AFR head guys....my rocker stud snapped!!!

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UnderdogGN

New Member

May 7, 2006

74

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Jan 11, 2007

#1

• Jan 11, 2007

• #1

hi guys...i bought the AFR 165's for stud mounted rockers.....i ran the car for about a month with this new combo and then had to park it because i "thought" i blew the engine..meaning it had a BAD rod knock....well 3 months later i decided to start pulling the engine to be rebuilt. So i took off the valve cover and one of my rockers is laying there!!! I guess the knocking noise was the pushrod coming up and whacking my valve cover. The stud that the rocker was bolted to snapped because of a bad casting! I thought these were supposed to be good quality heads...wtf is this about?!!? Anyone ever have this happen before??
thanks

 

Mr. Rustypwnz

Advanced Member

Jun 1, 2005

1,761

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indianapolis/ valdosta ga

Jan 11, 2007

#2

• Jan 11, 2007

• #2

send em in and make them pay for the damages to your ride!!

 

egan_gt

New Member

Apr 14, 2005

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hibbing MN

Jan 11, 2007

#3

• Jan 11, 2007

• #3

happened to me also.... I had to order longer rocker studs. I didnt have many turns left when I tightened them down. They were a little short for the roller rockers. I believe I ordered a set that were a 1/2" longer

 

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Blue89Hatchback

Founding Member

May 3, 2002

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Jan 11, 2007

#4

• Jan 11, 2007

• #4

I've also heard of this happening before. AFR put the wrong length studs on not leaving enough length for the adjusting nut. If you pick up a set of the ARP's for those heads that should fix your problem. Hopefully your engine didn't get hurt bad. Good luck

 

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Daggar

New Member

Jul 19, 2004

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Jan 11, 2007

#5

• Jan 11, 2007

• #5

Same thing happened to me...

I was on the way back to Illinois form PA and snap! Thank god it was on the intake side.

I replaced all of the studs with a set from ARP. No problems since.

 

Rick 91GT

Mustang Master

Nov 29, 1999

9,692

95

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PA

Jan 12, 2007

#6

• Jan 12, 2007

• #6

Usually it happens on heads with a heavier spring added, I also wish AFR used a higher quality stud since this is not all that un common. Most of the time the length is OK, but I have used longer studs from SPS and ARP.

Upgrade them all to a set of ARP's

 

302RollinHard

New Member

Sep 26, 2005

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Columbus, OH

Jan 12, 2007

#7

• Jan 12, 2007

• #7

Just a note to the people. Before you put any heads you buy (especially used heads) replace the studs with a new set of ARP's unless they have new ones installed. I replaced my studs with new arp ones even though they visually looked essentially new. Besides they are only like 20-25 bucks. Not that the head manufacturers mean to give inferior parts, but they are in the business of making as much money as possible and certain quality risks are taken to save production costs. Let AFR know about your problem and I am positive they will make it right.

 

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UnderdogGN

New Member

May 7, 2006

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Jan 12, 2007

#8

• Jan 12, 2007

• #8

thanks for the replies guys....but yea well i called AFR to see what the deal is about this. So i guess they are sending me out all new "upgraded" rocker studs..not sure what the upgrade is but hopefully this will never happen again...but on the other hand im sooo glad it is not a rod knock, plus now i have a bunch of extra money to spend since i was saving for a rebuild.

 

Modular2v

Founding Member

Jun 30, 2002

3,222

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oklahoma

Jan 12, 2007

#9

• Jan 12, 2007

• #9

wow that sucks! Twisted wedge FTW!!!!!!!!

 

88Stang331

New Member

Mar 30, 2006

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Jan 12, 2007

#10

• Jan 12, 2007

• #10

Modular2v said:

wow that sucks! Twisted wedge FTW!!!!!!!!

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