427 SBC or 496 BBC - Team Camaro Tech
Engine General Engine Discussion.

 1Likes
  • 1 Post By Larger Dave
 
LinkBack Thread Tools Display Modes
post #1 of 12 (permalink) Old Jan 11th, 19, 06:26 PM Thread Starter
Senior Tech
 
Join Date: Apr 2001
Location: Castle Rock, CO, USA
Posts: 820
427 SBC or 496 BBC

Looking to make a change from my 388. I have been looking at a 427 sbc making about 652 hp or a 496 bbc making about 600 hp. Both about the same price. I know there will be some expense moving to the bbc but not too worried about that.

I'm torn on which way to go. The car is 90% street driven and want something different than my 388.

What would you do? Just looking for fun street car that is fast and turns heads.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


67 Camaro with 388 with Edleborck RPM heads, Air Gap, CC 282S, Tremec TKO
LukeSkywalker is offline  
Sponsored Links
Advertisement
 
post #2 of 12 (permalink) Old Jan 11th, 19, 07:03 PM
Senior Tech
Dave
 
Join Date: Dec 2005
Location: Tampa, Florida
Posts: 4,586
Re: 427 SBC or 496 BBC

Horsepower is wonderful if you are driving around the high bank of Dayton. On the street the 496 will make more torque which is what accelerates you. And this is one example of where the BBC may be cheaper to put together than the SBC.

https://www.speedwaymotors.com/BlueP...0aAlRVEALw_wcB

https://www.jegs.com/i/Blueprint-Eng...8aAjJVEALw_wcB

That said despite your willingness to swap from a small block over to a Huge block that will add to the costs and force changes over what you have now. I don't think a 496 is worth the investment in time, effort, and cash over a stout 427 SBC.

Big Dave
pittpens24 likes this.
Larger Dave is offline  
post #3 of 12 (permalink) Old Jan 12th, 19, 03:56 AM
Senior Tech
Travis
 
Join Date: Oct 2017
Location: Wyoming
Posts: 264
I went the 427 small block route and have no regrets. 535hp and 590tq. At 10:1 it runs great on pump gas and with 3:55s and a tko I get 20mpg cruising down the highway at 70.
Way different mileage when I'm beating on it
The only thing thats annoying is the people that say "you know thats a small block" when the hood is open.
Should have put 307 badging on it.
travisch is offline  
 
post #4 of 12 (permalink) Old Jan 12th, 19, 04:25 AM
Gold Lifetime Member
Greg
 
pittpens24's Avatar
 
Join Date: Jul 2015
Location: New Jersey
Posts: 1,735
Garage
Re: 427 SBC or 496 BBC

I agree with Larger Dave. I went from a SBC to a BBC. What you have works and that is a huge plus right out of the gate. only thing you may want to look into upgrading is your radiator if your higher HP rating calls for it. Going BBC - you have no choice in the matter. Add to that a new pulley system, motor mounts, frame mounts, headers, manifold, carb, linkage, proper clutch bellcrank and linkage or hydraulic clutch set-up if going manual, bellhousing, starter, flywheel and dual disc clutch or flexplate, and driveshaft just off the top of my head. Parts add up quickly! And one last thing, you are already used to that high revving SBC, big blocks are all torque so it is a different feel and power. You will easily loose 1000 rpms on a built BBC from what you are already used to.
Although it was cheaper for me to build a stout 572 than a stout 427 - I lost on the other end where I had to literally replace everything including the trans and rear.

'68 Camaro with RS conversion
Moser 9" with 4:11
Martz Chassis 4-link and Front Sub-frame
Tremec T-56 Magnum 6 speed
572 BB - CM Engines
Wilwood 6 piston front and 4 piston rear disc
pittpens24 is offline  
post #5 of 12 (permalink) Old Jan 12th, 19, 02:54 PM Thread Starter
Senior Tech
 
Join Date: Apr 2001
Location: Castle Rock, CO, USA
Posts: 820
Re: 427 SBC or 496 BBC

Looks like 427 will be the way I go eventually. Going to get the suspension straightened out first and change the solid cam in my 388 to a Straub roller. I think that will get me the improvements I am looking for right now.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


67 Camaro with 388 with Edleborck RPM heads, Air Gap, CC 282S, Tremec TKO
LukeSkywalker is offline  
post #6 of 12 (permalink) Old Jan 12th, 19, 03:41 PM
Gold Lifetime Member
Steve
 
Steve69SS396's Avatar
 
Join Date: Nov 2005
Location: Modesto, CA
Posts: 2,366
Garage
Re: 427 SBC or 496 BBC

I went to a 427SBC 5 years ago and have been extremely happy. Bigblock power in a smaller lighter package.
Attached Thumbnails
Click image for larger version

Name:	427.jpg
Views:	61
Size:	104.7 KB
ID:	223955  

'69 Camaro - 429 SBC Dart Iron Eagle 9.325" block, Crower crank, Crower 6" billet rods, Ross pistons (10:1), Total Seal rings, AFR 245 heads, T&D steel body shaft rockers, Cloyes Timing set, custom ground 4-7 swap solid roller 274/286 @ .050" with .704" lift, Dart single plane, Holley Dominator EFI on E85, Injector Dynamics ID2000 Injectors, Stef's #1705R oil pan, F2 Procharger, Lemons 2" primary 4" collector, ATI 9" blower converter
Steve69SS396 is offline  
post #7 of 12 (permalink) Old Jan 13th, 19, 06:42 AM
Gold Lifetime Member
Brett
 
Join Date: Mar 2016
Location: Austin, Texas
Posts: 932
Garage
Re: 427 SBC or 496 BBC

Quote:
Originally Posted by Steve69SS396 View Post
I went to a 427SBC 5 years ago and have been extremely happy. Bigblock power in a smaller lighter package.
Steve, what is that pump on the left? Looks like a crank case purge? Surely that's not the Procharger that's in your sig. And I don't see an alternator?

As far as the OP, I think like the others, you would be happy staying with the SB...

Brett.....

1969 SS 396 X66 - RS Conversion - TKO600 - 3.73 Posi - Paint Code 71-LeMans Blue

Last edited by Brettallen59; Jan 13th, 19 at 06:43 AM. Reason: typo
Brettallen59 is online now  
post #8 of 12 (permalink) Old Jan 13th, 19, 08:02 AM
Gold Lifetime Member
Steve
 
Steve69SS396's Avatar
 
Join Date: Nov 2005
Location: Modesto, CA
Posts: 2,366
Garage
Re: 427 SBC or 496 BBC

Quote:
Originally Posted by Brettallen59 View Post
Steve, what is that pump on the left? Looks like a crank case purge? Surely that's not the Procharger that's in your sig. And I don't see an alternator?

As far as the OP, I think like the others, you would be happy staying with the SB...

Brett.....
Brett - That picture was before the Procharger. That is a vacuum pump on the left and the alternator is low on the right. Here's a picture with the Procharger.
Attached Thumbnails
Click image for larger version

Name:	IMG_E0167.jpg
Views:	56
Size:	402.3 KB
ID:	223989  

'69 Camaro - 429 SBC Dart Iron Eagle 9.325" block, Crower crank, Crower 6" billet rods, Ross pistons (10:1), Total Seal rings, AFR 245 heads, T&D steel body shaft rockers, Cloyes Timing set, custom ground 4-7 swap solid roller 274/286 @ .050" with .704" lift, Dart single plane, Holley Dominator EFI on E85, Injector Dynamics ID2000 Injectors, Stef's #1705R oil pan, F2 Procharger, Lemons 2" primary 4" collector, ATI 9" blower converter
Steve69SS396 is offline  
post #9 of 12 (permalink) Old Jan 13th, 19, 10:38 AM
Gold Lifetime Member
Brett
 
Join Date: Mar 2016
Location: Austin, Texas
Posts: 932
Garage
Re: 427 SBC or 496 BBC

Quote:
Originally Posted by Steve69SS396 View Post
Brett - That picture was before the Procharger. That is a vacuum pump on the left and the alternator is low on the right. Here's a picture with the Procharger.
MMMMM...Nice Pic!

Brett.....

1969 SS 396 X66 - RS Conversion - TKO600 - 3.73 Posi - Paint Code 71-LeMans Blue
Brettallen59 is online now  
post #10 of 12 (permalink) Old Jan 13th, 19, 05:54 PM
Senior Tech
1Slow64
 
Join Date: Jun 2016
Location: Florida
Posts: 121
Re: 427 SBC or 496 BBC

496 is going to make more power easier than a sbc and less wear on internal components.

My 69 X66 project.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
69X66 is offline  
post #11 of 12 (permalink) Old Jan 13th, 19, 09:13 PM
Gold Lifetime Member
Steve
 
Steve69SS396's Avatar
 
Join Date: Nov 2005
Location: Modesto, CA
Posts: 2,366
Garage
Re: 427 SBC or 496 BBC

Quote:
Originally Posted by 69X66 View Post
496 is going to make more power easier than a sbc and less wear on internal components.
N/A a larger engine like a 496 can make more power and torque than a 427SBC. It's all about displacement. Disagree on the wear piece. My engine currently makes about 1,000 at the flywheel. When it gets an intercooler I'll turn it up a little and make 1,300+. I've been driving the heck out of it on the street. Every 3-4 months I change the oil and cut the filter open. There has been no unusual wear. I plan on running my car in drag week in the next couple of years. You drive the car about 1,000 miles over 5 days and race it each day.

Here is a car that has been running drag week for several years with a turbo charged old school small block. It broke into the 7's this year.


'69 Camaro - 429 SBC Dart Iron Eagle 9.325" block, Crower crank, Crower 6" billet rods, Ross pistons (10:1), Total Seal rings, AFR 245 heads, T&D steel body shaft rockers, Cloyes Timing set, custom ground 4-7 swap solid roller 274/286 @ .050" with .704" lift, Dart single plane, Holley Dominator EFI on E85, Injector Dynamics ID2000 Injectors, Stef's #1705R oil pan, F2 Procharger, Lemons 2" primary 4" collector, ATI 9" blower converter
Steve69SS396 is offline  
post #12 of 12 (permalink) Old Jan 19th, 19, 02:42 PM
Gold Lifetime Member
Scott
 
scott67ss396's Avatar
 
Join Date: Jan 2001
Location: Lake Stevens
Posts: 224
Garage
Re: 427 SBC or 496 BBC

BBC all day I have a Blue print 496 love it, put the 396 in storage

1967 SS (496) BBC FiTech EFI
1972 454 Fitech EFI (Baldwin motion clone)
1978 Trans am Gold SE W72 (461)
scott67ss396 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome