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Old 06-07-2019, 10:25 AM   #1
sean1970ss
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Default High rpm 427 bbc build 940hp?

I was talking with a guy he said they dynoed a 427 bbc here while back made 940hp at 9200rpm. .100 over, 14.1 compression .903 lifter, 55mm cam light pistons, and rods tunnel ram. AFR 315 heads 2.300 valve.



Is that possible??? Never seen one make that much power.
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Old 06-11-2019, 09:12 AM   #2
Jim Hanig
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Default Re: High rpm 427 bbc build 940hp?

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I was talking with a guy he said they dynoed a 427 bbc here while back made 940hp at 9200rpm. .100 over, 14.1 compression .903 lifter, 55mm cam light pistons, and rods tunnel ram. AFR 315 heads 2.300 valve.



Is that possible??? Never seen one make that much power.
Sure it is.
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Old 06-11-2019, 12:20 PM   #3
Tom Goldman
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Default Re: High rpm 427 bbc build 940hp?

Built like an old school A/ Modified Production engine.
Some small inch Big Blocks with 348 cranks made near that turning well over 10K RPM's
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Old 06-11-2019, 02:06 PM   #4
Hacksaw
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Default Re: High rpm 427 bbc build 940hp?

Wonder what a J. Armstrong Super Stock engine with a tunnel ram bolted to it would make?
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Old 06-11-2019, 06:29 PM   #5
Dana Fitzpatrick
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Default Re: High rpm 427 bbc build 940hp?

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Wonder what a J. Armstrong Super Stock engine with a tunnel ram bolted to it would make?
I've wondered that myself.One step further,set up some match races against the SS/AH cars.And throw in some SS/A Fords.I'd pay to watch.
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Old 06-11-2019, 06:58 PM   #6
Dick Butler
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Default Re: High rpm 427 bbc build 940hp?

Chrysler would pass a rule...
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Old 06-11-2019, 07:08 PM   #7
killintime6968
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Smile Re: High rpm 427 bbc build 940hp?

Old School Pro Stock.
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Old 06-11-2019, 07:56 PM   #8
1matcoman
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Talking Re: High rpm 427 bbc build 940hp?

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Chrysler would pass a rule...
Now that's funny, right there.....
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Old 06-11-2019, 08:31 PM   #9
HP HUNTER
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Default Re: High rpm 427 bbc build 940hp?

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Wonder what a J. Armstrong Super Stock engine with a tunnel ram bolted to it would make?
Thats a very good question!
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Old 06-21-2019, 11:11 PM   #10
Jim Hawkins
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Default Re: High rpm 427 bbc build 940hp?

Back about 1985 had a 420" big block in a 69 nova for SS/BM. Had a crower crank made at 3.60 stroke, alum. rods, alum. bow tie heads, titanium valves, cast tunnel ram and 2 dominators. That motor saw 8500rpm and ran a best of 9.59 at pomona. Really should have run quicker and made more power than it did but we did manage to win the mile high's with it in 1989.

The motor is still in the car owners garage just as we ran it back then. Dominators and all, and he would like to sell it.
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