Dart Iron Eagle Assembled Chevy Heads, Angle Plug, 200cc/49cc

							                        

                                                        
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.
Iron Eagle Tech Notes (PDF)
Dart Installation Note (PDF)
Recommended Spark Plug: 14 mm, 5/8" hex, .460 reach, taper seat
 
                                                    

						                        

							                        

                                                        
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.
                                                    

						                        

							                        

                                                        
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.
Dart Installation Note (PDF)
Recommended Spark Plug: 14 mm, 5/8" hex, .460 reach, taper seat
Iron Eagle Tech Notes (PDF)
 
                                                    

						                        

							                        

                                                        
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.
                                                    

						                        

							                        

                                                        
Using proprietary Speed Flow technology, Dart has developed more efficient port designs with improved velocity and flow capabilities. The combustion chambers and ports have been redesigned for greater breathing characteristics and more controllable combustion. Casting walls are cleaner and more consistent, resulting in better control over flow and heat.
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
Iron Eagle Tech Notes (PDF)