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Author Topic: Scat 6.70 h beam rods ..  (Read 2927 times)

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bn69stang

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Scat 6.70 h beam rods ..
« on: January 02, 2015, 08:00:15 PM »
This question is on the strength of the scat h beam 6.70 inch , Barry has mentioned on numerous occasions that the rods , and cranks are good to 700 - 750 hp levels . Is that with the bolt as delivered or with the arp 2000 upgrade ? , and if as delivered what would the rating be with the arp upgrade ? .. Bud
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Barry_R

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Re: Scat 6.70 h beam rods ..
« Reply #1 on: January 02, 2015, 08:17:28 PM »
I've run the basic rod with 8740 bolts at 7000 RPM and 700HP several times.  I cannot tell you when it will fail 'cuz I have not failed one yet.  I would expect that a road race application would mandate a move to a higher quality rod such as a Callies, as would an 8000RPM deal.
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bn69stang

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Re: Scat 6.70 h beam rods ..
« Reply #2 on: January 02, 2015, 08:30:01 PM »
Thanks Barry , i guess i was thinking that under extreme conditions the 8740 bolt would fail before the rod ? , and that the arp 2000 bolt would push the rods hp level up ? .. Bud
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Barry_R

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Re: Scat 6.70 h beam rods ..
« Reply #3 on: January 02, 2015, 08:59:53 PM »
The 2000 bolt is doubtless a better part.
But at that level you may as well spring for the Callies rods
They are under a grand/set and are way better parts
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bn69stang

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Re: Scat 6.70 h beam rods ..
« Reply #4 on: January 02, 2015, 09:21:59 PM »
Point taken Barry , thanks again i am putting my idea s together for my 427 build , and would rather over build the short block , so a steel crank to go along with the callies rods , i am thinking 496 inchs and 2 - 4 s .. Bud
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69 mach 1 , 428 C J  Blue Oval Performance BBM heads -T@D rocker s- Blue thunder intake - Comp hydr roller - MSD ignition - FPA headers- Holley 850 hp double pumper - TKO 600 - 9 inch 3.89 Detroit Locker . ride tech coil over conversion - power rack @ pinoin steering - 13 inch drilled @ slotted 4 wheel disc brakes ..
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