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When using Comp Cams Pro Magnum Rocker Arms, longer Studs must b…

When using Comp Cams Pro Magnum Rocker Arms, longer Studs must be used due to a thicker steel Trunion design, which creates a mechanical stress on the stock length Stud. AFR recommends ARP 134-7104 (or AFR 6409) Studs which are 1.895", or .250" longer than the stock 1.645" AFR 6410 Stud that originally came with the AFR 185 heads.
When using Comp Cams Pro Magnum Rocker Arms, longer Studs must be used due to a thicker steel Trunion design, which creates a mechanical stress on the stock length Stud. AFR recommends ARP 134-7104 (or AFR 6409) Studs which are 1.895", or .250" longer than the stock 1.645" AFR 6410 Stud that originally came with the AFR 185 heads.Original file
When using Comp Cams Pro Magnum Rocker Arms, longer Studs must be used due to a thicker steel Trunion design, which creates a mechanical stress on the stock length Stud. AFR recommends ARP 134-7104 (or AFR 6409) Studs which are 1.895", or .250" longer than the stock 1.645" AFR 6410 Stud that originally came with the AFR 185 heads.

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Close-up down a ported throttle body bore showing polished lip and cast passage Bagged Comp Cams 7972-1 pushrods with part number and barcode Threaded rocker stud with valve locks and a threaded slug on a red shop rag Hand holding a double-ended hex-collar stud with damaged threads Three double-ended threaded studs with hex center flats on red cloth Eight used rocker arm studs arranged in a row on red cloth Comp Cams bag labeled 7972-1 Hi-Tech 5/16 standard pushrod on a plywood workbench 1990 Ford Bronco photo Hand holding a double-ended hex stud with damaged threads over red cloth Three double-ended hex-collar exhaust studs laid out on a red shop rag Eight used double-ended rocker arm studs with hex shoulders on red cloth 1990 Ford Bronco photo Red MSD distributor cap and plug wires with annotated performance parts Red CSR billet aluminum distributor hold-down clamp with stainless stud, nut and washer Polished stainless-steel thermostat housing with upper radiator-hose outlet on white background Red MSD 6A ignition box and coil mounted in an engine bay with sleeved wiring 151photos in this albumView all

When using Comp Cams Pro Magnum Rocker Arms, longer Studs must be used due to a thicker steel Trunion design, which creates a mechanical stress on the stock length Stud. AFR recommends ARP 134-7104 (or AFR 6409) Studs which are 1.895", or .250" longer than the stock 1.645" AFR 6410 Stud that originally came with the AFR 185 heads.

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