I have heard the stock head was not worth the money,after there were ported they were supposed to be pretty good.
Here is some data..........
Chrysler COPYRIGHT © 2000-2018 Stan Weiss — World Wide Enterprises
Manufacturer
Part Number Port/Vol
Int/Exh Valve Size Int/Exh Comb. Chamber Vol .100 .200 .300 .400 .500 .600 .700 .800 .900 Average
Chrysler 2.2 445 N/A Stock N/A 53/39 103/75 140/97 156/113 165/123 - - - - -
Chrysler '93-94 782 N/A Stock N/A 42/39 81/76 109/93 130/106 143/112 - - - - -
Chrysler Swirl N/A 1.60/1.39 N/A - 98/78 125/103 145/122 157/128 - - - - -
Chrysler Swirl Ported N/A 1.60/1.39 N/A - - - 157/121 177/132 - - - - -
Chrysler Swirl Ported N/A - N/A - 100/91 137/111 165/129 185/143 - - - - -
Chrysler "G" N/A 1.60/1.39 N/A 49/38 98/79 131/106 152/119 163/124 - - - - -
Chrysler "G" Ported Welded N/A - N/A 55/53 108/97 153/129 177/160 195/175 210/184 - - - -
Chrysler Slant 6 -/71 - N/A -/42 -/74 -/98 -/116 -/121 -/124 - - - -
Chrysler Slant 6 Ported Pacer -/79 1.72/1.50 N/A 58/55 111/95 156/124 184/141 195/147 -/154 - - - -
Chrysler Slant 6 Ported N/A 1.88/1.50 N/A 58/46 121/102 146/124 185/139 195/161 203/163 - - - -
CHI HEMI 6 Alum N/A 2.02/1.60 N/A 63/56 135/112 190/134 231/172 266/194 276/205 - - - -
Chrysler 318 Poly Gary Pavlovich N/A Stock N/A 50/45 116/83 149/106 171/126 183/150 - - - - -
Manufacturer
Part Number Port/Vol
Int/Exh Valve Size Int/Exh Comb. Chamber Vol .100 .200 .300 .400 .500 .600 .700 .800 .900 Average
Chrysler 318 Poly Ported Gary Pavlovich N/A - N/A 69/48 145/88 188/113 202/134 211/159 218/164 - - - -
Chrysler Poly Pocket Ported N/A 1.845/1.565 N/A - - - - 228/160 - - - - -
Chrysler 3.5l v6 Frank Racing N/A 36.5mm/ 29mm N/A 91/53 164/125 213/163 227/168 234/174 - - - - -
Chrysler 3.5l v6 Ported Stage 1 Frank Racing N/A 36.5mm/ 29mm N/A 94/75 184/144 252/178 290/180 295/184
