Belt sizing help please

[1968Droptop]

I currently have belt size 1600-8GMT (Gates). I'm adding an intercooler, which is 4" thick. So I need a belt that's 8" longer (right ?). What size will that be ? I looked on BDS's site, but they only list belt sizes for small block Fords

[Placecraft Dragstar]

Hope this helps
To find the proper belt for your application, you must know the following:
The make and model of the engine
The style of pulleys (1/2 pitch, 8mm etc.)
The total tooth count of both pulleys
The center to center distance between the upper and lower blower pulley
If you do not have a complete standard BDS blower system, you will need to measure the center to center distance from the drive snout on the blower to the crankshaft of the engine. Look at the Belt Chart to find a measurement that comes closest to your measurement. If you cannot decide which belt will work for your application, we suggest calling our tech Department.
Locate your engine and belt style in the chart below. The chart will find a total teeth range for a specific belt length.
ENGINE
CENTER TO CENTER
1/2 PITCH
8mm
13.9/14mm
AMC (all)
19.00"
61-68 TEETH=555H300
112-117 TEETH=14408M75
Special Order
BUICK V6
19.00"
61-68 TEETH=555H300
112-117 TEETH=14408M75
Special Order
BUICK V8
19.50"
60-67 TEETH=570H300
103-110 TEETH=14408M75
Special Order
CHEVROLET
229-292 V6
17.60"
65-71 TEETH=540H300
86-90 TEETH=12808M75
62-68 TEETH=140014M75
265-400 V8
17.60"
65-71 TEETH=540H300
123-133 TEETH=14408M75
62-68 TEETH=140014M75
96-112 TEETH=13608M75
W/Intercooler
21.60"
60-64 TEETH=600H300
116-122 TEETH=16008M75
68-71 TEETH=161014M75
396-464 V8
Street Intake
19.06"
68-74 TEETH=570H300
112-117 TEETH=14408M75
75-81 TEETH=1543-75HT
14MM SPECIAL ORDER
W/Tall Back Spcrs
23.06"
64-69 TEETH=570H300
97-109 TEETH=14408M75
71-77 TEETH=1543-75HT
W/intercooler
60-67 TEETH=630H300
95-106 TEETH=16008M75
13.9MM N/A
74-80 TEETH=660H300
139-140 TEETH=17608M75
55-60 TEETH=161014M75
Comp Std Deck
19.70"
63-69 TEETH=570H300
97-107 TEETH=14408M75
72-78 TEETH=1543-75HT
73-85 TEETH=161014M75
W/intercooler
23.70"
69-75 TEETH=660H300
88-97 TEETH=14408M75
51-54 TEETH=161014M75
128-138 TEETH=17608M75
63-67 TEETH=1543-75HT
Comp Tall Deck
20.30"
64-69 TEETH=585H300
91-100 TEETH=14408M75
63-75 TEETH=1543-75HT
132-140 TEETH=16008M75
68-76 TEETH=161014M75
W/intercooler
24.30"
62-68 TEETH=660H300
86-89 TEETH=16008M75
59-65 TEETH=169414M75
119-131 TEETH=17608M75
68-76 TEETH=177814M75
CHRYSLER
318,360,392 HEMI
19.50"
66-72 TEETH=570H300
102-110 TEETH=14408M75
65-74 TEETH=1543-75HT
426 HEMI
18.89"
70-76 TEETH=570H300
112-119 TEETH=14408M75
73-80 TEETH=1543-75HT
440
18.25"
61-68 TEETH=570H300
121-127 TEETH=14408M75
77-84 TEETH=1543-75HT
FORD
289,302,351W
20.25"
66-73 TEETH=585H300
92-103 TEETH=14408M75
63-73 TEETH=1543-75HT
351C
19.65"
64-71 TEETH=570H300
106-112 TEETH=14408M75
71-76 TEETH=1543-75HT
460 Street
21.50"
65-70 TEETH=660H300
125-133 TEETH=16008M75
Special Order
#8456-8
20.65"
61-67 TEETH=585H300
86-96 TEETH=14408M75
13.9MM N/A
129-137 TEETH=16008M75
74-78 TEETH=161014M75
W/Intercooler
24.65"
60-65 TEETH=660H300
116-127 TEETH=17608M75
13.9MM N/A
76-82 TEETH=700H300
62-72 TEETH=177814M75
Comp
25.50"
65-70 TEETH=660H300
114-125 TEETH=17608M75
Special Order
OLDSMOBLIE
350-455
19.75"
61-68 TEETH=570H300
100-107 TEETH=14408M75
Special Order
PONTIAC
350-455
17.17"
60-64 TEETH=510H300
93-100 TEETH=12808M75
Not Available
72-78 TEETH=540H300
134-140 TEETH=14408M75

[HEAVYBOAT]

I currently have belt size 1600-8GMT (Gates). I'm adding an intercooler, which is 4" thick. So I need a belt that's 8" longer (right ?). What size will that be ? I looked on BDS's site, but they only list belt sizes for small block Fords
17608M75
Ive got one if your interested. Shoot me a PM
Rick

[1968Droptop]

17608M75
Ive got one if your interested. Shoot me a PM
Rick
PM sent, and disregard my other post