High rpm 427 bbc build 940hp?

sean1970ss · 06-07-2019, 10:25 AM

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.

Jim Hanig · 06-11-2019, 09:12 AM

Quote:

Originally Posted by sean1970ss

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.

Tom Goldman · 06-11-2019, 12:20 PM

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

Hacksaw · 06-11-2019, 02:06 PM

Wonder what a J. Armstrong Super Stock engine with a tunnel ram bolted to it would make?

Dana Fitzpatrick · 06-11-2019, 06:29 PM

Quote:

Originally Posted by Hacksaw

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.

Dick Butler · 06-11-2019, 06:58 PM

Chrysler would pass a rule...

HP HUNTER · 06-11-2019, 08:31 PM

Quote:

Originally Posted by Hacksaw

Wonder what a J. Armstrong Super Stock engine with a tunnel ram bolted to it would make?

Thats a very good question!

Jim Hawkins · 06-21-2019, 11:11 PM

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.

joespanova · 07-09-2019, 11:17 AM

Quote:

Originally Posted by sean1970ss

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.

I'd like to look at those heads , because its highly unlikely , no , make that definitely NOT anything close to what AFR produced...so this suggestion is somewhat "misleading". The only thing AFR 315 about those heads is the casting. Contemporary t-ram / carbs , vac pump and all the other bells and whistles .....

sean1970ss · 07-10-2019, 03:22 PM

Quote:

Originally Posted by joespanova

I'd like to look at those heads , because its highly unlikely , no , make that definitely NOT anything close to what AFR produced...so this suggestion is somewhat "misleading". The only thing AFR 315 about those heads is the casting. Contemporary t-ram / carbs , vac pump and all the other bells and whistles .....

Tony Mamo did the heads. Never witnessed it or had anything to do with it.

06-07-2019, 10:25 AM	#1
sean1970ss Junior Member Join Date: Aug 2015 Posts: 67 Likes: 17 Liked 10 Times in 6 Posts	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.

06-11-2019, 12:20 PM	#3
Tom Goldman VIP Member Join Date: Jan 2003 Location: Allentown,PA Posts: 2,476 Likes: 889 Liked 882 Times in 236 Posts	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 __________________ Tom Goldman 1500 SG , 1506 STK

06-11-2019, 02:06 PM	#4
Hacksaw Senior Member Join Date: Sep 2016 Posts: 882 Likes: 206 Liked 310 Times in 174 Posts	Re: High rpm 427 bbc build 940hp? Wonder what a J. Armstrong Super Stock engine with a tunnel ram bolted to it would make?

06-11-2019, 06:58 PM	#6
Dick Butler VIP Member Join Date: Oct 2002 Location: Richmond Indiana Posts: 1,196 Likes: 5 Liked 32 Times in 19 Posts	Re: High rpm 427 bbc build 940hp? Chrysler would pass a rule...

06-21-2019, 11:11 PM	#8
Jim Hawkins Member Join Date: Jan 2010 Posts: 198 Likes: 89 Liked 115 Times in 35 Posts	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.