Dart “SS” Cast Iron Small Block Chevy Heads
The Dart S/S head is an excellent performing heads for circle track applications like Pro Stock, Super Stock, B Mods, Sport Mods, Limited Late Models and other such classes throughout the country. They also are terrific for street and marine applications.
Features include a thick deck surface for increased durability, machined valve cover area, hardened exhaust seats, efficient combustion chamber design & machined for screw-in studs.
Intake flow on stock SS heads is in the 215-220 cfm range. With “Undercover Porting”, the intake air flow is improved to the 240 cfm area. The exhaust ports will flow close to 140 cfm stock. With “Undercover Porting” they improve to 175 to 185 cfm. We also offer SST- Street Porting and CNC-Sportsman Porting to the Dart SS heads.
And Yes, we can modify our new our used Dart SS heads.
A BARE set of Dart SS heads with “CNC-UnderCover Porting” which includes our CNC UnderCover Machining, modifications to the intake ports, exhaust ports, chamber modifications, all the cover-up work, installing and sizing new bronze valve guide liners, machining the valve seats for your size valves and providing air flow numbers for your camshaft selection. Cost is $1,395.00 to $1,595.00 plus shipping depending on the part number of the casting and final valve job size.
A COMPLETE set of “CNC-UnderCover Ported” Dart SS with the above listed “CNC-UnderCover Porting” modifications, machined for screw-in studs and guide plates, 11/32″ stainless valves, springs for a flat tapped or hydraulic cam, spring locators, steel retainers, machined valve locks, rocker studs and guide plates, surfaced with a flat cut for your compression rule and assembled ready to bolt on the motor. Price start at $2,739 plus shipping for an excellent set of compete Dart SS heads.