Main studs
Le Mans Master
Joined: Oct 2012
Posts: 9,366
Likes: 969
From: Out back
This. Can you? Yes. Should you? Not if you want your engine to last more than a few hours.
Thread Starter
Drifting
Joined: Aug 2017
Posts: 1,833
Likes: 337
From: Dayton, OH
So it would seem.
Thanks!
I found this Googling changing main bolts "This is a quote from ARP (When changing from factory fasteners to high strenth fasteners, clamping force and tolerances WILL change. The main bores should be align honed using the fasteners which will be installed at the recommended preload)
Any blocks or engines we build that come through our shop we ALWAYS line hone them and replace the stock hardware to ARP and we have never had any problems using this procedure."
It was old but I can't see why it would have changed.
Thanks!
I found this Googling changing main bolts "This is a quote from ARP (When changing from factory fasteners to high strenth fasteners, clamping force and tolerances WILL change. The main bores should be align honed using the fasteners which will be installed at the recommended preload)
Any blocks or engines we build that come through our shop we ALWAYS line hone them and replace the stock hardware to ARP and we have never had any problems using this procedure."
It was old but I can't see why it would have changed.
Race Director
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
Aluminum blocks and bearing caps distort like crazy, more tension/pressure = more bendy. Is it enough to matter? No clue. Maybe if you could torque them the same as stock they’d be fine. Main bolts don’t really seem to be a weakness on these motors though, do they?
Last edited by schpenxel; Sep 17, 2020 at 11:43 PM.
