227cc Eliminator Racing Aluminium Cylinder Heads (Angled Plug)65cc Combustion Chamber. Suit S/B ChevBrand: AFRPart Number: AFR1068Description: These reasonably priced AFR 210cc intake port small block Chevy angle plug cylinder heads are available in two stages of performance. The Race Ready version features 100% CNC ported intakes while the higher flowing Competition version features 100% CNC ported intakes with greater detail. Both come with 100% CNC ported combustion chambers and 80cc exhaust ports with a 3/4" thick head deck (ideal for nitrous or blower applications). Standard valves are lightweight 8mm 2.080 intake and 1.600 exhaust with AFR's hardened ductile iron interlocking valve seats. The exceptional flow characteristics, 23° valve angle, and standard valve spacing make this the perfect head for 350 to 400 cid engines in bracket drag cars, sportsman oval trackers, and highly modified street class cars operating between 3000 and 7500 rpm (higher rpm ranges possible depending on combination of parts).
Basic Package Components:
- 100% CNC Ported Combustion Chambers
- 100% CNC Ported Exhaust Ports
- 100% CNC Ported Intake Ports
- 3-angle Radiused Valve Job
- Bead Lock Intake Valve, 2.080" x .100" long
- Bead Lock Exhaust Valve, 1.600" x .100" long
- 1.550" OD Roller Dual Valve Spring, 225 lbs on seat, .710" maximum lift
- 10° 4140 Chrome Moly Retainers
- 10° Bead Lock Valve Keepers
- 7/16" Rocker Studs
- Guide Plates
- Viton Valve Seals
- Hardened Spring Seat
- Intake Valve Seats
- Exhaust Valve Seats
- Bronze Valve Guides
