ok, gave up my hopes for a rebuild, how does this sound - 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 12-05-2003, 08:58 PM
Muscle car fan
 
Last photo:
Join Date: Mar 2003
Location: Manitoba, Canada
Posts: 864
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
ok, gave up my hopes for a rebuild, how does this sound

Money is tight, and so the rebuild has been put on hold, and cheap go fast parts are going to be used.

Here is the setup
74 Ford Gran Torino (approx 3700lbs with some gas)
351W with stock bottom end (approx 8:1 compression)
Edelbrock rpm air gap intake
Holley 670cfm Street Avenger
1" 4 hole carb spacer
removed egr

now what i'm planning on doing

stock heads milled 0.020 over fitted with comp cams valvetrain adjustment kit
summit cam (218/228 .471/.471 114lsa) 2,000 to 4,500
summit headers (1 5\8 in. pri, 3 in. coll)

Sound like an allright street motor?? anything i should add, or any suggestions?

i'm thinking about 275hp/350ft-lbs any other guesses?

    Advertisement
__________________
'74 Gran Torino Project
351W, c6 trans, 9"
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 12-05-2003, 11:29 PM
lluciano77's Avatar
Short changed on common sense
 
Last photo:
Join Date: Jun 2003
Location: california
Age: 37
Posts: 3,548
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I think you need more compression. It is better to go to the high side of the cam's recommended ratio. I would do a little work to the heads too. Unshroud the valves and open the exhaust ports a little. Other than that it sounds good.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 12-06-2003, 01:52 AM
RANGER_MIK's Avatar
drive it like ya stole it.
 
Join Date: Oct 2003
Location: West frankfort,Il
Age: 41
Posts: 36
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Hey !

What kind of exhaust?
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 12-06-2003, 10:47 AM
Muscle car fan
 
Last photo:
Join Date: Mar 2003
Location: Manitoba, Canada
Posts: 864
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Re: Hey !

Quote:
Originally posted by RANGER_MIK
What kind of exhaust?
2.5" or 3" dual with an h-pipe and some turbo mufflers (size depends on what i can find a local shop to do)

As i said that the rebuild will be on hold, how would you go about getting more compression lluciano?? or do you think i should try a smaller cam instead

I was thinking of steel shim head gaskets but not sure if the block is straight enough to use them. Are there any other good head gaskets that are real thin when compressed?
__________________
'74 Gran Torino Project
351W, c6 trans, 9"
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 12-06-2003, 05:24 PM
badknuckles's Avatar
you talkin to me?
 
Join Date: Nov 2003
Location: fort lewis, wa
Age: 33
Posts: 1,090
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
i would go with the smaller of the two you dont want your pipes too big cause the colder your exhaust is the slower it flows i would go 2.5
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 12-06-2003, 05:56 PM
Muscle car fan
 
Last photo:
Join Date: Mar 2003
Location: Manitoba, Canada
Posts: 864
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally posted by badknuckles
i would go with the smaller of the two you dont want your pipes too big cause the colder your exhaust is the slower it flows i would go 2.5
I'm pretty sure no shop around here has done any 3" pipes anyway, I just like the sound of 3 pipes over 2.5
__________________
'74 Gran Torino Project
351W, c6 trans, 9"
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 12-06-2003, 06:30 PM
badknuckles's Avatar
you talkin to me?
 
Join Date: Nov 2003
Location: fort lewis, wa
Age: 33
Posts: 1,090
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
sounds nice and its a good idea if you have a serious motor (over 300hp) but it sounds like your going mild so its probably better to go 2.5
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 12-06-2003, 07:05 PM
Muscle car fan
 
Last photo:
Join Date: Mar 2003
Location: Manitoba, Canada
Posts: 864
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally posted by badknuckles
sounds nice and its a good idea if you have a serious motor (over 300hp) but it sounds like your going mild so its probably better to go 2.5
going mild for now anyway, with a rebuild shooting for 400hp out of my 351 (possibly 393 since there isn't much difference in cost)

but that would be a couple years away (and i'd rather do exhaust once instead of twice)
__________________
'74 Gran Torino Project
351W, c6 trans, 9"
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 12-06-2003, 07:27 PM
lluciano77's Avatar
Short changed on common sense
 
Last photo:
Join Date: Jun 2003
Location: california
Age: 37
Posts: 3,548
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Re: Re: Hey !

Quote:
Originally posted by Dubz
2.5" or 3" dual with an h-pipe and some turbo mufflers (size depends on what i can find a local shop to do)

As i said that the rebuild will be on hold, how would you go about getting more compression lluciano?? or do you think i should try a smaller cam instead

I was thinking of steel shim head gaskets but not sure if the block is straight enough to use them. Are there any other good head gaskets that are real thin when compressed?
Run 2.5 exhausts. 3s will be too big. Maybe mill a little more off the heads and match the intake angle to raise compression. If you don't do that, that cam is already pretty small so don't get a smaller one.

Don't get steel shims. Get the thinnest steel core laminate one you can get. It might be the .039".
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 12-06-2003, 10:34 PM
Muscle car fan
 
Last photo:
Join Date: Mar 2003
Location: Manitoba, Canada
Posts: 864
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Re: Re: Re: Hey !

Quote:
Originally posted by lluciano77
Run 2.5 exhausts. 3s will be too big. Maybe mill a little more off the heads and match the intake angle to raise compression. If you don't do that, that cam is already pretty small so don't get a smaller one.

Don't get steel shims. Get the thinnest steel core laminate one you can get. It might be the .039".
how much would you suggest i mill?? wasn't wanting to take too much off so i wouldn't have to worry about piston to valve clearance
0.030" or more?
__________________
'74 Gran Torino Project
351W, c6 trans, 9"
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 12-07-2003, 12:06 PM
Muscle car fan
 
Last photo:
Join Date: Mar 2003
Location: Manitoba, Canada
Posts: 864
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
well according to my haynes manual 0.040" is the max you can mill on sbf heads, 0.020" is the amount you can mill before you need to mill the intake manifold as well

If I were to match the intake to the heads when i get new heads would i have problems with everything matching up?? Will be getting afr's later on down the line, and don't want to have to get another intake (more $$ i have to save)
__________________
'74 Gran Torino Project
351W, c6 trans, 9"
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



All times are GMT -6. The time now is 10:52 PM.


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.