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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-

Heads Or Supercharger.... This Is New.

  • Thread starter Thread starter Arkfoxvert
  • Start date Start date Feb 9, 2018
A

Arkfoxvert

New Member
Oct 19, 2017
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Feb 9, 2018
#1
  • Feb 9, 2018
  • #1
i know this has been discussed a million times.
I have a 87 gt vert that I’m building as a fun cruiser, mountain road, possibly autocross car.
I want to add a bit more power. It has shorty headers, h pipe and flows dumped. Smog delete.
I have an eddy intake and 70mm tb and egr waiting to go on.
I’m on a budget because it needs a new top and I just spent quite a bit on suspension.

Question is I found a set of nearly new gt40x Heads 64cc for about $600.
I want to leave the car speed density for now so should I grab these heads, and some 1.7 rockers?
Or spend the money on a vortech v3 sci and run the fmu?

Thanks.
 
A

Arkfoxvert

New Member
Oct 19, 2017
3
0
1
Feb 9, 2018
#2
  • Feb 9, 2018
  • #2
To clarify, I probably don’t have the time or skill to do the heads. So that means labor cost.
I’m pretty confident I could bolt on the blower.

Thanks!
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
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Feb 9, 2018
#3
  • Feb 9, 2018
  • #3
Pretty much answered your own question
 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
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Feb 9, 2018
#4
  • Feb 9, 2018
  • #4
You're going have to have some way to monitor your own AFR or have the car tuned to ensure it gets enough fuel.

Not all 19 lb injectors are up to the task of 80+ psi. Neither are fuel pumps and alternators for that matter.
 

mikestang63

SN Certified Technician
Aug 27, 2012
11,606
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In the garage
Feb 9, 2018
#5
  • Feb 9, 2018
  • #5
go with the blower and get a SD friendly tune.
 

2000xp8

SN Certified Technician
Aug 8, 2003
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NJ
Feb 9, 2018
#6
  • Feb 9, 2018
  • #6
Naturally aspirated almost always works better for corner carving.
It's one thing to drive a supercharged pushrod engine hard here and there randomly.
It's an entirely different thing to beat the hell out of for miles at a time, I could only imagine how much trouble it would cause.
How many miles are on this engine?
If you don't feel you could install the heads, then you can't fix a head gasket...
 
Reactions: Noobz347

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
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#7
  • Feb 9, 2018
  • #7
...or a main seal.
 

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
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Feb 9, 2018
#8
  • Feb 9, 2018
  • #8
You are gonna spend a lot of money for labor, if you can install a supercharger, you can change heads, it would be worthwhile to learn.
 

85ragtop

BTW, I like dudes.
10 Year Member
Nov 29, 1999
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Feb 9, 2018
#9
  • Feb 9, 2018
  • #9
Putting a set of heads on isn't that difficult, as long as you take your time and pay attention. I learned that the hard way many years ago. Something's it's just better to take your time with.
 

a91what

SendMeUrDataLog
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Apr 6, 2011
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Feb 10, 2018
#10
  • Feb 10, 2018
  • #10
Doing the head swap will be as difficult as your organization skills make it. Use painters tape and a marker to label each electrical connector as you unplug them so you know where they go back to, do the same for the vacuum lines. Buy zip lock bags and as you remove bolts and the like mark them as well this way all the valve cover bolts are in one bag clearly labeled (valve cover) ect... taking these steps will ensure a smooth reassembly. For all other tech related questions like 'what do I use to get the old gasket off the block' 'what do I torque this to' we are here to help.

Alternatively you could grab a service manual, it will outline the step you need to take and has the recommended torque values.


I am a fan of boost myself I don't see why 6psi would affect the engine much over long durations, the centri style blowers are efficient and produce low intake air temps.
 
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