406 SBC what solid roller cam suggestions - Yellow Bullet Forums

Go Back   Yellow Bullet Forums > Technical Section > Naturally Aspirated - Uratchko Racing Engines

Naturally Aspirated - Uratchko Racing Engines

Reply
 
Thread Tools Display Modes
Old 05-08-2009, 05:40 AM   #1
Aussie400
Senior Member
Smoked another BBC
 
Aussie400's Avatar
 
Join Date: Apr 2009
Location: BUTFUKNOWHERE
Posts: 1,371
Default 406 SBC what solid roller cam suggestions

Scat H Beam 5.7 Rods
Eagle Steel Crank
11.5 Comp
Afr 227 Cnc Compertion Heads ( out of the box)
Brodix 1002 hvh Manifold
950 Hp Holley
Harland sharp 1.6 .50 offset rockers 5/16 pushrods
Crower or comp cams Roller lifter (not sure yet)
Australian BP 98 unleaded octane fuel

How much HP from this combo ? with the right cam ?

Any help would be apprecatted

Greg

thanks Greg
Aussie400 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-08-2009, 06:05 AM   #2
johnnygohard
Junior Member
Spooled up
 
Join Date: Jul 2008
Location: australia zoo beerwah
Posts: 151
Default Re: 406 SBC what solid roller cam suggestions

lunati 276/284 108 ,sounds like a very simillar combo to mick varneys old hatch it made 650 crank hp and 9.70s
johnnygohard is offline   Reply With Quote
Old 05-08-2009, 07:23 AM   #3
Horndog
Senior Member
Smoked Another SBC
 
Join Date: Nov 2007
Location: Terre Haute, Indiana
Posts: 37,286
Default Re: 406 SBC what solid roller cam suggestions

http://www.lunatipower.com/Product.aspx?id=1810&gid=250


This is the Lunati roller I have in my 406. It is a small base circle cam (.900"). I have the Lunati Pro-Mod rods (I-beam) in mine. You will want to check rod/cam clearance with those Scat rods.

The cam is very similar to the one above but the LSA is 106, not 108. Maybe a typo on johnny's part.

It is very easy on the valvetrain. I run T&D shaft rockers on Brodix Track 1 heads.

I'd bump up the compression some if you can. I see you're running pump swill with a 98 octane rating. I'd think that would support 12.1 to 12.5:1 comp.
__________________
Jim Horner

" ...oh no, what the fuck was that?
...the motor ... we've thrown a rod.
...is that serious?
...yup."
Horndog is offline   Reply With Quote
Old 05-08-2009, 08:40 AM   #4
MCEcomp
Member
Pullin gears
 
MCEcomp's Avatar
 
Join Date: Jun 2007
Location: melbourne Australia
Posts: 758
Default Re: 406 SBC what solid roller cam suggestions

If your stuck with 11.5:1 comp something like a crane R-270/420-s6 would be a better choice
MCEcomp is offline   Reply With Quote
Old 05-08-2009, 08:54 PM   #5
trmnatr
Butch
Smoked Another SBC
 
trmnatr's Avatar
 
Join Date: Apr 2009
Location: Maryland
Posts: 7,578
Default Re: 406 SBC what solid roller cam suggestions

Quote:
Originally Posted by MCEcomp View Post
If your stuck with 11.5:1 comp something like a crane R-270/420-s6 would be a better choice
276/284 @.050" on a 106 lobe center with mid 600 lift for street

For race an agressive Comp or Crane (which is not in business now) so the one i like from Comp is this,,
HXL / RZ lobes

307/317 @.020"
278/284 @.050"
201/197 @.200"
.726"/.704" lift
106 lobe seperation, set the intake centerline @ 106 too

On 11.5:1 on pump gas you should be able to push 610hp,,

Go up to 13:1-14:1 and i would hope the engine would put out 650-680hp

You should run a Manley NexTek or Erson FSP 1.640" O.D springs on this assuming they will fit your rockers,,, If not PAC 1226
trmnatr is offline   Reply With Quote
Old 05-09-2009, 09:18 AM   #6
Aussie400
Senior Member
Smoked another BBC
 
Aussie400's Avatar
 
Join Date: Apr 2009
Location: BUTFUKNOWHERE
Posts: 1,371
Default Re: 406 SBC what solid roller cam suggestions

Thanks Guys
Aussie400 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -4. The time now is 09:35 PM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.
Resources saved on this page: MySQL 3.28%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Yellow Bullet LLC