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GT40P and FelPro 1250

  • Thread starter Thread starter nito88stang
  • Start date Start date Jan 21, 2004

nito88stang

Founding Member
May 23, 2002
2,012
0
46
Fullerton, California
Jan 21, 2004
#1
  • Jan 21, 2004
  • #1
I bought my P heads and supposedly they were stock and only rebuilt. Well I got my P heads CC'd and they are 55cc in all chambers. So they were milled. NOw that I matched them to the felpro 1250's they match them perfectly.

P Heads With FelPro 1250


Typhoon against 1250


Typhoon closer


My question is, does it look like they were ported or do P heads normally fit this gasket so closely? I also included a pic of the gasket matching to the Typhoon intake i will be using. Will i gain much if i port match or is it ok if i leave the intake a little smaller than the head (since i'm so damn lazy )?

Thx
 

nito88stang

Founding Member
May 23, 2002
2,012
0
46
Fullerton, California
Jan 22, 2004
#2
  • Jan 22, 2004
  • #2
ttt
 

nito88stang

Founding Member
May 23, 2002
2,012
0
46
Fullerton, California
Jan 22, 2004
#3
  • Jan 22, 2004
  • #3
ttt
 

SwAmPf0x

Founding Member
Dec 29, 2001
1,423
0
37
Hell Hole Swamp
Jan 22, 2004
#4
  • Jan 22, 2004
  • #4
Mine matched the 1250 on the top and 2 sides but not quite at the bottom, looks like your splitting the difference in the pic, you should be able to tell if someone gasket matched, you probably have the stock size ports
 

Jozey

New Member
Nov 11, 2003
127
0
0
Tucson,AZ
Jan 22, 2004
#5
  • Jan 22, 2004
  • #5
I also have a set gt40-p heads and when i got them they were not ported and were almost to the 1250 gasket.I did alittle touch up on the ports but haven't driven the car yet.
 
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