Chevy 454, What to do? - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 01-23-2007, 09:41 PM
Registered User
 
Join Date: Jan 2007
Location: Salem
Posts: 10
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Chevy 454, What to do?

I'm getting a free running Chevy 454 and want to build a cheap 1/4 mile car or truck. What would you do with this engine? I'm thinking new rings, bearings, and oiling system and intake. Does anyone have a 454 and a timeslip time to share.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 01-23-2007, 09:48 PM
Bumpstick's Avatar
Hammer and a torch
 
Last photo:
Join Date: May 2003
Location: Southeast TX
Age: 53
Posts: 1,258
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Just depends on how deep your pockets are...

Also as to whats already in the 454...?
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 01-23-2007, 09:57 PM
Registered User
 
Join Date: Jan 2007
Location: Salem
Posts: 10
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I will let you know when I pick it up. But it's running so I plan on running it after a MILD build. I don't want to put more than $350 in parts in it. And I want to run it right away because of a small budget with new rings and then make changes. It will be a dragstrip only car.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 01-24-2007, 06:59 AM
firestone's Avatar
http://teamrfc.gospelcom.net
 
Last photo:
Join Date: Nov 2003
Location: Fenton MI
Age: 32
Posts: 1,743
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
The casting numbers on the heads will have a lot to do with how much power is possible.

Adam
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 01-24-2007, 07:46 AM
Member
 
Last photo:
Join Date: Dec 2004
Location: San Antonio, Texas
Age: 50
Posts: 4,021
Wiki Edits: 0

Thanks: 0
Thanked 23 Times in 23 Posts
Most likely a very low compression engine (7.5:1 cr) with the stock pistons and heads. In order to run a long duration cam, the compression will need to be raised a lot. If you have 781 or 049 heads (123cc) then swapping them for some 112cc semi-open heads (820's) would help get the compression up to 8.0:1. You should be able to run a moderate cam with 8:1cr, like 210 to 220 degrees duration at 0.050". 220 degrees isn't a drag racing cam but it is much better than stock . Otherwise, you will need some new domed pistons.

For a drag only engine, you should try to make about 10.5:1 cr and use a cam with about 240 to 250 degrees duration at 0.050". Of course this will also require stronger springs, push rods, and rocker arms. BBC's eat cams so makes sure to use diesel engine oil for more protection. Better rod bolts will also be a good idea.

Then you will need a better intake, carb, and a set of headers. Then you will need a high stall converter if it is an automatic transmission and lower gears with a LSD center section if you plan to get any traction at all. So, it looks like you will need to multiply your budget by at least ten times to get it going.

Another option would be to spray a 300 hp shot of n20 on that engine in it's current configuration. That could get you some pretty good times at the strip for about 350.00.

FYI, you could find some cheap BBC racing parts (intakes, carbs, headers, ect) at your local swap meet.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 01-24-2007, 07:54 AM
killerformula's Avatar
Hotrodders.com Moderator
 
Last wiki edit: Carburetor
Last journal entry: Clean up
Last photo:
Join Date: Oct 2003
Location: Northeast
Age: 33
Posts: 3,485
Wiki Edits: 3

Thanks: 13
Thanked 27 Times in 18 Posts
What about putting a mild street cam in his motor and milling the heads down to get about 9.0:1 out of it? Maybe something like an XE274?

K
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 01-24-2007, 03:12 PM
xntrik's Avatar
Save a horse, Ride a Cowboy.
 
Last photo:
Join Date: Jul 2005
Location: Arkansas
Posts: 5,131
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Quote:
Originally Posted by JPEGEngines
I'm getting a free running Chevy 454 and want to build a cheap 1/4 mile car or truck. What would you do with this engine? I'm thinking new rings, bearings, and oiling system and intake. Does anyone have a 454 and a timeslip time to share.
You need to find out exactly what you have, heads, block, etc. Which deck height block is it?

You can easily go anywhere from 300 hp to 800 hp, how much $$$$$$$$ is in those pockets????????

Cheap and BIG BLOCK don't fit together. Consider what you have and what you want.

If you start hopping up a truck engine, figure $ 15 per total horsepower until you get up there a ways, then $ 20 per total horsepower.

If you figure hop up stuff only ... figure $ 35 per horsepower added.
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 01-24-2007, 03:20 PM
xntrik's Avatar
Save a horse, Ride a Cowboy.
 
Last photo:
Join Date: Jul 2005
Location: Arkansas
Posts: 5,131
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Quote:
Originally Posted by killerformula
What about putting a mild street cam in his motor and milling the heads down to get about 9.0:1 out of it? Maybe something like an XE274?

K
If its a real low compression engine you can't get 9/1 by milling.

Even if you could, what you are suggesting will cost $1000.
Milling the compression surface, milling the intake surface, notching the pistons, correcting the valve train geometry, special pushrods, etc. Then the headers might not fit.

He should bore it and go good pistons.

But all we are doing now is speculating about a hypothetical situation.
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 01-24-2007, 03:27 PM
runn141's Avatar
SB S10
 
Last photo:
Join Date: Sep 2006
Location:
Posts: 1,252
Wiki Edits: 0

Thanks: 17
Thanked 13 Times in 13 Posts
if compression is that low, supercharge it?
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 01-24-2007, 04:33 PM
DeathRattle's Avatar
Some Punk Kid
 
Last photo:
Join Date: Oct 2006
Location: Michigan
Age: 27
Posts: 787
Wiki Edits: 0

Thanks: 0
Thanked 2 Times in 2 Posts
He says he only wants to spend $350. Which elimantes every thing you could possibly do besides basic rebuild and maybe wax the fan blades.
350 is not a realistic budget for a drag only car. To be completely honest.
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 01-24-2007, 08:30 PM
Registered User
 
Join Date: Jan 2007
Location: Salem
Posts: 10
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Hey thanks for all of the advice. I dont want to spend alot right up front. But I want to build a solid short block, then move on from there. Does anyone have any information on the $310 kit from Powerhouse? What is it's compression? The engine is in a 1985 3/4ton pickup. I will give numbers when I pick it up.
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 01-24-2007, 08:43 PM
Registered User
 
Join Date: Jan 2007
Location: Salem
Posts: 10
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
What can I do to improve it because it only has 230HP! HELP!
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 01-24-2007, 08:46 PM
poncho62's Avatar
Out of the Loop Moderator
 
Last wiki edit: Streetbeasts links
Last journal entry: at car show
Last photo:
Join Date: Oct 2003
Location: Hanover, Ontario, Canada
Age: 61
Posts: 16,777
Wiki Edits: 5

Thanks: 19
Thanked 228 Times in 188 Posts
You are gonna need better heads..........................gotta breathe better.
__________________
Ontario Rodders
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 01-24-2007, 08:48 PM
Registered User
 
Join Date: Jan 2007
Location: Salem
Posts: 10
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
What casting numbers are the good ones?
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 01-24-2007, 09:06 PM
Registered User
 
Join Date: Jan 2007
Location: Salem
Posts: 10
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
They are 336781 I think. Or thats what the internet says.
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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 for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Chevy 454 Sensors flyfishingpage Engine 1 02-03-2012 06:58 PM
454 chevy in 79 trans am, possible? Trans Am Benny Engine 9 12-31-2011 11:06 AM
Chevy 454 overheating no matter what I do rakundig Engine 26 02-13-2011 04:03 PM
Chevy 454 PCV and Vacuum question rakundig Engine 7 10-29-2003 08:33 PM
Chevy 454 to 489 Question Project 64 Engine 3 11-05-2002 03:58 PM


All times are GMT -6. The time now is 05:51 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.