EngineQuest Cylinder Head SBC (IMCA Spec/UMP Legal)
ENQCH350I (Not in stock)EngineQuest
Regular price
$456.99
Sale
Engine Quest Vortec Bolt-On Performance for 350 CID 23°Cylinder Heads - SB Chevy IMCA-Legal Cast Iron Cylinder Head
The sole legal spec head option for small block Chevy-powered IMCA Sport Mods and Hobby Stocks. Cast iron cylinder head is a direct replacement for OEM Chevy 350 heads and includes 176cc intake ports, 76cc combustion chambers, 1.94" intake and 1.50" exhaust valves. Heads feature a superior port finish for increased air flow, redesigned water passages for improved cooling, thicker decks, and a three-angle valve job. Head is serial numbered and includes the IMCA logo. Sold individually as bare castings.
All EQ performance cylinder heads have AS-CAST combustion chambers, Dura-Bond exhaust seats, 3-angle valve job, thick deck surfaces for angle milling, phosphorus-bronze intake and exhaust guides, are machined for guide plate use, and feature raised intake runner ports for increased performance.
- IMCA Sanctioned Sport Mod Head
- SBC Cast Iron Head
- 178cc S/P 76cc
- Cylinder Head - Bare Head
- 1.940 / 1.500 in Valves
- 178 cc Intake
- 76 cc Chamber
- Straight Plug
- Iron
- Small Block Chevy
- Sold as Each
- MPN: EQ-CH350I
Specifications
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Product Line
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IMCA Sport Mod
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Brand
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Engine Quest
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Part Number
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EQ-CH350I / EQCH350I
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Assembled/Bare
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Bare
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Chamber Volume
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76 cc
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Plug Angle
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Straight
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Intake Runner Volume
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176 cc
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Exhaust Runner Volume
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67 cc
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Intake Port Shape
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Rectangle
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Intake Port Location
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Stock
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Intake Port Height
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2.025 in
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Intake Port Width
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1.200 in
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Exhaust Port Shape
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Square
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Exhaust Port Location
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Stock
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Exhaust Port Height
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1.350 in
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Exhaust Port Width
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1.400 in
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Exhaust Port Bolt Pattern
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Stock
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Intake Valve Size
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1.940 in
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Intake Valve Included
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No
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Exhaust Valve Size
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1.500 in
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Exhaust Valve Included
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No
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Valve Spring Included
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No
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Valve Seal Included
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No
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Rocker Studs Included
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No
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Pushrod Guide Plate Included
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No
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Valve Guide Included
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Yes
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Valve Guide Material
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Cast
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Center Mount Valve Cover
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Yes
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Valve Seat Included
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Yes
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Intake Valve Seat Material
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Ductile Iron
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Exhaust Valve Seat Material
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Ductile Iron
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Valve Seat Finish
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Machined
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Combustion Chamber Finish
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As Cast
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Intake Runner Finish
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As Cast
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Exhaust Runner Finish
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As Cast
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Intake Valve Angle
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23 Degree
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Exhaust Valve Angle
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23 Degree
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Accessory Bolt Holes
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Drilled and Tapped
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Material
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Cast Iron
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Color
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Natural
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Finish
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Natural
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Quantity
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Each
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