Push Rods

ON MY 454 IVE GOT ALL THE SAME SIZE PUSH RODS. I HEARD THAT IT IS SUPOSE TO HAVE DIFFERENT SIZE PUSH RODS. I NEED TO KNOW AS SOON AS POSSIBLE SO I CAN ORDER SOME NEW ONES. ANY HELP IS APPRECIATED. THANKS.

all big blocks have short and long have two size and the new roller cam engine have a different size. the stock sizes is 8.280 and9.250 this is not for the new roller engine or tall deck they takes a different size to so do the retro roller cam to the mark4 and5 takes a different size to. comp makes them for this and they make them in 5/16 3/8 7/16 tube for HO use go for the 3/8 tube and 3/8 guide plates a good set this is no place to get cheap:whacked:

IVE GOT SOLID ROLLER EVREYTHING. DOES THAT MAKE A DIFFFERENCE IN SIZE. IF IT DOES WHAT SIZE WOULD I NEED.

most of the stuff i build needs custom sizes push rods. different heads than stock and cutting the deck longer valves and many things. cam .lifters how much cut from the heads and the rocker arms types all plays what size is needed but the stock sizes are 8.280 and9.250 this is on the stander deck 9.800:whacked:

WELL THANKS FOR ALL THE HELP. I MEASURED THE PUSHRODS THAT IVE GOT AND THEY ARE ALL 9.25 SO IM GOING TO GO AHEAD AND JUST ORDER A SET OF STOCK PUSH RODS. ANOTHER QUESTION WHATS THE WORST THING THAT COULD HAPPEN IF IVE GOT THE WRONG PUSH RODS. AND ALSO WHAT ARE THE EFECTS OF HAVING ALL THE SAME SIZE PUSHRODS IS IT AN INCREASE OR DECREASE IN POWER.

there is 20 hp in getting the size push rods rigth . like i said rocker arm s the deck the cam. i do not know how you got this thing to run with the same size push rods??? getting the push rod rigth is worth hp and it keeps the top 1/2 of the engine to gather get this wrong and you have lots of $$ junk i do not know if you hurt the engine you better look it over good **)

WELL THANKS FOR ALL THE HELP. THE MOTOR RAN PERTEY GOOD BEFORE WITH ALL THE SAME SIZE PUSH RODS. SO WHAT I AM GOING TO DO IS ORDER THE STOCK SIZE PUSH RODS ABD HOPE IT RUNS BETTER. THANKS