SB-Chevy High-Flow 220 Aluminum Heads 2.10" Int/1.60" Exh Valves

Name: SB-Chevy High-Flow 220 Aluminum Heads 2.10" Int/1.60" Exh Valves
Brand: JEGS
SKU: 555-51433
Price: 753.99 USD
Availability: OutOfStock

Currently Unavailable

This product is no longer available. Please call customer service for assistance at 1-800-345-4545.

High-Flow 220 Aluminum Cylinder Heads - 220cc Intake Runners, 64cc Combustion Chambers

2.10'' Int/1.60'' Exh Valves
1.550'' Springs,
.680'' Max Lift, Mechanical Roller
Angle Plug
Assembled, Sold as Each
2 Available at This Price, Please Call Before Ordering

JEGS Cylinder Head Specifications Part # 51433 23 degree valve angle, angle plug design, SB-Chevrolet
Materials
Casting: A356-A Virgin Grade, Heat Treated to T-6
Valve Guides: Manganese Bronze
Valve Seats: Alloy, For use with Unleaded Gasoline
Combustion Chamber: 64cc CNC-Profile Machined
Intake
Port Volume: 220cc
Valve Diameter: 2.100' Stainless Steel # 555-20563
Valve Length: 4.960'
Valve Stem Diameter: 11/32'
Valve Stem Seal Diameter: .531' PTFE
Port Dimension: 1.320' x 2.190'
Flow: 310 cfm @ .700' lift 28' of water
Gasket: JEGS # 555-210000
Exhaust
Valve Diameter: 1.600' Stainless Steel, # 555-20565
Valve Length: 4.960'
Valve Stem Diameter: 11/32'
Valve Stem Seal Diameter: .531', PTFE
Port Dimension: 1.530' x 1.500'
Flow: 228cfm @ .700' lift 28' of water
Gasket: JEGS # 555-210050
Valve Train
Stud Size: 7/16', 7/16' 14 x .875'(bottom) 7/16' 20 x 1.950' (top), # 555-20526
Guide Plates: JEG?S # 555-20520 (5/16' pushrods)
Retainers: Chrome Moly Steel 10 degree, # 555-20531
Valve Locks: 10 degree
Pushrods: 5/16' Heat Treated, Must Check Length
Springs: 1.550' .680' Maximum Lift, Roller Lifter, # 555-20541
Spring Cups: .570' Inside Diameter Locater, .060' thick # 555-20550
Accessories
Head Bolts: Stock Dimensions Recommend 12-Point Head
Head Studs: Stock Dimensions Recommend 12-Point Head
Spark Plug: 14mm 3/4' reach 5/8' Hex with Washer Seat
Stud Girdle: Stud Location Custom JEG'S # 555-20505
Rocker Arms (7/16'): Required Offset .150 Intake Left, Offset .150' Intake Right;JEG'S # 555-20110: 1.5 full set; # 555-20115: 1.6 full set;# 555-20111 1.5 Intake Only Set; # 555-20116 1.6 Intake Only Set (4-.150' offset left, 4-.150' offset right)
Head Fastener Washers: Use Quality Hardened Washers
Accessory Bolt Locations: Stock Placement Torque Specifications
Rocker Studs: 45 ft/lbs.
Manifold Bolts: 35 ft/lbs.
Head Fasteners: See Manufacturers Specifications