New Head Bolts?!Important question...

[latham83]

Hey I just read somewhere that I HAVE to get new head bolts??? Because the stock ones are torque to yield or something and can only be used once?!!!! is that true?!! my bolts look fine and i was going to resuse them? Im putting back on thumper heads, so its the same heads just redone and ported....
also my car is a 1990 5.0....can anyone give me an answer if i have to buy them?!!

 

[latham83]

anybody??

 

[SwAmPf0x]

Yes...regardless of how they look, torque to yield are 1 time use only, you could take your chances if you like, I wouldnt

If you order the ARP's get a tube of the ARP thread lube for the uppers and sealer for the lowers

 

[5spd GT]

Yes...regardless of how they look, torque to yield are 1 time use only, you could take your chances if you like, I wouldnt

If you order the ARP's get a tube of the ARP thread lube for the uppers and sealer for the lowers

Yes you could use them...but not recommended...just go ahead and splurge for some ARP's...

David

 

[7000rpmisheaven]

You wanna to redo all the work because a bolt breaks? Its a small price to pay to be sure.

 

[latham83]

hey which ARP set do i want..i dont want studs..just the bolts i need..im using thumper heads....got a part number anybody?!
and oh god..PLEASE dont tell me that i need all new manifold bolts, and header bolts too.....i think my frpp might come with new ones..i dunon bout gt-40 kit..but can i resue the old bolts of everything else..are the heads the only bolts u gotta buy new that are needed??

 

[GroverDill]

just get the regular arp head bolts, no studs needed.

reuse all the other bolts, just not the head bolts.

 

[latham83]

ok thanks...do i just get the bolts for a 302 or what? they's a couple dif ones at jegs here..
or anyone know of a better place to buy?

 

[SwAmPf0x]

Head Bolt kit # 070-154-3601

Lube # 070-100-9903

Sealer # 070-100-9904

Those numbers are from Jegs

 

[latham83]

ok got it! thanks alot guys...another question though..ok..i have a CHILTONS manual..and in it..it says that the 1993 vehicles have the FLANGED head bolts..and they require a different torque value....now..i have a 1990 and the head bolts i have are HEX HEAD..they have a big ass head with NO WASHER.they are NON-FLANGED. i think these are reusuable..BUT if i buy new ARP BOLTS..it looks like they are flanged...does that mean i have to follow the different FLANGED torque values in the book then?
i think i made that clear enough....someone answer that knows what im talking about

 

[SwAmPf0x]

Use the torque spec specified by ARP that comes with the bolt kit, its dependant on the lube/sealer you use also thats why I recommended you buy theirs