Edelbrock STR14-6 installation or...

[joerg]

...how complicated a simple intake change can get. :toothy9:
I bought a nice Edelbrock STR14-6 Crossram intake a while ago and since the season is over here and the weather sucks now i took the old intake off the engine today with the intention to install this:

The overall height including, the aircleaner assembly, with the Edelbrock Six Pack intake is 28cm. The complete assembly with the STR14-6 is 33,5cm. Sure doesn´t fit under the OEM hood.
That´s why i testfitted this:

I still have the old hood that came with the car when i bought it, so i don´t need to cut the nice one. Will pick it up tomorrow at my parents house and see how it will work out.
At least i managed to testfit the base without any problems today :icon_cool:

 

[Budnicks]

I had a STR 14-6 intake on a 440 in my old 69 RR many years ago now it fit under the stock 69 N96 hood, I don't remember what air cleaner I used, it was in the 1980's, but the intake & carbs fit, that was a fun intake torquey as hell, noisy as hell when the secondaries open... easy to convert to a single 4bbl or dual 4bbl also, I tried them all at one point or another, there were some mods that had to be done, so the rear plugs didn't get fuel fouled all the time, it was a small 1/4" aluminum dam across the 2 rear ports in the box portion of the manifold, welded in place, to stop fuel from just draining down the back 2 ports under hard acceleration or at even just slow &/or constant cruising speeds, or some guys would even epoxy something in those areas instead... If I could have found a STR 15-6 {for less than a small Ransom}, for my Low Deck stroker build instead of the MP 6bbl low deck manifold, I would have used it, I have tons of hood clearance with the A-12 hood I have, on my current 68 RR project for sure, the cheapest one {STR 15-6} I could find was like $1500 for just the manifold & the one 6bbl top, so I passed on it & went with the MP 6bbl unit instead... That thing looks very cool, that's for damn sure, good luck, keep us posted...

 

[joerg]

I picked up my old hood during the weekend and started to work on it. There was lots of bondo on it and it got a lot lighter when everything was removed.

I also discovered that my 6 pack aircleaner isn´t sitting centered in my engine bay. For some here a well known fact but new to me. I decided to not just cut the aircleaners space requirement out of the hood but all the metal in the section where the scoop will be mounted at.

 

[Budnicks]

Looks good, keep us posted...

 

[joerg]

Another problem is the top lid. The carbs a mountend on an angle, which is compensating for the angle the engine is sitting in it´s bay.
I would have to modify my aircleaner base to make it fit. But since the linkage of the carbs won´t have enough space to move anyways i prefer to just modify the intake lid it´self with a milling machine and get rid of the carburators mounting angles and also cut a channel into the stiffening piece.

 

[Budnicks]

If I remember correctly, I used 1/4" or 1/2" heat insulator type thick Holley gaskets, under the carbs & had enough clearances for the carb linkages, I don't remember what air cleaner I used, it was a long time ago... There is a company F&B Throttle Bodies @ www.fbthrottlebodies.com , that makes a set of spacer/adapters to fit on top of their EFI 6bbl set up, to use a stock type air cleaner, that may help with the air cleaner base, you could mill them instead of modifying the air cleaner base... Possibly Promax carb company @ www.promaxcarb.com , also may have something, I think...

 

[joerg]

Today i took care of the angle the carbs were mounted at first. The milling machine was quite fun to work with.

I also installed the see thru plugs for the float bowls. Had them at home for half a year already and never felt like installing them. We also changed the main jets from 62´s to 64´s since the car was running a little lean when idling.

Then i took care for having enough space so the carb linkage can movve all the way it´s supposed to.

Last but not least i also ran into the problem that i couldn´t mount the fuel lines. But that was only a small
problem a grinder solved within 5 minutes

Then i put everything back together.

 

[Budnicks]

Looks good...

 

[joerg]

Today i drilled the holes for the accelerator cable and kick down linkage bracket

Then i mounted everything in the car and checked it for clearance and if everything was moving without resistance

 

[Budnicks]

Looks great, very clean & nice job...

 

[joerg]

Today i finished all the brackets for the ignition coil and everything and stumbled across a problem when i wanted to attach my brake booster hose to the vacuum fitting. The intake doesn´t have one.

Where would i drill the hole to mount the 3/8 vacuum hose fitting?

 

[Budnicks]

Take the top back off again, at the minimum, drill & tap one, oh no...LOL... I would say, at the back somewhere, on the base with a 90* nipple, pointing towards, the booster, would look the cleanest...

 

[mattsinger]

looks good. Very clean. I always liked the looks of that intake

 

[Byrd]

That's pretty sweet looking intake set up! Always liked the 6-pack.

 

[joerg]

Last time i worked on it, i drilled the hole for the brake boosters vacuum supply. Work is on hold at the moment since i´m in Germany until wednesday.

I´m also thinking of doing the modifications to the base budnicks mentioned earlier in this thread. Found drawings online so it shouldn´t be a problem i guess.
What does "retain this rib as cast" mean?

 

[mattsinger]

I would guess it means dont touch it, dont blend it, dont polish it......

 

[joerg]

I would guess it means dont touch it, dont blend it, polish it......

That´s what i thougt too, but since my motherlanguage is german i sometimes have to use a translator and the translation i get doesn´t make sense at all.

 

[joerg]

Lots of progress here again! I did the necessary modifications to optimize flow characteristics.

I finished cutting up the old hood and attached the scoop to it.

Once the liqiud metal was hardened out i mounted the intake on the motor. I had a really hard time finding the 2 long screws inside the intake. At some point the SAE system is really anoying to work with over here.

 

[Budnicks]

Very nice, I stored a bunch of those photos, from your project, for future references, your doing a great job...

 

[joerg]

I also found another sheet from the very same book which gives you the jet size numbers etc...