INTAKE SWAP

kpack5982

Yeah, it was pretty stiff, but eventually a buddy
Jul 13, 2005
325
1
19
Granger, IA
Doing an intake swap to a used gt40 upper and ported lower, when I take off the fuel rails and injectors out, I know I have to buy an injector install kit. Now does this come for just one injector or do I have to buy 8 of these wonderful sets? Also, does anyone know where I could get upper intake bolts for the 1" spacer the intake is coming with? And last of all, when using a spacer that requires two gaskets, one between spacer and upper and one between spacer and lower, am I correct? Thanks in advance everyone, you guys are the source of all my mustang knowledge
 
Depending on the condition of your injectors, and the o-rings on them, you may or may not need to do anything in the way of an install kit. I'm assuming the install kit you're referring to is new o-rings and pintle caps?
 
Yea about every stang ive worked on or any car ive worked on i didnt need to change the o-rings or pintle caps except for once on mine...But one kit is for one injector, u can get them at NAPA if u need them for around 2 and change each, mine came to i think 28 bucks all together though. Ill give u the part number if u need it, I doubt u will need to though, but doesnt hurt
 
Yeah I took mine apart first then purchased how many I needed I only ended up needing 2 o-rings. Yes you will need a gasket between the spacer on both sides, I bought my longer bolts from a high performance store by where I live, You could also go to a good harware store and buy what you need for bolts, I used stainless hardware, and remember to use anti sieze on bolts that thread into aluminum.
 
Here's some tips...

Tools: a good torque wrench is a must have item. A razor blade scraper that holds a single edge razor blade from Home Depot or Ace hardware is another handy thing. Get a Chilton or Haynes shop manual - you'll need it for the bolt torques and patterns. The intake manifold has an especially odd pattern. You'll need access to a timing light to set the timing after you re-stab the distributor. Look in the A/C repair section for the fuel line tools. They look like little plastic top hats. You will need the 1/2" & 5/8" ones. The hat shaped section goes on facing the large part of the coupling. Then you press hard on the brim until it forces the sleeve into the coupling and releases the spring. You may need someone to pull on the line while you press on the coupling. Put some motor oil on them when you put the line back together.

The A/C Compressor comes off with lines still connected. Mark all the electrical, smog and vacuum lines with tags to help you remember where to re-connect them. If you have a digital camera, take several pictures.

Whatever you do, don't skimp on cleaning the gasket surfaces. New gaskets need to seat against bare metal and not the residue left from the old gaskets in order to seal leak free. This is the most time consuming and tiresome part of the job. Look for little things that need to be replaced like the short hose from the thermostat hosing to the water pump, damaged vacuum lines and hose clamps that are rusted or broken.

Plan on cutting the thermostat to water pump hose, or removing the thermostat housing. Also plan on removing the distributor to get clearance to remove the intake manifold. Remove #1 spark plug, stick your finger in the spark plug hole and crank. When your finger gets air moving past it, stop cranking. Turn the engine until the timing marks line up with the pointer. Now you can pull the distributor out.

My favorite trick that saves time and effort is the stay in place gasket. Be sure that you scrape (don't use a wire brush) all the old gasket material off, then clean all the surfaces with acetone or MEK.

When the surfaces are clean, use weather strip adhesive on the head to manifold surface, and on the side of the gasket that mates to the head. Follow the instructions on the tube or can and when it gets tacky, press the gasket down on the head.

Clean the area where the rubber rails mount to the block in front and in the rear with more acetone or MEK and do the same trick with the weather strip adhesive that you did to the heads.

Coat the rubber seals and the gasket area around the water passages with lots of Blue Silicone gasket sealer and put it together. Wala! no leaks, and no gaskets that shifted out of place.

Fuel injector seal kits with 2 O rings and a pintle cap (Borg-Warner P/N 274081) are available at Pep Boys auto parts. Cost is about $2.74 per kit. The pintle caps fit either injectors with a pin sticking out the injector end or 4 with more tiny holes in the injector end. The following are listed at the Borg-Warner site ( http://www.borg-warner.com ) as being resellers of Borg-Warner parts:

http://www.partsplus.com/ or http://www.autovalue.com/ or http://www.pepboys.com/ or http://www.federatedautoparts.com/

Most of the links above have store locators for find a store in your area.

Use motor oil on the O rings when you re-assemble them & everything will slide into place. The gasoline will wash away any excess oil that gets in the wrong places and it will burn up in the combustion chamber.

Consumable items:
Upper manifold gasket
Fel Pro 1250 or equal lower manifold gasket set.
Short formed hose between thermostat hosing and intake manifold
6 ft 7/64" or 1/8" vacuum hose
2 ft 1/2" heater hose
1 1/2 ft 5/8" heater hose
Blue Silicone sealer
ARP antiseize or equal for the bolts
4 each 3/4" hose clamps (spare item in case the old ones are bad)
4 each 1/2" hose clamps (spare item)
 
thanks for the info

Of all the info I've gotten so far, i think that was the most complete. A lot of places have good info, but not to the detail that you just gave it. That helps a lot, THANK YOU!!!!
 
You can also get some bolts that are longer than the stock ones and cut the heads off so you pretty much have long threaded studs. This way your manifold will drop straight down keeping your gaskets in place.