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Return to Parts List Category : D- Big Block (Low Deck) : Pushrods : Non-Oil Through HUG 5998 9.850" X 3/8" X .145" WALL PUSHROD $16.80  4130 Hard Tempered Chrome Moly .145" Wall Thickness Hard tubular construction. For use with adjustable rocker arms and hydraulic or solid camshafts. One end is loose and is available as a cup or ball style. Please specify when ordering which style end you require. Use with valve springs having a maximum open pressure of up to 700lbs. Sold individually. Length of the overall pushrod unfinished is 9.850"  The proper pushrod length ensures that you can obtain maximum lift from your camshaft and have the most stable valve train for high RPM operation. If you are unsure about what pushrod length you need, use our length-checking-pushrod tools (Contact us for details). Remember, just because your rocker arms may have an adjusting screw it does not mean the screw is there to make up for a pushrod that is too long or short. The adjusting screw is only to set lifter preload or valve lash. These pushrods are for extreme valve spring pressures when you want to stay with 3/8 diameter.  For us to make a set of custom length and assemble them is $20 each (16 x $20=$320), or $40/pushrod for set up & labor.