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Old 11-04-2012, 12:43 PM   #1
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Gt40

I have gt40 upper and lower intake gt40p heads and 1.6 roller rocker arms I haven't installed them yet cuz I'm not real sure what valve springs or cam to run or what I'm gonna do with the heads yet this is my 1st project so I'm just trying to learn the ropes right now
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Old 11-04-2012, 10:18 PM   #2
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I just finished my car a couple days ago gt 40 long block with gt40p heads ported and polished e303 cam and trick flow upper and lower intake 75 mm throtlle body bhavnt realy got on it gotta break in first but it sounds great the e cam has a nice lope to it.

---------- Post added at 11:18 PM ---------- Previous post was at 11:17 PM ----------

Im also gonna b adding a blower they say the e cam is good for nitrouse or blower application
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Old 11-04-2012, 11:00 PM   #3
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Do you have to use "special" headers with gt40p? I'm deterred by this and goin straight for TFS top end because I have $1,000 in my exhaust already. What about gt40? I already have a 93 Cobra upper and lower sittin in the garage... Not tryin to invade your thread, and any help is appreciated!
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Old 11-04-2012, 11:55 PM   #4
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Ya there is 4 dif ones that work cant recall with right now there a spot in the stickies section in isefull info that tells u witch will work. I have the bbk shortys

---------- Post added at 12:55 AM ---------- Previous post was at 12:53 AM ----------

I want the trick flow heads to but wasnt in budget right now eventualy i am planing on upgradeing to them
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Old 11-05-2012, 04:25 AM   #5
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Quote:
Originally Posted by 91notchback
Do you have to use "special" headers with gt40p? I'm deterred by this and goin straight for TFS top end because I have $1,000 in my exhaust already. What about gt40? I already have a 93 Cobra upper and lower sittin in the garage... Not tryin to invade your thread, and any help is appreciated!
You don't have to use the P specific headers but they make life a whole lot easier. I'm using BBK shorties with mine and have to unbolt the driver side header to change the #7 spark plug. Standard GT40 heads would work without a problem.
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Old 11-05-2012, 08:57 AM   #6
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Ya # 7 is a pain n the butt i put headers on first and then found that out. Lame
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Old 11-05-2012, 11:05 AM   #7
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Yeah I was thinking about the e303 cam it's supposed to give it pretty good HP too any idea on what lifters to use I'm tryin to get off as cheap as I can but still have durability
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Old 11-05-2012, 12:12 PM   #8
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Quote:
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Yeah I was thinking about the e303 cam it's supposed to give it pretty good HP too any idea on what lifters to use I'm tryin to get off as cheap as I can but still have durability
I installed new ford racing roller lifters when I did my swap. Used the stock pushrods and factory rockers.
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Old 11-05-2012, 12:57 PM   #9
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This might be a dumb question but could I use stock push rods with 1.6 roller rockers and duel valve springs? I'm just worried about all my parts meshing together right when I put it all back together
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Old 11-05-2012, 01:00 PM   #10
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Quote:
Originally Posted by Mustang52
This might be a dumb question but could I use stock push rods with 1.6 roller rockers and duel valve springs? I'm just worried about all my parts meshing together right when I put it all back together
If they are the right length you possibly could. You will need a pushrod length checker to determine what length you would need.
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