Gt 40 intake?

Pale Horse · Mar 14, 2011

I have seen a few for sale for around 125 or so should I buy one? Plan on putting it on my 347 until I can afford a TFR or Edellbrock,possible Holley. Also what size injectors and MAF should I use? Stock fuel rails or no?

auto_x5.0 · Mar 14, 2011

A GT40 will maybe hold you back on a GT40, but its better than stock. You can try and find a 94-95 Cobra intake so that it has the elbow already. As for injectors, I would say at least #36 to be safe, and a 76mm c&l mass air meter, stock fuel rails are fine until you have extra money after the intake.

BlkoutGT · Mar 15, 2011

For 125, I'd bet its a explorer GT40 intake. For a 347 I would just save up to pick up a better intake. You spent all that money on the short block, why skimp out now.

Venom351R · Mar 15, 2011

Dont put that explorer intake on a 347. Look around for used intakes for sale on here, corral, craigs list exc exc.. Dont buy/build a 347 then put junk parts on it

auto_x5.0 · Mar 15, 2011

I have a cobra intake for sale if you want it lol

RIFTER11 · Mar 15, 2011

I agree, stock fuel rails are prob ok, #24 or #36 injectors and 75mm MAF or bigger. TB should be at least a 70mm. If you haven't done so already, I would upgrade the FP to a 255lph along with an adj FP reg. As for the intake, the GT40P and Cobra intakes are basically the same, so I would wait and get an RPM 2 or a TFS track heat ... something that will make good power up to 6500RPM. Speaking of which, what cam are you running???

Pale Horse · Mar 15, 2011

Not sure yet waiting to see if the cam I have will match with the heads I bought that were assembled. I haven't heard back from my guy at the machine shop. I having the bottom end overhauled right now. Thanks for the replies and will stay away from so called gt40/explorer intakes.

Pale Horse · Mar 19, 2011

Bought a Edelbrock performer!

auto_x5.0 · Mar 19, 2011

good choice bud, is that the run with the short runners or is it the one the Pro Products intake is based on?

Venom351R · Mar 19, 2011

Great choice!

LAFENATU · Mar 24, 2011

Pale Horse said:
Bought a Edelbrock performer!

Still too small for a 347 but def better than the Exploder manifold.

wannaboost94gt · Mar 25, 2011

Look at my setup, I use the GT-40 on my 347. I plan on upgrading later but I already had the intake from my previous motor. I will eventually get the RPM II maybe sooner than later, I've just been so busy workin the kinks out but all is well now. I plan on takin it to SIR this summer to see what she runs with the GT40 before I switch it out. To be honest its not too bad for now...