Description

The Edelbrock #60985 E-Tec Cylinder Heads are replacements for 302327350 400 SB Chevy engines with Vortec-style manifolds. They feature an LT1-style raised runner intake port design for increased air-flow and ultimate performance.The Edelbrock #60985 E-Tec cylinder head is replacements for 302327350 400 c.i.d. S/B Chevy engines with ”Vortec-style” manifolds. They feature an LT1-style raised runner intake port design for increased air-flow and ultimate performance. A unique combustion chamber design positions the spark plug closer to the center of the cylinderpromoting a more efficient combustion resulting in more power. This head includes an adjustable rocker stud and guide plate set-up for use with adjustable rockers or washers to properly position the stud height to accommodate factory style self-aligning rocker arms. They have 20% more exhaust flow than a cast iron Vortec headgreat performance up to 6000 rpm and can produce 9.5:1 compression with stock pistons in 350 cubic-inch engines. RPM E-Tec cylinder head is dual-drilled and will accept 1987-95 center bolt and/or 1986 prior perimeter flange mount valve covers and most stock exhaust manifolds.

Camshaft Type: Hydraulic Roller

CNC Ported: No

Combustion Chamber Volume: 64 CCM

Construction Type: Complete

Deck Thickness: 0.625″

EGR Port: No

Exhaust Port Location: Standard

Exhaust Runner Volume: 80 CCM

Exhaust Valve Diameter: 1.60″

Family: E-Tec

Grade Type: Performance

Guide Material: Manganese Bronze

Guide Plate Material: Hardened Steel

Guide Plates Included: Yes

Head Casting Number: N/A

Horsepower: 350-500 HJ

Intake Runner Volume: 200 CCM

Intake Valve Diameter: 2.02″

Material: Aluminum

Push Rod Diameter: (Suggested) 0.625 Inch

Quantity: Sold Individually

Retainer Included: Yes

Rocker Arm Stud Diameter: 0.375 Inch

Rotor Center Bore Inside Diameter: Straight

Seat Angle: Exhaust 45 deg/Intake 45 DD

Seat Material: Ductile Iron

Series: E-Tec

Valve Angle: 23 DD

Valve Included: Yes

Valve Spring Diameter: 1.46 Inch

Valve Spring Maximum Lift: 0.575 Inch

Valve Springs Included: Yes

Valve Stem Diameter: 0.3438 Inch