Tirefryer

Finaly found a nice set of gt40 heads in the junk yard. My ? Is once i bolt them up what else do i do... Bolt up and play or do i have to find some one to remap it...what else would complement these heads that can be done by a backyard machanic...What cam... Keep in mind stock engine now....any info would be awsome.... Thanks

Brandon91

How many miles are on the stock block?
You want the cam to complement your gears.. Do you know what gears are In your car?

Tirefryer

3.73 gears thats was my first upgrade and that messed with all my gauges so im guessing 130,000 on the motor still runs strong. Oh and street car with once a year runn down the track.... We do a bragging rights drag at the airport once a year... Good times..

Brandon91

Nice. When you put gears In you have to buy a new speedo gear. It hooks to a cable In the transmission. Takes about 15 minuets. That will fix you speedometer if Thad what you were saying is messed up.

Tirefryer

I fixed the spedo by usein my gps even if i fixed spedo gear tires are not stock so its easyer to use gps to track speed

Brandon91

What year is your car?

Tirefryer

93 lx

Brandon91

Nice. Back to your question.. gt 40 or cobra upper and lower intake.. Would go nice. Maybe a 65 mm throttle body. With some good flowing exhaust would free up some power. Also when you start putting mods on your car a lot of people don't realize how much drag your the stock clutch fan creates. Through an electric fan on there as well.

Tirefryer

Exaust going on this weekend full flowmaster... Ill be going with bbk headers as well now that i found the gt40s. Will be trackin down a cobra intake as well... But can i put one thing on at a time without prob or should i gather up everything and put on all at once to avoid problems...full roller rocker as well. And what cam have not decided yet???????

Brandon91

You can do a little at a time. I'd do the heads and rockers at the same time. You want to try and match the cam and the rockers... If you a cam you should absolutely change the timing chain. If you have 3.73 gears ford racing cams are good high end cams.. You'll want that since your car wraps out fast.

93slowstang

Well the explorer intake is the same basic design as the cobra. If you are going to install a cam I would put new lifters in and change them when you do the heads. I run an e-cam in mine and it does fine. You also do not need to have it tuned, but it will help you get the most out of that combo.

dcpirani

Are they GT40 or GT40p? If they are gt40p you will need diffrent headers.

93slowstang

I have bbk headers on my p heads and they work just fine.

jsmith214

I was going to put some GT40 heads on my car with a cam and the mechanic said he would not even do it due to the amount of work to only gain few horsepower. He will not do any upgrade unless 50 an above. He told me to buy AFR 165 heads and they bolt straight on with a trick flow stage one cam and with the mods I already have would be over 100 horse added. Probably not at the wheels but that is what I am doing. Just my insight take it for what it Is worth for u.

Tirefryer

Gt40 are the heads didnt want to comlicate anything