Chevy Aftermarket Cylinder Head Comparison

Cylinder Head Comparison

Flow numbers & sizes in RED represent actual data. Other info is advertised data.

Aftermarket Cylinder Heads
               
  Flow (cfm) Size (cc)      
  Intake Exhaust Int. Port Chamber Valves Cost Comments
Air Flow Research:              
190 (AL) (@.600 lift) 261 197 191 76 2.020/1.600    
Street CNC (AL) 268 194 195 68 2.020/1.600 $1,200 Complete, $899 bare w/valve job
210 (AL) (@.700 lift) 284 218 215 67 2.080/1.600    
Race Ready CNC (AL) 294 222 220 76 2.080/1.600 $1,425 525hp w/260,.650,106 & Vic Jr.
Competition CNC (AL) (@.700) 306 230 220 76 2.080/1.600 $1,899 580hp w/260,.650,106 & Vic Jr.
Competition CNC (AL) 312 230 227 76 2.080/1.600 $1,899  
Max Perf. High Port (AL) 325 245 235 76 2.100/1.600 $2,900  
Bowtie 18 deg. ported (AL) 345 250     2.150/1.600 $3,700 Seats & guides
               
Avenger:              
Std (AL) 296 215 220        
Ported (AL) 325 225 220        
               
Brodix:              
-8 Pro (AL) (@.500 lift) 254 155 181 67 2.080/1.600    
Track 1 (AL) (@.600 lift) 267 186 216 67 2.080/1.600 $1,330  
Track 1 310     69 2.080/1.600 $2,169 fully ported by BHPerformance
Track 1 - CNC (AL) 305 231 215 68 2.080/1.600 $2,600 No exhaust seals, mill to 60cc
11x 280 220 225 69 2.125/1.600 $1,385 Bare, 320/245 fully ported ($1300)
               
Canfield:              
(AL) (@.600 lift) 257 183 195 67 2.100/1.600 $1,200 $660 bare
               
Dart:              
Buick (AL)     235 45 2.250/1.700 $1,595 Bare, mill to 30cc
Conquest (AL) (@.600 lift) 274 173 220 62 2.055/1.600    
Eagle (FE) (@.600 lift) 255 173 220 72 2.055/1.600    
               
Edelbrock:              
Performer (AL) (@.600 lift) 236 187 166 70 2.020/1.600    
Performer RPM (AL) 222 169   64/70 2.020/1.600 $932  
Victor Jr. (AL) (@.600 lift) 284 203 215 68 2.080/1.600 $1,300 Bare, raised exhaust ($1626 cmpl)
               
GM:              
Bowtie18 degree (AL)         2.150/1.620 $1,259 Bare (Scoggin-Dickey)
Bowtie18 degree (AL)     258 65 2.150/1.620 $4,000 Seats & guides
Bowtie15 degree (AL)              
441 (FE) (@.600 lift) 203 139 155 76 1.940/1.500    
462 (FE) (@.600 lift) 218 137 156 62 1.940/1.500    
882 (FE) (@.600 lift) 206 142 151 76 1.940/1.500    
L98 (AL) (@.600 lift) 199 159 163 58 1.940/1.500    
LS1 (AL) (@.600 lift) 252 182 204 65 2.000/1.550    
LT1 372 (AL) (@..600 lift) 215 154 170 58 1.940/1.500    
LT4 (AL) (@.500 lift) 250 172 195 56 2.000/1.550    
SB2 (AL)     196 26 2.150/1.625 $2,195 Bare (Scoggin-Dickey)
SB2 - CNC (AL) 349 257 280 38 2.150/1.625 $5,000 Seats & guides
Vortec 855 (FE) (@.500 lift) 239 147 170 64 1.940/1.500    
               
Holley:              
SysteMAX (AL) (@.600 lift) 252 181 186 68 2.020/1.600    
               
Trick Flow:              
Std. (AL) (@.600 lift) 265 211 200 64 2.020/1.600 $900  
               
World Products:              
Dart II Summit (FE) (@.600 lift) 248 179 200 69 2.055/1.600 $1,229 mill to 55cc
S/R Torquer (@.600 lift) 225 155 170 67 2.020/1.600    
Sportsman II (FE) (@.600 lift) 243 156 200 64 2.020/1.600    
               


Last updated: 5/21/1999
Author: Roger H. Copeland

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