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helicoiled headstuds and high boost.....

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Old 03-02-2006, 08:42 AM
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Default helicoiled headstuds and high boost.....

I am looking into buying a block that may need to be helicoiled for 1-2 headstuds. Its a sleeved block and i hope to make 400 whp with it, will the heli-coils present a problem with the headgasket holding up?
TIA!!
Old 03-02-2006, 09:23 AM
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Default Re: helicoiled headstuds and high boost..... (caspers_sfwd)

Helicoils are pretty damn strong.

The only thing I would be worried about is if there is enough material around the area you will have to drill and tap.

Old 03-02-2006, 10:06 AM
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Default Re: helicoiled headstuds and high boost..... (_BEN_)

woah, the helicoils do not hold up well. Do a search. You want a solid insertplug. The timecert is the only way to go IMO. I had to do 4 on my wifes built motor. The head studs held with zero problems. Ran all season 22-25 psi 454 whp. I have heard many times of the helicols failing. Do a search on how to get the kit and install it .
You want the 1inch slugs not the 1/2 inch.
Old 03-02-2006, 10:06 AM
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Default Re: helicoiled headstuds and high boost..... (_BEN_)

DO NOT HELI-COIL THE HEADSTUDS! Use a Time-Sert. They are MUCH better than a heli-coil!
Old 03-02-2006, 11:04 AM
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Default Re: helicoiled headstuds and high boost..... (Mazda 3 Racer)

Thanks. I just wanted to make sure i could make use of it.
Old 03-02-2006, 11:45 AM
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Default Re: helicoiled headstuds and high boost..... (caspers_sfwd)

1/2" headstuds. If you know a good machinist. Thats the way I fixed three messed up holes in my block. Fix and an upgrade all at one time.
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