Harland Sharp rocker arms

[McGaviR]

I am looking at buying a set of Harland Sharp rocker arms to replace the failing original adjustable ford rocker arms. The engine is a 482cui, edelbrock heads, hydraulic roller cam with .600 lift. I am already using the Precision Oil Pumps heavy duty shafts and their end supports, and have already had a set of custom push rods made to suit the current setup. I am hoping that I can just replace the rocker arms and keep on using everything else. I am hoping that someone can confirm that changing the rocker arms from original to Harland Sharps will not require a change in push rod length.

Thanks in advance

[fryedaddy]

i did not have to change my pushrods on my bbm head 428.harland sharp says to have 0-2 threads showing on the bottom of the adjuster screws after adjusting.i had 1/2 thread showing.be sure to use studs instead of your stock rocker bolts,sometimes they are too long for the aftermarket rockers.this does not mean it will work for you,i have a flat tappet cam and lifters and i dont know if roller lifters are the same.

[Stangman]

Same here. I have the same setup that you are looking to buy and I have 3 threads showing, again not sure about hydraulic rollers. 

[Thumperbird]

You'll have to shim the stands and for optimum geometry new rods are likely.