency
- Multi-angle intake seats and radiused exhaust seats dramatically increase airflow
- Hardened exhaust seats compatible with unleaded gasoline
- Manganese bronze intake valve guides and phosphorous bronze exhaust valve guides extend cylinder head life
- Spark plug holes are machined for tapered seat 5/8" hex "peanut" spark plugs
- Dual bolt pattern accepts flange mount and center bolt valve covers
Head Application Chart (GIF)
Roller Ready - Please specify cam lift in comments section when ordering.
200cc Intake Runner, 49cc Combustion Chamber