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EngineQuest Performance Chev SB Vortec Cast Iron Heads
Vortec Chamber with Heat Riser
Developed using racing technology, with a superior port finish for increased flow. Outflows the popular GM 906 casting. Manufactured using the highest grade cast iron. Improved design to reduce cracking. Thicker decks for greater strength. Redesigned water flow for greater thermal conductivity. Tall machined valve cover rails (eliminates leaks). Includes hardened exhaust seats, 3 angle valve job and a 25 point quality check on every head.
- Cast from the highest grade cast iron
- Improved design to resist cracking
- Redesigned water flow for greater thermal conductivity
- Hardened exhaust seats
- 25 point quality check
Stage 1 Assemblies include: LT1 springs, steel retainers, heat-treated locks, seals, 1.940"/1.500" stainless steel valves, 3/8" studs, assembled, ready to bolt on.
Part Type: Cylinder Head
Application: Chevrolet Small Block, Vortec Intake Manifold Bolt Pattern
Cylinder Head Material: Cast Iron
Bare or Assembled: Assembled
Combustion Chamber Size: 64cc
CNC Machined Combustion Chambers: No
Intake Valve Angle: 23
Exhaust Valve Angle: 23
Intake Port Volume: 170cc
CNC Machined Intake Port: No
Intake Port Flow: cfm @ Lift / 28"
Intake Port Location: Standard
Intake Port Shape: Standard
Intake Port Dimensions:
Suggested Intake Gaskets:
Exhaust Port Volume:
CNC Machined Exhaust Port: No
Exhaust Port Flow: cfm @ . Lift/ 28"
Exhaust Port Location: Standard
Exhaust Port Shape: Standard
Exhaust Port Dimensions:
Suggested Exhaust Gaskets:
Spark Plug Style: Straight
Suggested Spark Plug:
Valve Guides: Yes
Valve Guide Spacing:
Valve Stem Diameter: 11/32" (.3415")
Valve Seats: Yes
Valve Job: 3-Angle
Intake Valve Diameter: 1.940"
Intake Valve Included: Yes
Exhaust Valve Diameter: 1.500"
Exhaust Valve Included: Yes
Suggested Valve Length:
Valve Spring Pockets:
Valve Springs Included: Yes, 1.250" Single with Damper
Valve Spring Application: 120lbs. Seat, .510" Lift
Valve Springs Retainers Included: Yes
Valve Locks Included: Yes (7 Degree)
Valve Seals Included: Yes
Rocker Studs Included: Yes (3/8")
Guide Plates Included: No
Valve Cover Mounting Style: Center Bolt
Steam Holes Drilled: No
Heat Crossover: No
Suggested Head Gaskets: FEL1043
Suggested Head Bolts:
Suggested Head Studs:
Suggested Stud Girdle:
Head Bolt Torque with Oil:
Rocker Stud Torque with Oil:
Intake Bolt Torque with Oil:
Manufacturer: EngineQuest
Manufacturer's Part Number: CH350C Assembled
Weight:
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold as Each
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