Thread: s/c tensioner bolt size

its a stud with an inverterd torx end....with a 13mm hex nut threaded onto it to hold it on the engine.

you just need a deep 13mm socket and DO NOT LOSE THE NUT.

you wont find another one, it is a special undersized hex nut for the large 10mm threads

lots of guys seem to have trouble finding a socket that will fit into the tensioner. i use a 12 pt deep kobalt socket. fits perfectly.

Originally Posted by 05gtpcg

what is your tb sbc in?

say what?

thats not in his GP lol if it was there would be posts all over about it lol

its a sweet virgin bore "511" 4 bolt main 400 i picked up...and a vintage Martin Turbo systems draw trhough carb turbocharger setup (vintage rayjay aircraft turbo) that i demoded off a 79 corvette...fits under the stock hood, not many kits were made for the vette/Fbodies...far more kits still remain of the truck/RV kit thats much taller and wont fit the cars.

i have a th400 and dana 20 tcase from a 72 commando and 75 cj5 narrow track axles (D44/D30 6 bolt hubs, 3.73) that i was gonna build into a hillbilly 4wd jeep/indycar...change the angle of the 4 corner quarter elliptical springs and toss on 33" tires and take it offroading after a day of racing...