AirFlow Research Heads for the Small Block Chevy
The Small Port, High Velocity Torque Monster
AFR 180cc SBC Smog Legal Street Cylinder Head $1450
Description
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Part Number
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| 180cc Street Heads, Vortec Plug w/heat riser, 74cc |
0912 |
| 180cc Street Heads, Factory Straight Plug w/heat riser,74cc |
0913 |
| 180cc Street Heads, Straight Plug w/heat riser, 74cc |
0911 |
| 180cc Street Heads, Straight Plug w/heat riser, 68cc |
0916 |
| 180cc Street Heads, L98 Angle Plug w/heat riser, 74cc |
0917 |
| 180cc Street Heads, L98 Angle Plug w/heat riser, 68cc |
0918
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AFR 180cc LT1 SBC Smog Legal Street Cylinder Head $1950
| 180cc LT1 Street Heads, Angle Plug, 56cc-74cc |
0908 |
The AFR Emissions Legal (versions from 1969-94 with heat riser, CARB EO #D-250-2), 180cc intake port small block Chevy cylinder heads are available in your choice of straight, or L98 angle plug versions. These heads feature a 74cc or 68cc combustion chamber with a 64cc exhaust port and a 3/4” thick head deck (ideal for nitrous or blower applications.) The 68cc chambers are designed for flat top or dished pistons; domed pistons will require additional machining. Standard valves are 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), 23º valve angle, and standard valve spacing make this the perfect street 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 72º angle. No special parts are required. Vortec style head available too
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The Ultimate Bolt-on Emissions Legal Street Weapon
AFR 195cc Smog Legal SBC Street Cylinder Head $1450
| 195cc Street Heads, Straight Plug w/heat riser, 74cc |
1036 |
| 195cc Street Heads, Straight Plug w/heat riser, 68cc |
1034 |
| 195cc Street Heads, L98 Angle Plug w/heat riser, 74cc |
1038 |
| 195cc Street Heads, L98 Angle Plug w/heat riser, 68cc |
1040 |
The AFR Emissions Legal (versions from 1969-94 with heat riser, CARB EO #D-250-2), 195cc intake port small block Chevy cylinder heads are available in your choice of straight or L98 angle plug versions. These heads feature a 74cc or 68cc combustion chamber with a 64cc exhaust port and a 3/4” thick head deck (ideal for nitrous or blower applications). The 68cc chambers are designed for flat top or dished pistons; domed pistons will require additional machining. Standard valves are 2.020 intake and 1.600 exhaust with AFR’s hardened ductile iron interlocking valve seats. The exceptional flow characteristics, ideal operating range of 2000 rpm to 6500 rpm, 23º valve angle, and standard valve spacing make this the perfect street head for 350 cid to 400 cid engines from 1955-86. Available for 1987 to present engines with center bolt valve covers and 2 center intake bolts at 72º angle. No special parts are required.
AFR 195cc Smog Legal SBC LT4 Street Cylinder Head $1950
Description
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Part Number
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| 195cc LT4 Street Heads, Angle Plug, 56cc-74cc |
1031 |
The AFR Emissions Legal (CARB EO #D-250-2 for engines up to 1994), 195cc intake port LT4 small block Chevy cylinder heads are available in an LT4 angle plug version. These heads feature a 56cc to 74cc combustion chamber with a 64cc exhaust port and a 3/4” thick head deck (ideal for nitrous or blower applications). Standard valves are 2.020 intake and 1.600 exhaust with AFR’s hardened ductile iron interlocking valve seats. The exceptional flow characteristics, ideal operating range of 2500 rpm to 6500 rpm (higher rpm ranges possible depending on combination of parts), 23º valve angle, and standard valve spacing make this the perfect street head for 350 cid to 383 cid engines. Designed specifically for 1996 Corvettes or LT4 manifold users. No special parts are required.
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NEW AFR 203cc SBC Racing Cylinder Head $1425
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NEW 203cc Racing Head, Angle Plug, Standard Exhaust
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1051 |
Good Choice for a little more power from a street 383
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AFR 210cc SBC Racing Cylinder Head $
Description
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Part Number
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| 210cc Racing Head, Angle Plug, Standard Exhaust |
1050 |
| 210cc Racing Head, Angle Plug, Spread Port Exhaust |
1055 |
| 210cc Racing Head, L-98 Plug, Standard Exhaust |
1058 |
| 210cc Racing Head, Angle Plug, Standard Exhaust |
1054 |
| 210cc Racing Head, Straight Plug, Standard Exhaust |
1052 |
AFR 210cc LT4 SBC Racing Cylinder Head $
Description
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Part Number
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| 210cc Racing Head, LT4, Standard/Reverse Cooled |
1057 |
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These reasonably priced AFR 210cc intake port small block Chevy angle plug cylinder heads are available in three stages of performance. The Race Ready version features 70% CNC ported intakes while the higher flowing Competition version features 100% CNC ported intakes. Both come with 100% CNC ported 76cc combustion chambers and 80cc exhaust ports with a 3/4” thick head deck (ideal for nitrous or blower applications). In addition we also offer the “as cast” Stage 1 heads for 210cc performance on a budget. Standard valves are 2.080 intake and 1.600 exhaust with AFR’s hardened ductile iron interlocking valve seats. The exceptional flow characteristics, 23º 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).The 210cc heads are available in either standard or spread port exhaust. Straight plug versions and down nozzle provisions are special order only. No special parts are required.
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The Baddest 23°Standard Port Head
AFR 227cc SBC Racing Cylinder Head $
Description
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Part Number
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| 227cc Racing Head, Angle Plug, Standard Exhaust |
1067 |
| 227cc Racing Head, Angle Plug, Spread Port Exhaust |
1075 |
| 227cc Racing Head, Angle Plug, Standard Exhaust |
1068 |
AFR 227cc LT4 SBC Racing Cylinder Head $
Description
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Part Number
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| 227cc Racing Head, LT4, Standard/Reverse Cooled |
1076 |
High flowing AFR 227cc intake port small block Chevy angle plug cylinder heads are available in three stages of performance. The Race Ready version features 70% CNC ported intakes while the higher flowing Competition version features 100% CNC ported intakes. Both come with 100% CNC ported 76cc combustion chambers and 80cc exhaust ports with a 3/4” thick head deck (ideal for nitrous or blower applications). In addition we also offer the “as cast” Stage 1 heads for 227cc performance on a budget. Standard valves are 2.100 intake and 1.600 exhaust with AFR’s hardened ductile iron interlocking valve seats. The 227 has 60/40 valve spacing and piston valve pockets should be checked. The exceptional flow characteristics and 23º valve angle make this the perfect head for 350 to 434 cid engines in drag cars, sprint cars, and late model oval trackers operating from 4500 rpm and up. The 227cc heads are available in either standard or spread port exhaust.
Rockers or Rockershaft Required 60/40 jg 555-115
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The Best 23° Cylinder Head You Can Buy
AFR 215cc SBC Raised Runner Head $
Description
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Part Number
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| 215cc Raised Runner, Angle Plug, Standard Exhaust - No Parts |
1206 |
| 215cc Raised Runner, Angle Plug, Spread Port Exhaust - No Parts |
1207
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AFR 227cc LT4 SBC Raised Runner Head $
Description
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Part Number
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| 215cc Raised Runner LT-4, Angle Plug, Standard Exhaust - no parts |
1212 |
If you must run 23º heads, you just can’t find a better one anywhere! The unique AFR 215cc Raised Runner small block Chevy cylinder heads feature a raised intake port to straighten the runner for superior high flow. These angle plug heads are available in two stages of performance. With 100% CNC ported intake runners, 76cc combustion chambers and 80cc exhaust ports with a 3/4” thick head deck (ideal for nitrous or blower applications). We also offer the “as cast” Stage 1 heads for Raised Runner performance on a budget. Standard valves are 2.100 intake and 1.600 exhaust with AFR’s hardened ductile iron interlocking valve seats. The incredible flow characteristics, 23º valve angle, and raised runners make this the perfect head for 350 to 434 cid engines in drag cars, sprint cars, and late model oval trackers operating from 4500 rpm on up. Raised Runner heads are available in either standard or spread port exhaust. Shaft mount rockers with a 0.450” offset on the intake are required with a .150” to .180” offset lifter. The distance from floor to the head deck at the gasket is 0.700”.
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Details 11 Degree Heads
Little Chief Article
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