Differences running 5/16 versus 3/8 Pushrods
#1
TECH Enthusiast
Thread Starter
iTrader: (7)
Join Date: May 2002
Location: East Tennessee
Posts: 747
Likes: 0
Received 0 Likes
on
0 Posts
Differences running 5/16 versus 3/8 Pushrods
Besides diameter and strength differences what other differences are there and when would you choose on over the other? 5/16 is stock, right? Does anything need to be modified to run 3/8?
#2
TECH Veteran
iTrader: (21)
5/16" is stock. When one gets into large spring pressures, the pushrods could bend causing loss in valve lift. I would assume that mostly solid roller applications would worry about this, but if you had a very stout hydro spring, it could come into play. The pushrod holes on the heads would need to be enlarged to fit the 3/8 PR. The new ET heads are already enlarged.