Cant remove head bolts?

[Siik Chipmunkz]

Recently got valve covers off and my head bolts are froze, any tips?

 

[Addermk2]

Try harder.

 

[fomoco85]

Just be careful. you don't want to hit your ears with the wrench. But really, use an impact gun or if ya don't have one use an impact tool and a mallet

 

[fomoco85]

It's only 70-80 ft lbs 110 on a 351 ( note the gasket instructions (FelPro Z10111) say 115 on the top and 105 on the bottom. The stock 351w bolt holes are all blind

 

[sn95 bullitt]

Someone say head?

 

[CC'S95GT]

righty tighty, lefty loosey.

 

[DeepList]

I use an extremely large breaker bar and they'll break lose pretty easily.

 

[daltonduree]

do not use an impact! cast iron no es good. use a big ass braker bar.

 

[chris91]

What's wrong with using a impact to take em off?

 

[daltonduree]

What's wrong with using a impact to take em off?

whats wrong with it? cast iron is very brittle. you can pull the threads right out of the block. like i said. big f.ucking wrench.

 

[5litrarag]

Big breaker, spray bolt with lots of PB Blaster, add a lil heat to the bolt and it should break loose easy.

 

[95opal]

whats wrong with it? cast iron is very brittle. you can pull the threads right out of the block. like i said. big f.ucking wrench.

WTF is this kid talking about. OP like stated a large breaker bar and BFH is your best bet to break them loose. An impact is fine and youll snap the bolt if its frozen way before you pull the threads right out of the block lol

JFYI Crack all bolts open before you start removing them all

 

[KillNThrill24]

Get a decent sized breaker bar and put some muscle into it. You'll feel big and strong when you crack them loose.

I used a really long torque wrench (yeah yeah I know but I don't use that as a torque wrench anymore, it's about 2ft long) and just used my body weight to crack mine. They aren't terrible you just need to find the right leverage

Sent from my SCH-I605

 

[fomoco85]

Okay guys. I'm sure the OP is smart enough to use a long breaker bar. If that's not working and OP has to ask for help? Yes an impact gun to remove is fine. As far as threads? The bolt will break before that happens.. Lets just help the OP. HEY OP.... Any luck?

 

[daltonduree]

be careful. i have pulled them out before.

 

[full force]

Threads can come out, although unlikely, BBC MArkIV blocks did that a lot...

Impact is fine also, its all about muscle, I have yet to ever have issues with breaking them..

 

[330CubeGt]

How much do you weigh? Sounds like some elbow grease would get them out.

Use a quality impact, and zip the bolts out.Don't worry about the thread yanking neggitive Nancy's.

I have seen more damage done by slow constant force then from an impact.