3500 intake swap and 75MM TB.

[asylummotorsports]

That is ALOT of TB for a 3500 but good luck with it.

As for the cold air intake...well, unless you can find positive air in driving conditions you may be wasting your money.

But that subject has pretty well been discussed here already.

And I think you really should have a PCV valve. It does help.

But looks good so far.

[95SleeperAcheiva]

Before you ask, no I haven't made the track yet. I hope to wed.

3500 intake, port and polished to gasket match. port and polished the tb neck too out to 75mm. I made the TB adapter myself and the transition from TB-adapter-intake is so smooth you can't catch your finger nail on it! Everything is polished to a 240 grit finish. Remember, my intakes will never see emissions or fuel, only air. BTW, the 1" drum sander on a drill ported this intake, @ TB neck, so fast with a 50 grit roll, it was scary. And the roll looked like it was untouched after use. Here I've been doing everything with a dremel/die-grinder and those little sanding rolls from summit. Good for detail work, nothing else.
The TB is 75mm/3.5". Its from a 1998 Oldsmobile Aurora 4.0L V-8. I had to twist it for bolts to line up right and then modify the throttle bracket inorder to clear my hood. It wasn't enough. I also had to modify the hood framing too with a BFH. It clears now...barely. I really need the solid mounts tho, when i stand on it I think it'll rub the hood still.
[EDIT] Oops forgot something. The vacuum ports. the one at 12 o'clock to the TB I found freeze plug to pound in there with some JB weld. The little port at 3o'clock to TB i had to dremel out to fit another freeze plug in there with some JB weld. The big port for the brake booster got a much smaller thread in barb nipple, and then the 2 vaccum line from there to the trans and the FPR. I also grabbed a MAP from the Aurora Motor too when in the junk yard and popped it in place. It seems to work fine. We'll see I geuss.

I painted red because everyone else does black, the ford blue i had just didn't seem to go right by me, and i can't afford gold plate so red it is, also i had 2 cans already n my garage. it was cheap.

On the bench pics, linkage and butterfly still out.




In the car.




I found a place get the pipes and couplers to run my cold air intake. It's going to cost me $125 for 2 3.5" dia. 45 degree pipes, 3 couplers, and 6 clamps. I'm broke, so for now she breaths hot.