How to install in intake?

[Sport/Truck]

Originally Posted by manimal

Make sure you get the proper intake gasket. Dont use the stock style fel-pro on an aluminum intake as it may cause leaks. I beleive the part# is 1256 Fel-pro is what you want to use. And you dont really need a torque wrench if youre careful. Start in the middle and work your way out. Yes use the ultra black rtv on the ends without the end seals. Lay approx. a 1/4" bead on each end of the block,run it up the side of the head about 3/8" on both sides front and back. Then with a little blue silicon put a small amount around each water passage then lay your intake gasket ont the heads. then GENTLY lay your intake in place. Make sure you get it the right spot so you dont have to move it around too much and pull out the RTV.start the intake bolts by finger first. Use a little rtv on the threads to seal the bolts, and use a small (AN) style washer with the bolts tighten them in order starting in the middle and working your way to the ends. Let the truck set overnight so the RTV cures. As long as you mark the location of the rotor tip on your distributor and put the dist. back in the same way you can tune it by ear to get you by or you can purchase a timing light and set it right. change your oil when youre done cause you will get some antifreeze/water in the lifter valley when you pull the intake off.-Sorry SOOO long!

I searched engine& drive train and this forum. The information I found has me concerned…..I have a felpro 1205 gasket, is it ok to use? I’m putting on a Edelbrock intake and only want to do this once!
I plan on using ultra gray on the intake ends (in lieu of the rubber) and also on the bolts.
Can I use Teflon paste on the bolts?
I’ll probably find torque info in my shop manual or Google.
s/t

[jgrh64]

I used a stock gasket with alum intake with no problems and I just use ultra black for everything else, ultra gray is about same just rated for imports

[BP68]

I put a Edelbrock aluminum intake on my cast iron vortec heads using GM gaskets for a Vortec motor (I work at a dealer) You can use Teflon on bolts that need sealing. But I am a FIRM believer in proper torque on the bolts.

[Sport/Truck]

Originally Posted by BP68

I put a Edelbrock aluminum intake on my cast iron vortec heads using GM gaskets for a Vortec motor (I work at a dealer) You can use Teflon on bolts that need sealing. But I am a FIRM believer in proper torque on the bolts.

Thats what has me concerned. If I only put sealant on the bolts that need it, and not on others it could affect torque value. So, maybe I should just put a dab on them all?
s/t

[dave2953]

When I did mine I didn't put any sealant on the bolts, but none of them had leaked before either. I used Ultra Black on the ends; I don't have any experience with the grey. Just make sure you lay a fat bead and torque the bolts in sequence. IIRC the torque is 35 ft. lbs. I'd check to be sure, though. Also, re-check the torque after a day or so. Mine always seemed to loosen up a bit after they got hot.

[chip46wis]

Agreed with the re-tightening---I had a 375hp-396 years ago in a 69 Z-28 camaro (of course not stock motor) I had to re-tighten the intake about every 1000 miles sometimes 1/4 1/2 turn per bolt

[Sport/Truck]

does my felpro gasket sound like it will work? It's a 1205.
I wonder if a lock washer will help keep it tight.
s/t

[redhead69]

iirc use teflon liquid tape on the inner 4 bolts on each bank. Also the ultra around the end water jackets.. check out my engine thread for some pics and some help from others when I did mine.. holding up great.. no problems
http://67-72chevytrucks.com/vboard/s...d.php?t=239740

[68C15]

1256 is stock ports, 1205 is small race, 1206 is large race ports.
check it against your heads and intake.

[Sport/Truck]

Originally Posted by 68C15

1256 is stock ports, 1205 is small race, 1206 is large race ports.
check it against your heads and intake.

Thank you for clearing this up.
s/t