New head bolts with 351??

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Old 12-08-2011, 05:46 AM
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Default New head bolts with 351??

Do you use new head bolts when doing the 351 or other similar work? Doesn't seem like many, if any, mention it. Had a gear head today suggest it as "cheap insurance." Wasn't planning on it. Should I?

thx
 
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Old 12-08-2011, 06:13 AM
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I just used the original ones... but my bike only had 2,500 klms on it when I did the 351cc.

Bill said I didn’t need to re-torque them but I had the valve cover off after about 100klms on the kit, putting new valve shims in so I checked the torque and three of the four were still perfect and I got a tiny (and I mean really tiny) bit more on the other. The two smaller bolts were also still fine.
 
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Old 12-08-2011, 01:34 PM
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It's not a diesel engine. No new head bolts needed.
 
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Old 12-08-2011, 02:20 PM
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I've had my head off and on about six or seven times and still using stock bolts.
 
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Old 12-08-2011, 02:26 PM
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Originally Posted by ol'klx-er
It's not a diesel engine. No new head bolts needed.
my honda civic's are torque to yield and are not reusable. it all depends on what they use. a couple of bucks for cheap insurance is better then none at all.
 
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Old 12-08-2011, 02:28 PM
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Originally Posted by punkenduro09
my honda civic's are torque to yield and are not reusable. it all depends on what they use. a couple of bucks for cheap insurance is better then none at all.
Yep, it's a good practice to replace head bolts/studs on most motors. Especially FI motors. The bolts/studs can stretch.

I've done it on every head gasket job on my boosted cars.
 
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Old 12-08-2011, 02:39 PM
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Seems I've fallen behind.
Livin' in the past.
LOL
 
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Old 12-08-2011, 02:42 PM
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Originally Posted by CousinLarry
on my boosted cars.
You're a car thief?

I think the "cheap" insurance will run about $20-$25. Probably passing on this one.
Thanks all.
 
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Old 12-08-2011, 06:29 PM
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boosted= supercharger or turbo lol

well blown is supercharge so maybe its just for turbo or nos idk...

Any way, I doubt you need new head bolts, its not like some fancy racing bike... its a rugged single, and my manual says nothing about the bolts being trash after one torque like most fancy import car manuals do.
 
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Old 12-08-2011, 09:47 PM
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Originally Posted by IDRIDR
You're a car thief?

I think the "cheap" insurance will run about $20-$25. Probably passing on this one.
Thanks all.
LOL Car Booster
Can you get me a new truck Larry?

I re-used my head bolts. The man-well didn't say anything about replacing them.
Dan
 
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