Why to use hardened pushrods....
I didn't know my Edelbrock heads had hardened valveguides. Neither did my mechanic, who will take no blame for any of this even though I trusted him to know what he was doing. Whatever. So yeah, the valve guides sawed through the pushrods. Every single pushrod has heavy wear marks...they were all on the verge of breaking. This one finally did. On the bottom is a piece of the valve guide that finally broke.
__________________
'91 Mustang GT 5.0 AOD Daily Driver
Current stats: NEW 302 short block, E-303 cam (@.050, 220/220, .498/.498, 110 degrees), 1.6 roller rockers, Performer RPM heads (aluminum, 1.9/1.6, 60cc chambers), Cobra intake, Granatelli 75mm MAF, Billet AFPR, Equal-Length Shorty Headers, Off-Road X Pipe, Flowmasters, 4.10 POSI
13.73 at 103.8, ~2.2 60'
|