Need help on some HEADS!

[Jaswir]

Going to be doing a head swap on this mustang i just got! These E6 suck bad!


I was goin with some GT40 heads but i was like why not go a lil better!


i saw some Pro Comps

heres the specs!

• 175 CC intake runners

• 60 CC combustion chambers

• Heads are assembled with new 2.02 Stainless Steel once piece Intake valves

• Heads are assembled with new 1.60 Stainless Steel once piece Exhaust valves

• All 16 bronze guides

• Heads are assembled with .600 valve spirings with hardened valve keepers

• Heads are assembled with screw in studs and guide plates

• Heads are assembled with new valve seals

• Heads are complete and ready to install
  
  
  I am looking for a Bolt on aluminum head! I will be running a E-cam or trickflow stage 1 cam!
  
  
  i want to stay under 800 bucks shipped to my door!
  

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[Darkwriter77]

Ummm ... what about valve-to-piston clearance? Those '86 motors came with flat-top pistons that (usually) don't have valve reliefs...

 

[BlownFiveLiter]

I'd say save a little longer and buy something else. You can find used, but perfectly good TFS/AFR heads usually for around $1000, sometimes less. With the 2.02 intake valve, you'll have to open up the valve reliefs on your pistons, which can be done with a die grinder, but would be better to use a piston notching tool, for consistency between pistons. Then, of course there's the fact that they've been out for a while, but are still a relative unknown. Someone on here had them, and IIRC, ditched them after some sort of issues (valvetrain related, I beleive).

Edit:

Ummm ... what about valve-to-piston clearance? Those '86 motors came with flat-top pistons that (usually) don't have valve reliefs...

Good catch. I didn't even think about it being an 86. You may need to cut reliefs for any head you choose.

 

[Jaswir]

see thats what i am worried about... don't know much about heads i have never done a swap...


so only way is take them off and see what would work?

 

[Darkwriter77]

I've heard it recommended to "clay" the pistons to check for clearance before you go slapping things together. Even stock E7's are a close fit with a stock HO cam and flat-top pistons.

 

[Jaswir]

i would def do the clay trick... just to make sure! i guess i will have to see!

 

[Strippt88]

Port a good set of E7's (Thumpers, $600 w cores), and buy an intake, too

 

[strtrcr50]

TFS heads will give you a fair amount of room with 87-93 pistons. Don't know about 86- though.

 

[Jaswir]

damn this sucks!

 

[KamiKaziDK]

You running a cam with a stock intake?? Putting a cam in is about the last thing I'd do if I were you, you're still speed density I'm assuming? You'll want to get a cam that's friendly to speed density. Might think about just finding some cleaned up gt40s and put 1.7 RRs on them, and then find a good deal on an aluminum intake, would cost you the same as getting just aluminum heads

 

[Jaswir]

i don't want irons... want something a lil better.. i don't care if they dont flow as good as AFR or trickflow...

dont matter anyway gt40 wont bolt up either... no matter what i do i have to notch the pistions

 

[Jaswir]

i was goin to do a intake at the same time