AFR 180cc SBC Eliminator Street Cylinder Head

The Small Port, High Velocity Torque Monster

The Emissions Legal (versions from 1969-94 with heat riser, CARB EO #D-250-2), 180cc intake port small block Chevy eliminator cylinder heads are available in your choice of straight or L98 angle plug versions. These performance heads feature a 75cc or 65cc combustion chamber with a 64cc exhaust port and a 3/4” thick head deck (ideal for nitrous or blower applications.) Standard valves are lightweight 8mm 2.020 intake and 1.600 exhaust with AFR’s hardened ductile iron interlocking valve seats. The exceptional flow characteristics, ideal operating range of idle to 5500 rpm (higher rpm ranges possible depending on combination of parts), 23° valve angle, and standard valve spacing make this the perfect street aluminum cylinder head for 327 cid to 350 cid engines from 1955-86. Also available for 1987 to present engines with center bolt valve covers and 2 center intake bolts at 72° angle, AFR Part #0919. No special parts are required (see footnotes here). Dual valve cover bolt pattern is standard. Exhaust port and bolt pattern are raised 3/32" over GM L98 cylinder heads, this rarely affects header or chassis fitment.

Note:

Hydraulic roller cams typically experience valve float at 6200-6400 rpm because of their fast ramp rates. AFR suggest you upgrade your springs to AFR part #8605, 1.270 O.D. with higher spring pressures and use our Patented “Hydra Rev Kit” to reduce chances of valve float associated with rpm 6200 or higher.

180cc SBC Street Aluminum Cylinder Head Flow Chart

Tested on 4.060 Bore

AFR 180cc SBC Cylinder Head Flow Chart
Basic Package Components
100% CNC Ported Combustion Chambers
100% CNC Ported Exhaust Ports
100% CNC Ported Intake Ports
Competition 5-Angle Valve Job
AFR #7251 Bead Lock Intake Valve, 2.020" x 4.903" Overall Valve Length
AFR #7250 Bead Lock Exhaust Valve, 1.600" x 4.955" Overall Valve Length
AFR #8017 PAC Racing Spring 1.290" OD Hydraulic Dual Valve Spring,
135 lbs on seat, .600" maximum lift, Max .050 duration 235°
AFR #8514 Manley 7° Chrome Moly Retainers
AFR #9007 7° Bead Lock Valve Keepers
AFR #6410 3/8" Rocker Studs
AFR #6103 Adjustable Guide Plates
AFR #6612 Viton Valve Seals
AFR #8042 Hardened Spring Cup
AFR #9060 Intake Valve Seats
AFR #9070 Exhaust Valve Seats
AFR #9051 Bronze Valve Guides



Specifications, Features, and Optional Supporting Components
65-70 ft. lbs Head Torque w/ Moly Lube
55 ft. lbs Rocker Stud Torque
AFR #6817 Intake Port Gasket, 1.230" X 1.990" w/ 3/8" radius, Fel-Pro #1256
Important: Do not port match your intake manifold to Fel-Pro gasket as it does not precisely fit AFR heads.
AFR #6834 Exhaust Port Gasket, Fel-Pro #1404
AFR #6800 Head Gasket, 350cid Fel-Pro #1003
AFR #6802 Head Gasket, 400cid Fel-Pro #1014
AFR #6310 SB Chevy Head Bolt Kit, ARP #134-3701
AFR #6305 SB Chevy Head Stud Kit, 12 Point Nuts, ARP #234-4301
AFR #6320 Head Bolt Washers, Manley
AFR #6200 Stud Girdle GM L98
Edelbrock #3701 Suggested Manifold
AC FR3LS or 41629 Spark Plug Starting Range
65cc or 75cc Combustion Chambers
Can be cut to 1.625, no deeper Spring Pocket
Standard GM L98 Valve Spacing
Standard, GM L98 Rocker Arms
23° Valve Angle
.008" per cc Angle Mill (Milling options available)
.006" per cc Flat Mill (Milling options available)

Note: Angle mills might require .120 thick intake gasket.

 Model      Product Name   Price   Buy Now 
 0911*   SBC 180cc Street Heads, straight plug w/heat riser, 75cc, complete w/parts   SBC 180cc Street Heads, straight plug w/heat riser, 75cc, complete w/parts    $1,564.00  Buy Now 
 0916*   SBC 180cc Street Heads, straight plug w/heat riser, 65cc, complete w/parts   SBC 180cc Street Heads, straight plug w/heat riser, 65cc, complete w/parts   $1,564.00  Buy Now 
 0917*   SBC 180cc Street Heads, L98 angle plug w/heat riser, 75cc chambers, complete w/parts   SBC 180cc Street Heads, L98 angle plug w/heat riser, 75cc chambers, complete w/parts   $1,564.00  Buy Now 
 0918*   SBC 180cc Street Heads, L98 angle plug w/heat riser, 65cc chambers, complete w/parts   SBC 180cc Street Heads, L98 angle plug w/heat riser, 65cc chambers, complete w/parts   $1,564.00  Buy Now 
 919   AFR SBC 180cc Street Heads W/72° Angle Intake Bolts, L98 angle plug w/heat riser, 65cc chambers, complete w/parts   AFR SBC 180cc Street Heads W/72° Angle Intake Bolts, L98 angle plug w/heat riser, 65cc chambers, complete w/parts   $1,564.00  Buy Now 
Displaying 1 to 5 (of 5 products) Result Pages:  1 
Air Flow Research | 28611 W. Industry Drive | Valencia, CA 91355 | 661-257-8124

Follow AFR_Heads on Twitter  Car people connect at hubgarage.com    Follow AFR_Heads on Youtube

Copyright © 2013 Air Flow Research
Powered by osCommerce
Online Payments

SSL Certificates