Roots for 427 SBC?
02-26-2003, 06:11 PM
#1
Moderator
Thread Starter
Join Date: Jan 2000
Location: Mercedes Norte, Heredia, Costa Rica
Posts: 20,981
Likes: 0
Received 9 Likes
on
8 Posts
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Roots for 427 SBC?
Just doing a little dreaming... what would be a good roots blower on a stroked 400 SBC for street/strip? Something that would make about 5 psi of boost. I'm not thinking about anything insane, just a little disturbed. 
A 6-71 would probably do it but is physically a bit big. Could a 142 or a 177 be made to work reasonably well?
A 6-71 would probably do it but is physically a bit big. Could a 142 or a 177 be made to work reasonably well?
02-26-2003, 07:11 PM
#2
TGO Supporter
Join Date: Jul 2001
Location: Cheyenne, Wyoming
Posts: 4,991
Likes: 0
Received 1 Like
on
1 Post
Car: 1992 B4C 1LE
Engine: Proaction 412, Accel singleplane
Transmission: built 700R4 w/custom converter
Axle/Gears: stock w/later 4th gen torsen pos
LOL - "I just want a teensy bit of boost for my monsterous sized small block chevy..."
02-26-2003, 08:41 PM
#3
Moderator
Thread Starter
Join Date: Jan 2000
Location: Mercedes Norte, Heredia, Costa Rica
Posts: 20,981
Likes: 0
Received 9 Likes
on
8 Posts
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Originally posted by B4Ctom1
"I just want a teensy bit of boost for my monsterous sized small block chevy..."
"I just want a teensy bit of boost for my monsterous sized small block chevy..."
02-27-2003, 12:33 AM
#4
Senior Member
Join Date: Jan 2001
Location: South NJ
Posts: 908
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1988 Mustang GT
Engine: 302
Transmission: T5
sure you can do it, but your thirst for more boost will need to be compensated after you get tired of that little blower
02-27-2003, 02:08 AM
#6
Moderator
Thread Starter
Join Date: Jan 2000
Location: Mercedes Norte, Heredia, Costa Rica
Posts: 20,981
Likes: 0
Received 9 Likes
on
8 Posts
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Originally posted by dans82bird
sure you can do it, but your thirst for more boost will need to be compensated after you get tired of that little blower
sure you can do it, but your thirst for more boost will need to be compensated after you get tired of that little blower
I guess I'm thinking more about how much blower displacement it would take to start building boost in a larger engine. What kind of pulley setup would it take to make about 5 or 6 psi?
02-27-2003, 02:16 AM
#7
Moderator
Thread Starter
Join Date: Jan 2000
Location: Mercedes Norte, Heredia, Costa Rica
Posts: 20,981
Likes: 0
Received 9 Likes
on
8 Posts
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Originally posted by sleepybu
since there's a 177 kit for the 454 it should do a b&m 250 might work to
since there's a 177 kit for the 454 it should do
a b&m 250 might work to Trending Topics
02-27-2003, 02:42 PM
#8
Senior Member
Join Date: Dec 2002
Location: BC Canada
Posts: 531
Likes: 0
Received 0 Likes
on
0 Posts
Car: 81Malibu
Engine: SBC 355
Transmission: TH400
the 250 only works with short h2o pumps
don't know about hei clearance
http://www.weiand.com/HiOctn/ProdLin...-250_CSBP.html
http://www.weiand.com/HiOctn/ProdLin.../SCK/6500.html
:hail: :rockon:
don't know about hei clearance http://www.weiand.com/HiOctn/ProdLin...-250_CSBP.html
http://www.weiand.com/HiOctn/ProdLin.../SCK/6500.html
:hail: :rockon:
02-27-2003, 03:55 PM
#9
Moderator
Thread Starter
Join Date: Jan 2000
Location: Mercedes Norte, Heredia, Costa Rica
Posts: 20,981
Likes: 0
Received 9 Likes
on
8 Posts
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
That's interesting though, I'd only seen BBC kits for the 250.
02-27-2003, 06:39 PM
#10
Moderator
Thread Starter
Join Date: Jan 2000
Location: Mercedes Norte, Heredia, Costa Rica
Posts: 20,981
Likes: 0
Received 9 Likes
on
8 Posts
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
What about a 4-71? Does anyone still make manifolds for them?
02-27-2003, 06:56 PM
#11
Senior Member
Join Date: Dec 2002
Location: BC Canada
Posts: 531
Likes: 0
Received 0 Likes
on
0 Posts
Car: 81Malibu
Engine: SBC 355
Transmission: TH400
250 POWERCHARGER
Chevrolet Small Block V-8
Part #: 77-250CSBP-1 (Polished Finish)
--------------------------------------------------------------------------------
Part #: 77-250CSB-1 (Satin Finish
...that right off the site:lala:
Chevrolet Small Block V-8
Part #: 77-250CSBP-1 (Polished Finish)
--------------------------------------------------------------------------------
Part #: 77-250CSB-1 (Satin Finish
...that right off the site:lala:
Thread
Thread Starter
Forum
Replies
Last Post
gixxer92
Engine/Drivetrain/Suspension Parts for Sale
9
05-18-2017 11:20 AM
darwinprice
Organized Drag Racing and Autocross
17
10-11-2015 11:51 PM
92rsvortec350
Engine/Drivetrain/Suspension Parts for Sale
19
10-09-2015 09:39 AM
Damon
Tech / General Engine
8
09-26-2015 04:29 PM
