HERES THE DEAL!! GT40's

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03-17-2007, 04:30 PM

#21

BlackBetty93GT

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Join Date: Nov 2006

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RE: HERES THE DEAL!! GT40's

well after i but them i wont have any money left, so im gonna jsut gonna put them on like they are for now

03-17-2007, 05:38 PM

#22

my77stang

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Join Date: Dec 2006

Location: Citrus County, FL

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RE: HERES THE DEAL!! GT40's

adder wouldnt that .025 being milled off be enough the throw off the lifter plunge since the rockers are non adjustable? i mean, as long as its not bottomed out your ok but you gotta have some plunge left

03-17-2007, 05:50 PM

#23

CrazyCobraSpeed

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RE: HERES THE DEAL!! GT40's

Quote:

ORIGINAL: BlackBetty93GT

well after i but them i wont have any money left, so im gonna jsut gonna put them on like they are for now

i understand limitation on cash... but if u have a semi-steady income... were u could put bak 50-100 bucks a week then wait a few weeks and get the ported b4 u put them on.... ull thank me if u do... ull noticed a big difference just move up to gt-40 but if u get a lil valve work and a basic porting they will scream.... and it woudlnt be worth taking them off after they were already on to port them unless u were also doing other work... but even then it would be xtra work

03-17-2007, 05:56 PM

#24

AdderMk2

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RE: HERES THE DEAL!! GT40's

Quote:

ORIGINAL: my77stang

adder wouldnt that .025 being milled off be enough the throw off the lifter plunge since the rockers are non adjustable? i mean, as long as its not bottomed out your ok but you gotta have some plunge left

explorer gt-40's had a thicker deck surface then Cobra GT-40's

they run a 66-67cc chamber where the cobras run 64cc... so you should ATLEAST mill the heads to have a matching combustion chamber size...

and black betty.... your going to learn the hard way... Like I did... that putting heads on without having them tested.... is a waste of time and money.

As my father says: "If there was time and money to do it twice, There was time and money to do it right... the first time!"

03-17-2007, 07:46 PM

#25

BlackBetty93GT

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RE: HERES THE DEAL!! GT40's

ok, well how much does getting them tested cost?
and what do you do take it to a shop and ask to get them tested?

i dont have a job, i just have some birthday money

03-17-2007, 07:56 PM

#26

VigCS

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Join Date: Jun 2005

Location: Frederick, Maryland.

Posts: 2,118

RE: HERES THE DEAL!! GT40's

Quote:

ORIGINAL: BlackBetty93GT

ok, well how much does getting them tested cost?
and what do you do take it to a shop and ask to get them tested?

i dont have a job, i just have some birthday money

Not much...cleaned, milled, and checked out...maybe $150?

03-17-2007, 08:06 PM

#27

BlackBetty93GT

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Join Date: Nov 2006

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RE: HERES THE DEAL!! GT40's

hmm ill see if my dad will pay for it...haha

so when i get them, should i just get them checked out and put them on untill i can save up $1000 and send them to thumper

03-17-2007, 08:09 PM

#28

ZachW04Stang

5th Gear Member

Join Date: Jul 2004

Location: Westminster, MD

Posts: 4,343

RE: HERES THE DEAL!! GT40's

The iron gt40s aren't worth getting ported in if you think about it. You can get an aluminum head that will out flow them for less then it would cost to buy the used heads and port them. I would get them checked out and shaved down to make sure the deck surface is flat then through them on.