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Size comparison table：
40 0.040" / 1.02 mm
41 0.041" / 1.04 mm
42 0.042" / 1.06 mm
43 0.043" / 1.09 mm
44 0.044" / 1.12 mm
45 0.045" / 1.14 mm
46 0.0465" / 1.18 mm
47 0.047" / 1.19mm
48 0.048" / 1.22 mm
49 0.049" / 1.24mm
50 0.0496" / 1.26mm
51 0.050" / 1.27 mm
52 0.051" / 1.30mm
53 0.052" / 1.32 mm
54 0.053" / 1.34 mm
55 0.054" / 1.37 mm
56 0.055" / 1.397mm
57 0.056" / 1.42mm
58 0.057" / 1.45mm
59 0.058" / 1.47 mm
60 0.059" / 1.50mm
61 0.060" / 1.52mm
62 0.061" / 1.55 mm
63 0.062" / 1.57 mm
64 0.064" / 1.63mm
65 0.065" / 1.65mm
66 0.066" / 1.67 mm
67 0.068" / 1.73mm
68 0.069" / 1.75mm
69 0.070" / 1.78 mm
70 0.073" / 1.85 mm
71 0.076" / 1.93 mm
72 0.077" / 1.95 mm
73 0.079" / 2.00 mm
74 0.081" / 2.06 mm
75 0.082" / 2.08 mm
76 0.084" / 2.13 mm
77 0.086" / 2.18 mm
78 0.087" / 2.20 mm
79 0.089" / 2.5mm
80 0.090" / 2.30 mm
81 0.092" / 2.33mm
82 0.094" / 2.39 mm
83 0.0975" / 2.48 mm
84 0.099"/2.51 mm
85 0.100" / 2.54 mm
86 0.101" / 2.57mm
87 0.103" / 2.62 mm
88 0.104" / 2.64 mm
89 0.1045" / 2.65 mm
90 0.1055" / 2.68mm
91 0.1085" / 2.76 mm
92 0.110" / 2.79 mm
93 0.112" / 2.84 mm
94 0.1155" / 2.93 mm
95 0.1165" /2.95mm
96 0.1195" /3.04 mm
97 0.121" / 3.07 mm
98 0.124" / 3.15 mm
99 0.125" / 3.18 mm
100 0.126" / 3.20 mm
101 0.127" / 3.22mm
102 0.128" / 3.25 mm
103 0.130" / 3.30 mm
104 0.134" / 3.40 mm
105 0.137" / 3.48 mm
106 0.141" / 3.58 mm
107 0.145" / 3.68 mm
108 0.147" / 3.73 mm
109 0.150" / 3.81 mm
110 0.156" / 3.96 mm
maxgforce
2025-04-11 13:09:47
Original Holley jets are stamped with the size and most of the time hard to read. These have the size Lazer etched into them, still need a light to see numbers but very easy to read.
Ken Meyers
2025-02-04 11:00:07
These jets do screw into holley metering blocks but the jet numbers do not correlate to holley numbers.
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