Cylinder Head Valve Sizes


EXHAUST
Size mm Size Inch Part Number Collet Type cc Notes Spring Useage
25.4mm 1” AEA434 2A11 - N.L.A Small Bore   Original Fitment
25.4mm 1” 12A1987 88G459 (Pair) Small Bore .220 Groove AEA311 Original Fitment
25.4mm 1” TAM1770 CAM6975 (Single) Small Bore   Original Fitment
25.4mm 1” CAM6505 88G459 (Pair) Small Bore Lead free 12G1015 Original Fitment
25.4mm 1” AEA400 2A11 - N.L.A Small Bore 295 Casting Original Fitment
25.4mm 1” CAM6503 88G459 (Pair) Small Bore S/s to cam6505 12G1015 Original Fitment
26.5mm 1.043” C-AEG587 CAM6573 - N.L.A Small Bore   Race modified head
27mm 1.06” C-RIM105 88G459 (Pair) Small Bore Rimflo   Race modified head
29mm 1.14” AHU1976 CAM6573 - N.L.A Large Bore Turbo - fatter Original Fitment
29.2mm 1.149” TAM1061 CAM6975 (Single) Large Bore Lead free   Original Fitment
29.3mm 1.15” C-RIM106 88G459 (Pair) Large Bore Rimflo   Race modified head
29.4mm 1.15” AHU1049 88G459 (Pair) Large Bore   Original Fitment
29.5mm 1.161” C-AEG106 88G459 (Pair) Large Bore   Race modified head
29.5mm 1.161” C-AEG105 CAM6975 (Single) Large Bore   Race modified head
30.5mm 1.203” C-AHT372 88G459 (Pair) Large Bore 8 Port 2012 C-AJJ4064RACE
30.9mm 1.217” C-RIM107 88G459 (Pair) Large Bore Rimflo   Race modified head
30.93mm 1.218” C-AHT377 88G459 (Pair) Large Bore 8 Port original C-AJJ4064
31mm 1.22” C-AEG107 88G459 (Pair) Large Bore   Race modified head
31mm 1.22” AEG594 88G459 (Pair) Large Bore AEG163 90mm Original Fitment
31.75mm 1.25” C-RIM570 88G459 (Pair) Large Bore Rimflo   Race modified head
32mm 1.26” C-AEG570 88G459 (Pair) Large Bore   Race modified head
INLET
Size mm Size Inch Part Number Collet Type cc Notes Spring Useage
25.4mm 1” CAM6502 CAM6975 (Single) Small Bore .140 Groove 12G1015 Original Fitment
27mm 1.06” CAM6391 88G459 (Pair) Small Bore .220 Groove AEA311 Original Fitment
27.8mm 1.09” TAM1062 CAM6975 (Single) Small Bore   Original Fitment
27.9mm 1.1” 2A877 2A11 - N.L.A Small Bore   Original Fitment
29mm 1.15” AEA574 2A11 - N.L.A Small Bore   Original Fitment
29.2mm 1.15” 12G3036 88G459 (Pair) Small Bore AEA311 Original Fitment
30.93mm 1.218” C-AEG588 CAM6975 (Single) Small Bore   Race modified head
31mm 1.22” 12G296 2A11 - N.L.A Small Bore 295 Casting Original Fitment
31mm 1.22” 12G3034 88G459 (Pair) Small Bore   Original Fitment
31.8mm 1.252” C-RIM104 88G459 (Pair) Small Bore Rimflo   Race modified head
33mm 1.311” 12G941 88G459 (Pair) Large Bore   Original Fitment
33mm 1.311” TAM1058 CAM6975 (Single) Large Bore Lead free   Original Fitment
33.3mm 1.311” C-AEG569 88G459 (Pair) Large Bore   Race modified head
35.6mm 1.405” C-AHT376 88G459 (Pair) Large Bore 8 Port original C-AJJ4064
35.6mm 1.405” AEG592 88G459 (Pair) Large Bore   Original Fitment
35.6mm 1.484” TAM1059 CAM6975 (Single) Large Bore Mg metro   Original Fitment
35.7mm 1.406” C-AEG544 88G459 (Pair) Large Bore   Race modified head
35.7mm 1.406” C-AEG543 CAM6975 (Single) Large Bore   Race modified head
35.7mm 1.406” AEG593 88G459 (Pair) Large Bore AEG163   90mm Original Fitment
35.7mm 1.405” C-RIM544 88G459 (Pair) Large Bore Rimflo   Race modified head
35.6mm 1.402” C-AHT371 88G459 (Pair) Large Bore 8 Port 2012 C-AJJ4064
36.6mm 1.44” C-RIM55 88G459 (Pair) Large Bore Rimflo   Race modified head
37mm 1.453” C-AHT370 88G459 (Pair) Large Bore 8 Port 2012 C-AJJ4064RACE
37.2mm 1.464” C-AHT55 88G459 (Pair) Large Bore   Race modified head