Next I went to put on the valvetrain…which included setting the guideplates to help with proper valvetrain geometry and installing the roller rockers in the proper fashion which I will illustrate by showing the instructions off of
www.flowtechinduction.com . Included on my heads because I have the stud mounted roller rockers are guideplates that help keep the roller rocker on the valvestem stay centered by using the guideplates to “push” against the pushrod if needed. Now of course you don’t want the guideplates to rub against the hardened pushrods as much as possible. To keep this simple you want to be able to move around the guideplates so you can adjust there position to help keep the roller rocker tip in the center of the valve stem during rotation of the engine. Go ahead and remove the studs and apply blue loctite (easier on aluminum heads) one at a time. I did the intake part of the guideplate and the exhaust part of the guideplate separately to allow me to apply loctite and be done with it before the other side dryed. You will want to setup your valvetrain using the following method so you can rotate the engine and adjust the guideplates as need be. Torque the studs in your aluminum head to 60 ft. lbs. Here is the stud mounted roller rocker adjustment procedure for hydraulic lifters.
“1. Remove the valve covers, and pick a cylinder you are going to set the pre-load on. Only do one cylinder at a time.
2. Rotate the engine in its normal direction of rotation (clockwise) and watch the exhaust valve on that particular cylinder. When the exhaust valve begins to open, stop and adjust that cylinder's intake rocker arm.
3. To adjust, back off the intake rocker arm adjusting nut and remove any tension from the push rod. Wait a minute or two for that hydraulic lifter to return to a neutral position. The spring inside the lifter will move the push rod seat up against the retaining lock, if you give it time to do so.
4. Twist the intake push rod with your fingers while tightening down the rocker arm. When you feel a slight resistance to the turning of the push rod, you are at "Zero Lash". Turn the adjusting nut down one half to three-quarters of a turn from that point for street applications. Use 1/8 to 1/4 turn for race applications. Lock the adjuster into position. The intake is now adjusted properly.
5. Continue to turn the engine, watching that same intake valve/rocker you just set. It will go to full open and then begin to close. When it is almost closed, stop and adjust the exhaust rocker arm on that particular cylinder. Loosen the exhaust rocker arm and follow the same procedure described before in steps 3 and 4 to adjust this rocker arm.
6. Both valves on this cylinder are now adjusted, and you can move on to your next cylinder and follow the same procedure again.
There may be some initial valvetrain noise when the engine is first fired up but once oil pressure has stabilized and the engine heats up, it should quiet right down to a normal level.
Remember that some racier camshafts will have a mechanical sound to them and will not be a silent as factory units.”
This link right here should help you with pedestal mount adjustment (stock style):
http://www.cranecams.com/pdf/453e.pdf
After setting your valvetrain you can go ahead and install your valve covers if you would like and they won’t interfere with your header install. I would recommend putting on a new valve cover gasket unless you would like to use the OEM one which is reusable for many uses. After installing the valve covers (before bolting them down) rotate the engine over and make sure your roller rockers don’t hit the valve covers. Then you may bolt them down.
Go ahead and start putting on the accessories (smog pump if applicable, power steering/air conditioning/alternator/etc). Next will be installing your intake…which is shown below…and installing everything to get everything buttoned back up like the thermostat/vaccum lines/radiator/fan shroad/etc…all bolted up.
Just in case you forgot where some of your intake vacuum lines go I’ll try to jog the memory a bit with a little bit of a description: If your looking at the front of the engine and you look on the upper intake on the front left of it, that line goes to the charcoal canister. The vacuum line just to the right of it (thicker) goes around to a two way valve on the bottom right side of your upper intake and continues on into the back bottom of the lower intake where your pcv valve is located at. On the back of your upper intake you have a little intake tree that comes out of the back of the upper intake. It has three possible hose connections. The thicker one goes to the firewall vaccum tree where it is labeled as “S” (it will be a little up and to the right of the upper intake on the firewall along with other abbreviations like “B/R” and “A/C”…but connect it to the “S”. The other two possible vacuum lines are easy. One is red (mine was) and goes to your fuel pressure regulator and the other one goes to your EGR I believe. Hope that helps on the connections. I would suggest getting new EGR spacer and throttle body gaskets while your doing the intake install. Also get a new upper/lower gasket (a new intake should come with it). You will also want some O-rings for your injectors because overtime they can breakdown and leak and they will give you a fresh seal. If your installing new injectors at the same time you won’t need O-rings because your injectors will have them on already. I lubed mine up with a tiny bit of Vaseline to help them slide in the intake and fuel railing. Your local parts store will carry a “A/C-Fuel Line Disconnect Tool” kit for around $10 bucks or so and can become very handy if you work on your car a lot. It will allow you to disconnect your lower intake fuel rail to make the intake install easier and get one more thing out of your way. You can do it without disconnecting but it is real easy to disconnect it. Make sure you clean the heads off (if they are new heads you don’t need to) real clean and smooth so your intake gasket has a nice surface to adhere to and seal against. Brake or Carb Cleaner along with a razor or gasket scraper would work well. I would stuff your heads ports with paper towels or something similar to keep the scrapings from entering into where the valves and combustion chamber are. Also cover the lifter valley with a towel or more paper towels to keep the shavings out as well and use a shop vacuum to help with clean up. Now if you have new heads the cleaning the head/intake/gasket surface will not be necessary.
I put a nice thick bead of high temp silicone on the block ends (I don’t like using the rubber ends that are supplied with your intake gaskets…they can slip out and cause a leak) and let it sit for about 10 minutes to "film" over and then set the lower intake on: Before I put the intake on this is what I do so I put a couple dabs of silicone under the FEL-1250 gasket (the gasket I used) and position the gasket over the ports as perfect as possible and then allow those dabs under the gasket to dry (I also put a tad more silicone around the water passages for a little extra support) so it will not move as I lower the intake on. On my gasket I had to trim a little bit of the coolant passages on the gasket because it was protruding into the passageway...To help insure proper intake alignment as it is being dropped down I used my old intake bolts and cut the hex-heads off of them and threaded them into the heads. I used 4 of them and made a rectangular shape out of them to cover “all angles” when I dropped it down…once you get the intake down you can then unscrew the studs you made and start to install your new intake bolts (assuming you bought new ones)…I got some new ones from Summit which the part number is SUM-G1579HS. I f you didn’t buy new ones you can probably just find some studs to use temporarily.
I slightly torqued the intake down after the "filming" just to get a little "squish" on the silicone and let it sit overnight...the next day I did the final torqueing procedure with the torque numbers (some people go by feel).
A torque wrench is your friend: Go around 18-20lbs for the lower intake bolts and about 10lbs on the upper intake…Use the proper torque sequence to tighten the bolts and you will need to go through the torqueing sequence probably 4 or 5 times to get all the play out of the bolts when it squishes the silicone/gasket.
Here is the tightening sequence order in simple terms (looking from front of car):
7 8
3 2
11 10
9 12
1 4
5 6
Make sure you get all the connections back and install the distributor correctly if you removed it. I would change the oil once or twice just for a piece of mind thing and go over the valve adjustment procedures once more after they have been thru a heat cycle. Just as well you need to retighten the lower intake bolts after some heat cycles.
Now I know all this doesn't apply to your lifter install but I know you can sift and weave thru it
Good Luck with the lifter install
