Engine Belt Chart

Belt Suggestion

Street and Strip (Less than 15% OD): 1/2 Pitch

Competition (Less than 35% OD): 8mm Rubber

Competition (Over 35% OD): 8mm Carbon, 13.9mm & 14mm

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, 14mm, etc...)
The total tooth count of both Upper and lower 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.

This chart will enable you to correctly determine the belt length required for a specific engine and pulley combination utilizing standard BDS blower systems. These charts may not be accurate for custom blower systems and systems not manufactured by BDS.

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
CHEVROLET 265-400 V8
17.60"	65-71 TEETH=540H300	123-133 TEETH=14408M75	62-68 TEETH=140014M75
		96-112 TEETH=13608M75
CHEVROLET 265-400 V8 W/ Intercooler
21.60"	60-64 TEETH=600H300	116-122 TEETH=16008M75	68-71 TEETH=161014M75
CHEVROLET 396-464 V8 Street Intake
19.06"	68-74 TEETH=570H300	112-117 TEETH=14408M75	75-81 TEETH=1543-75HT
			14MM SPECIAL ORDER
CHEVROLET 396-464 W/ Intercooler
23.06"	60-67 TEETH=630H300	95-106 TEETH=16008M75	13.9MM N/A
	74-80 TEETH=660H300	139-140 TEETH=17608M75	55-60 TEETH=161014M75
CHEVROLET 396-464 W/ BDS-8026T MANIFOLD
19.80"	60-67 TEETH=570H300	92-103 TEETH=14408M75	N/A
CHEVROLET 396-464 Comp Std Deck
19.70"	63-69 TEETH=570H300	97-107 TEETH=14408M75	72-78 TEETH=1543-75HT
			73-85 TEETH=161014M75
CHEVROLET 396-464 Comp Std Deck 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
CHEVROLET 396-464 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
CHEVROLET 396-464 Comp Tall Deck W/ Intercooler
24.30"	62-68 TEETH=660H300	86-89 TEETH=16008M75	59-65 TEETH=169414M75
		119-131 TEETH=17608M75	68-76 TEETH=177814M75
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 HEMI
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
FORD 351C
19.65"	64-71 TEETH=570H300	106-112 TEETH=14408M75	71-76 TEETH=1543-75HT
FORD 460 Street
21.50"	65-70 TEETH=660H300	125-133 TEETH=16008M75	Special Order
FORD #8456-8
20.65"	61-67 TEETH=585H300	86-96 TEETH=14408M75	13.9MM N/A
		129-137 TEETH=16008M75	74-78 TEETH=161014M75
FORD #8456-8 W/ Intercooler
24.65"	60-65 TEETH=660H300	116-127 TEETH=17608M75	13.9MM N/A
	76-82 TEETH=700H300		62-72 TEETH=177814M75
FORD #8456-8 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

Belt Length Chart

* Chart #'s represent the Maximum tooth count of the top and bottom sprockets.
* An allowance of 2-3 teeth less should be used to allow removal of the belt and have the slack taken up by the idler.

Belt Number and Pitch

	1400 100T 14mm	1440 180T 8mm	1543 111T 13.9mm	1568 112T 14mm	1595 145T 11mm	1600 200T 8mm	1610 115T 14mm	1694 121T 14mm	1705 155T 11mm	1750 125T 14mm	1778 127T 14mm	1792 224T 8mm	1890 135T 14mm

Inches	55.12	56.69	60.75	61.73	62.79	62.99	63.39	66.69	67.13	68.90	70.00	70.55	74.41
17.00	76	144	97	100
17.25	74	140	95	98
17.50	73	137	93	97
17.75	71	134	92	95
18.00	69	131	90	93			99
18.25	67	128	88	91			97
18.50	65	125	86	89			95
18.75	63	121	84	87			93
19.00	62	118	82	86			92
19.25	60	115	81	84			90
19.50	58	112	79	82	110		88
19.75	56	109	77	80	108	149	86	98
20.00	54	106	75	78	105	146	84	96
20.25	53	102	73	77	103	142	83	95
20.50	51	99	71	75	101	139	81	93
20.75		96	70	73	98	136	79	91		99
21.00		93	68	71	96	133	77	89		97
21.25		90	66	69	94	130	75	87		95	99
21.50		86	64	67	91	126	73	85	111	93	97
21.75			62	66	89	123	72	84	109	92	96
22.00			60	64	87	120	70	82	107	90	94	168
22.25			59	62	84	117	68	80	104	88	92	165
22.50			57	60	82	114	66	78	102	86	90	162
22.75			55	58	80	111	64	76	100	84	88	159
23.00			53	57	78	107	63	75	98	83	87	155
23.25			51	55	75	104	61	73	95	81	85	152
23.50				53	73	101	59	71	93	79	83	149	99
23.75				51	71	98	57	69	91	77	81	146	97
24.00					68	95	55	67	88	75	79	143	95
24.25					66	92	54	66	86	74	78	140	94
24.50					64	88	52	64	84	72	76	136	92
24.75					61		50	62	81	70	74	133	90
25.00					59			60	79	68	72	130	88
25.25								58	77	66	70	127	86
25.50								56	74	64	68	124	84
25.75								55	72	63	67	120	83
26.00								53	70	61	65	117	81
26.25								51	68	59	63	114	79
26.50									65	57	61	111	77
26.75									63	55	59	108	75
27.00									61	54	57	105	74
27.25									58	52	56	101	72
27.50										50	54	98	70
27.75											52	95	68
28.00											50	92	66

Click here to a downloaded .pdf file of above chart