This is a very popular replacement where significantly increased capacity is needed. This kit is more popular for highly (electrically) modified cars. Being slightly larger diameter than early (1965-1985) Ford alternators some minor bracket clearance / modification may be needed. You can see this in the “tech info” page.
80 amps at idle (2000 alternator shaft rpm) 160 amps maximum (6000 alternator shaft rpm) the stock belt can be used on original equipment vehicles. All units are 100% NEW and come complete with internal voltage regulator and pulley, each is tested at time of assembly. This alternator includes the upgrade kit for “Upgrade Applications”, for “Direct Replacement” applications this kit is included but not used. Our standard pulley is a 57mm (2-1/4”) 6-groove serpentine.
On vehicles where this is an upgrade we require that you upgrade the main power wire due to higher output than stock
Applications: 1979-1993 Mustang V-8, 1965-1978 Mustang V-8 for cars that have a serpentine belt conversion, any ford Kit Car motor with Serpentine Belt
** note the pictures - this unit is 99% perfect, this was not installed sold or used like other bargain bin units -- upon assembly we noticed a small stress crack in the housing by the cooling fin that was exposed after polishing, this does not appear to be a structural crack and I would not expect it to grow. This is not a stress area on an alternator. Due to this cosmetic flaw we do not want to sell it as a 1st quality unit. Bargain Bin Units are Guaranteed to work as new but carry no warranty.