Out od curiosity whats the torque on head bolts - ZR-1 Net Registry Forums

Y-me · 11-14-2013

These things are tight, I work out and need an extension on a breaker bar to break these head bolts. They laugh at my 150psi impact gun. Whats exactly is the torque rating, Battleship?

A26B · 11-14-2013

The bolts are so long that the torsional twist absorbs the impact pulse without ever applying enough torque at the bottom of the bolt. Breaker bar with cheater is my weapon of choice.

Pete · 11-14-2013

118
What Jerry said.

Pete

11-14-2013	#1
Y-me Join Date: Jul 2011 Location: Ft Myers Fl Posts: 224	Out od curiosity whats the torque on head bolts These things are tight, I work out and need an extension on a breaker bar to break these head bolts. They laugh at my 150psi impact gun. Whats exactly is the torque rating, Battleship?

11-14-2013	#2
A26B Join Date: Dec 2003 Location: Arcadia,OK Posts: 3,394	Re: Out od curiosity whats the torque on head bolts The bolts are so long that the torsional twist absorbs the impact pulse without ever applying enough torque at the bottom of the bolt. Breaker bar with cheater is my weapon of choice. __________________ Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 *ZR-1*, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed.

11-14-2013	#3
Pete Join Date: Dec 2003 Location: Chicagoland,IL Posts: 2,679	Re: Out od curiosity whats the torque on head bolts 118 What Jerry said. Pete __________________ '91 #1635 PoloGreen 350 LT5 11.09 @ 129.27 11.04 @ 128.86 474RWHP 400RWTQ http://www.youtube.com/watch?v=SFNFOhGGlR4 http://www.youtube.com/watch?v=ZlRIOMwaDYY https://sites.google.com/site/peteszr1garage Last edited by Pete; 11-14-2013 at 09:33 PM.