Head Bolts

[relyt120]

Does anyone know if i can use Felpro :  ES71102  in my 89 auto 2wd 4.0l MJ? They are listed for 96-01 XJ but I cannot find any listed for renix XJ/MJ locally and I need them this weekend.

 

Opinions appreciated.

[jimoshel]

I have a 1987, 1989,1996 and a 1998 4.0 engines sitting side by side. Just looking at them I can not see any difference between the head bolts.For what it's worth.

[relyt120]

Thanks Jim, I thought they would be the same but the computer insists they are different. I went ahead and picked up a set and will attempt to use them when I change my head gasket tomorrow. Time will tell if they are the same. :thumbsup:

[Alexia]

See those two studs sticking out of the smaller bolts in the bottom of the Fel-Pro product picture? Those are locator pins for the newer style valve cover gasket. Those bolts go in holes #8 and #9. At worst you buy the newer style valve gasket if the replacement does not have the holes.

 

 

Head bolt sticking up at hole #8.

 

Can see in the back where the gasket slips over it at hole #9.

[relyt120]

I failed to mention that I have a newer style valve cover so it has the newer gasket. I will reuse it since its less than a year old and also is a nice felpro one.

[Alexia]

I failed to mention that I have a newer style valve cover so it has the newer gasket. I will reuse it since its less than a year old and also is a nice felpro one.

You are fine then. :D

[carnuck]

The difference is the newer headbolts are torque to yield (ie: Not for re-use)

[HOrnbrod]

The difference is the newer headbolts are torque to yield (ie: Not for re-use)

 

Are you saying "newer" 4.0L engines used TTY head bolts? What's your definition of "newer"?

[carnuck]

According to Felpro the change was in '97