427 small block?
Pro
Joined: Mar 2000
Posts: 658
Likes: 7
From: Perth Amboy New Jersey
Place this question in C4 performance Tech section, there are a few 427 out there.
Yedi
Team Owner
Joined: Apr 1999
Posts: 21,953
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From: Reno Nevada
2024 C3 of the Year Finalist- Modified
A cubic inch is a cubic inch. To be in the real same league as big block requires heads like Brodix -12 with 272 cc intakes and then you can approach the 400 CFM levels just like the big block boys.
I drive a nice 434 SBC
I drive a nice 434 SBC
Last edited by gkull; Sep 20, 2007 at 11:18 AM.
Drifting
Joined: Feb 2003
Posts: 1,976
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From: San Antonio Texas
I think the BBC boys are getting around 400cfm these days... AFRs' new 195 cc heads flow 280cfm/Street version or the 300cfm/Comp version @.600". Either of these would work very well with a 4" stroke SBC motor.
Team Owner
Joined: Apr 1999
Posts: 21,953
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From: Reno Nevada
2024 C3 of the Year Finalist- Modified
To the poster. I use Dart 227 cc heads with lower 300+ cfm. They are about the minimum you would want to use
Le Mans Master
Joined: Aug 2001
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From: Bradenton FLORIDA
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Joe Kucinski
Team Owner
Joined: Apr 1999
Posts: 21,953
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From: Reno Nevada
2024 C3 of the Year Finalist- Modified
My compression is 11.8 You only have a limited number of choices with 434 ci small block racing pistons made for up to .800 lift with altered degree heads with bigger diameter valves like 2.200/1.625.
Instead of typing it all again. Go to my forum home page.
Instead of typing it all again. Go to my forum home page.
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
In case you did not know to click on the persons name in near the Avitar.
http://www.corvetteforum.net/c3/gkull/
http://www.corvetteforum.net/c3/gkull/
Race Director
Joined: Oct 2005
Posts: 12,468
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From: Camp Verde AZ
C1 of Year Finalist (performance mods) 2019
2017 C1 of Year Finalist
But an LS7 won't easily fit in my '61 w/o a lot of work,a nd it won't look like a 283....
I am finishing up a 427 on a Dart little M block with Dart Pro1 Alum CNC heads. Bore is 4.190", stroke is 3.85".
Engine analyzer shows this putting out about 520 T/HP with a fairly mild solid roller of .520/.550" lift and 224/232 duration at .050". should be nicely streetable.
Doug
I am finishing up a 427 on a Dart little M block with Dart Pro1 Alum CNC heads. Bore is 4.190", stroke is 3.85".
Engine analyzer shows this putting out about 520 T/HP with a fairly mild solid roller of .520/.550" lift and 224/232 duration at .050". should be nicely streetable.
Doug
Team Owner
Joined: Apr 1999
Posts: 21,953
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From: Reno Nevada
2024 C3 of the Year Finalist- Modified
In this video I shift from 4-5 at @ 135mph and top out in the 150's before slowing down just past the flag stand.
http://s124.photobucket.com/albums/p...nt=passBMW.flv
Intermediate
Joined: Jun 2006
Posts: 43
Likes: 0
From: Redding CA
www.worldcastings.com
They sell turnkey smallblocks. Their detuned 427 comes with 550hp while their racing 427 smallblock puts out 675hp. They even sell a 600hp 454 smallblock with a two year warranty.
They sell turnkey smallblocks. Their detuned 427 comes with 550hp while their racing 427 smallblock puts out 675hp. They even sell a 600hp 454 smallblock with a two year warranty.
Last edited by CRVT427; Dec 15, 2007 at 02:04 AM.
Team Owner
Joined: Mar 2001
Posts: 30,846
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From: Boston, Dallas, Detroit, SoCal, back to Boston MA
Last weekend at the track my 434 ci small block had enough TQ to overpower 12X27 road racing slicks nearly anywhere on the track. I have to bog the motor in 3rd and 4th gear to keep from spinning to hard out of the turns. So i'm not sure how you could get more power to really work in a street machine.
In this video I shift from 4-5 at @ 135mph and top out in the 150's before slowing down just past the flag stand.
http://s124.photobucket.com/albums/p...nt=passBMW.flv
In this video I shift from 4-5 at @ 135mph and top out in the 150's before slowing down just past the flag stand.
http://s124.photobucket.com/albums/p...nt=passBMW.flv
Be sure to post that up in the road racing section
Safety Car
Joined: Oct 1999
Posts: 4,524
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From: Mt Juliet TN
Cruise-In 2, 9 & 10 Veteran
St Jude donor '09
Melting Slicks
Joined: Feb 2003
Posts: 3,053
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St. Jude Donor '03,'11
There must be a standard recipe to do this.
I have a Rodeck 350+ block i would like to install a max stroke crank.
What i understand of it is.
you need a small base circle cam and/or raised cam location.
Wider pan rails and/or grinding on the pan rails for clearance. How much can you grind before you ruin the block???
Do you have to grind on the rods???
Someone want to fess up?