LS7 Pushrod ?
Thread Starter
Pro
Joined: Jun 2013
Posts: 527
Likes: 8
LS7 Pushrod ?
I notice with my Mast 305 heads and a 3/8" pushrod the intake side is very close to the side of the hole in the head but it does not seem to touch maybe like .005 clearance though it's full travel cycle is that the norm on LS7's in general? Exhaust side is fairly centered just the intake is offset all cylinders and you can look down the hole to the lifter and see the offset.
Melting Slicks
Joined: Feb 2004
Posts: 3,307
Likes: 111
From: Tucson AZ
Wow, those are big heads! You are getting into Big Block Chevy head territory.
If it even rubs slightly, you need to clearance the heads. If you can slide a .005" feeler gauge through, then you should be okay (I would prefer .025" because of heat expansion and defelction). Make sure you check them through the entire travel.
If it even rubs slightly, you need to clearance the heads. If you can slide a .005" feeler gauge through, then you should be okay (I would prefer .025" because of heat expansion and defelction). Make sure you check them through the entire travel.
