MANIFOLD CHANGE
Thread Starter
|
Senior User
Joined: May 2010
Posts: 188
Likes: 0
From: ARLINGTON WA
MANIFOLD CHANGE
Hello all, I'm getting ready to change out manifolds on my 69 390. 2 barrel to 4 barrel cast. Is there anything I should be aware of that might make this a bad experience. I've heard something about oil pump shaft and silicone at the rear corners. Any other hints would be appreciated. THX David GO HAWKS
Fleet Owner
Joined: Dec 2009
Posts: 20,678
Likes: 82
From: NorCal
Go Broncos!... only cuz the Seakocks took out the Niners!
2v to 4v swap....
You may need a single-port manifold fitting: https://www.ford-trucks.com/forums/1...l#post13559606
Have a helper to assist in removing the old manifold and to install the new one. Them iron beasts weigh 82 lbs.
Installing a new thermostat? Drill a 1/8-inch hole on the thermostat flange and install it with the hole at the 12 o'clock position. This will allow trapped air to escape when filling the cooling system.
Replace the bypass hose.
Holding the thermostat in the thermo housing's recess is dang hard and tends to slip outta position. I applied small dabs of RTV to the thermostat and "pre-glued" to the thermo housing, let it set, and then installed it on the manifold.
Ditch the cork "China wall" gaskets and use RTV. Prepare the China walls with small dimples so the RTV has something to grab onto instead of a slick, smooth surface. It should look like this:
Good luck and GO BRONCOS!
2v to 4v swap....
You may need a single-port manifold fitting: https://www.ford-trucks.com/forums/1...l#post13559606
Have a helper to assist in removing the old manifold and to install the new one. Them iron beasts weigh 82 lbs.
Installing a new thermostat? Drill a 1/8-inch hole on the thermostat flange and install it with the hole at the 12 o'clock position. This will allow trapped air to escape when filling the cooling system.
Replace the bypass hose.
Holding the thermostat in the thermo housing's recess is dang hard and tends to slip outta position. I applied small dabs of RTV to the thermostat and "pre-glued" to the thermo housing, let it set, and then installed it on the manifold.
Ditch the cork "China wall" gaskets and use RTV. Prepare the China walls with small dimples so the RTV has something to grab onto instead of a slick, smooth surface. It should look like this:
Good luck and GO BRONCOS!
Thread
Thread Starter
Forum
Replies
Last Post
wattspd
1987 - 1996 F150 & Larger F-Series Trucks
13
Jan 18, 2018 02:45 PM
oldmansimek
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
8
Jan 18, 2006 11:11 AM
oldmansimek
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
1
Jan 11, 2006 10:03 AM
Tesch101
Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W)
2
Nov 8, 2005 08:52 AM
