Page 5 of Cooling 2008 by Parts Pro

flex-a-lite fans flex-a-lite introduced the first electric engine-cooling fan to the u.s after market in 1978 they continually develop refine and expand this product group to provide electric fans for all types of automotive use low profile belt fans use on limited clearance applications low pitch reduces drag on the engine which equates to higher performance improved gas mileage description part no 1017 1070 1018 1080 17 dia w/bl star/alum blades 17 dia w/bl star/stainless blades 18 dia w/bl star/alum blades 18 dia w/bl star/stainless blades standard rotation flex fans highest rated in the industry for high performance heavy duty applications stainless steel blades flex at higher rpm s which reduce drag pumps extra horsepower and improves fuel economy description 12 19 5/16 dia w/blue star 12 19 5/16 dia w/chrome star part no 1312 1319 1320 1390 reverse rotation flex fans high performance reverse rotation flex fans gives maximum airflow at low rpm least amount of resistance against the engine at high speed semi-flex stainless steel blades offer less resistance at highway speeds more horsepower better gas mileage description 16 blue/stainless 17 blue/stainless race fans rigid all metal fans provides maximum airflow at low high rpm conforms to many race regulations is inexpensive to replace description 15 17 dia w/steel blades 15 17 dia w/alum blades part no 1615p 1617p 1715p 1717p part no 1516 1517 description 18-1/4 blue/stainless 19-5/16 blue/stainless part no 1518 1519 oe replacement clutch fans one piece nylon belt fans inexpensive light yet still provides maximum cooling molded nylon fans are ideal for race performance applications when cost or weight is a concern description 14 18 3/8 dia black designed as an o.e replacement clutch fan all steel construction flat black finish universal pattern designed to fit most original equipment clutches description 17 18 19 20 dia dia dia dia 4000 4000 4000 4000 rpm rpm rpm rpm standard rotation 5717 5718 5719 5720 reverse rotation 5917 5918 5919 5920 part no 414 418 fan spacers belt-driven fans work best when they are 3/4 to 1 from the radiator s surface use spacers according to the applications listed for stock engine set-ups multiple spacers may be used up to a maximum of 3 standard 5/8 pilot description part no 501 504 508 516 3/32 thick 1 bolt required fiberglass 1/2 thick 1-1/4 bolt required aluminum 1 thick 1-3/4 bolt required aluminum 2 thick 2-3/4 bolt required aluminum use when replacing clutch fan spacer kits contain spacer shim capscrews lockwashers description part no chrysler 1 x 5/8 female pilot dia 2 x 5/8 female pilot dia 14528 14536 14538 14544 14548 14556 ford corvette 2 x 3/4 female pilot dia ford gm amc 1/2 x 5/8 female pilot dia 1 x 5/8 female pilot dia 2 x 5/8 female pilot dia semi-flex fans stainless steel blades 5000 rpm rated for standard mount with standard rotation pilot hole 5/8 description 17 x 2 1/4 18 x 2 1/4 semi-flex fans for serpentine application stainless steel blades 5000 rpm rated for standard mount in serpentine applications with reverse rotation part no 931700 931800 description 17 x 2 1/4 18 x 2 1/4 part no 911700 911800 some parts are not legal for sale or use in california on any pollution controlled motor vehicle 167

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