1.7 roller rocker install tips needed
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Lead Driver
Joined: Apr 2001
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From: Midwest
1.7 roller rocker install tips needed
next weekend I am going to swap 1.7 roller rockers into my 95 5.0. I have never been into a ford engine before,what is involved in this swap? The upper intake needs to be removed,right? what are some tricks to make that easier,i understand there is a bolt that is tricky to get to? I know I will need new valve cover gaskets,are there any other parts I need? I need to get the job done all at one time,not have it sitting around waiting on parts!! thanks for any tips/pointers
FTE Legend
Joined: Jun 2006
Posts: 31,930
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From: Ottawa, Ontario
There is 1 hex head bolt in the center under the intake, you'll need a long bit or a short one taped into a 1/4 drive sicket and a 6" extension. If you use an extension I suggest you tape it all together. The cleanest way to get the intake off is to remove everything attached to it first, vacuum lines, coolant lines, electrical connections, EGR tube or even disconnect the the whole valve from the intake if the tube doesn't want to disconnect from the valve. If the upper has never been off before there will also be a strut on the passenger side connected to the exhaust manifold.
Get new gaskets for everthing you touch, so that's the intake, EGR, and valve cover unless your motor already has the steel core rubber coated gaskets. If it doesn't this is the gaskets you want to get. You may have to clearance the baffles inside the valve covers as well, it depends what rockers you use some won't require additional clearance. If you do a dremmel with cuttoff wheel does the job easily. Here is what the baffle looks like, you can slice off the tabs where it's spot welded and remove the whole thing if necessary.
Get new gaskets for everthing you touch, so that's the intake, EGR, and valve cover unless your motor already has the steel core rubber coated gaskets. If it doesn't this is the gaskets you want to get. You may have to clearance the baffles inside the valve covers as well, it depends what rockers you use some won't require additional clearance. If you do a dremmel with cuttoff wheel does the job easily. Here is what the baffle looks like, you can slice off the tabs where it's spot welded and remove the whole thing if necessary.
Postmaster
Joined: Jan 2009
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...I wouldnt do any porting to the stock intake with SD... But if you do heads & cam & mass air then the edelbrock truck intake will work good . It has a plate on the upper that comes off so you can do any porting you want to do... More air flow more TQ...Thats why they make them for the truck ..Lew
FTE Legend
Joined: Jun 2006
Posts: 31,930
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From: Ottawa, Ontario
The only way a mod becomes too much for the SD efi system is if it makes the vacuum unstable, and typically the cam duration and overlap is what does that not the lift. Otherwise you can do whatever you want up to the supply limits of the fuel system, and that includes porting.
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Posting Guru
Joined: Dec 2008
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From: Mass.
so, for example in a 302 the comp cams 35-349-8 or for a 351 the crane cams 444232 with 1.7 roller rockers would be fine with sd? and im assuming one of the mentioned cams would make a little more power with the 1.7 rockers
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Thread Starter
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Lead Driver
Joined: Apr 2001
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Likes: 6
From: Midwest
There is 1 hex head bolt in the center under the intake, you'll need a long bit or a short one taped into a 1/4 drive sicket and a 6" extension. If you use an extension I suggest you tape it all together. The cleanest way to get the intake off is to remove everything attached to it first, vacuum lines, coolant lines, electrical connections, EGR tube or even disconnect the the whole valve from the intake if the tube doesn't want to disconnect from the valve. If the upper has never been off before there will also be a strut on the passenger side connected to the exhaust manifold.
Get new gaskets for everthing you touch, so that's the intake, EGR, and valve cover unless your motor already has the steel core rubber coated gaskets. If it doesn't this is the gaskets you want to get. You may have to clearance the baffles inside the valve covers as well, it depends what rockers you use some won't require additional clearance. If you do a dremmel with cuttoff wheel does the job easily. Here is what the baffle looks like, you can slice off the tabs where it's spot welded and remove the whole thing if necessary.
Get new gaskets for everthing you touch, so that's the intake, EGR, and valve cover unless your motor already has the steel core rubber coated gaskets. If it doesn't this is the gaskets you want to get. You may have to clearance the baffles inside the valve covers as well, it depends what rockers you use some won't require additional clearance. If you do a dremmel with cuttoff wheel does the job easily. Here is what the baffle looks like, you can slice off the tabs where it's spot welded and remove the whole thing if necessary.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
Yes, but the XE264 cam is already pushing the limits of the stock valve springs so adding 1.7 rockers is probably not a good idea. With cams like the Crane that fall significantly short of 0.500" lift then yes 1.7 rockers will help.
Posting Guru
Joined: Dec 2008
Posts: 1,074
Likes: 1
From: Mass.
ok so basically .500 lift is the limit on stock springs, thanks ill keep that in mind. sounds like the crane 444232 with 1.7 rr, headers and exhaust will be my combo for the 351 bronco project im planning out. ill just stay stock cam and 1.7rr plus header and exhaust mods on the 302 then. thanks for all the help, i think ill be happy with the results of these two builds if all goes right.
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