DART 15200136 Cylinder Heads BBC 345cc I/E Head 119cc R/P 2.30/1.88 Assm

Dart iron eagle platinum 23 deg 215cc heads are for big cubic inch, high rpm applications which favor peak power over low end flexibility. Long wearing bronze valve guides, screw-in studs, multi-angle intake seats and hardened and radiused exhaust seats are standard. Best of all, our precision cast ports produce outstanding airflow without time consuming porting.

• Standard 23 degree valve angle allows use of off the shelf pistons and valve train components
• Standard port location and intake bolt pattern fit most manifolds
• Pushrod holes are enlarged for clearance with high ratio rocker arms
• Heart shaped chambers improve combustion efficiency and fit most standard pistons
• Multi-angle intake seats and radiused exhaust seats dramatically increase airflow
• Hardened exhaust seats are compatible with unleaded gasoline
• Manganese bronze 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

• 1968-1972 Small Block Chevy Biscayne 5.7L 6.6L

• Material: High Nickel 220 BHN Cast Iron
• Intake Port Volume: 215cc
• Combustion Chamber Volume: 64cc
• Plug Type: Straight
• Intake Valve: 2.05"
• Exhaust Valve: 1.6"