1.6 or 1.7 roller rockers? e7 heads - Page 2 - MustangForums.com


5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

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Old 11-12-2008, 03:56 AM   #11  
86GT 93LX
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thats a sweet price installing them right can be real bish i hear. so aside from gears what else would you say prime?im selling my 85 gt vert to get a new t5 for my 86gt kinda shame actually but im not a fan of aod cars or verts or notches...but sadly a vert is alota fun with the top down but rippn it up in a 5.0 5spd is alot more fun
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Old 11-12-2008, 04:35 AM   #12  
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Old 11-12-2008, 05:00 AM   #13  
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See my mod list...inexpensive and a good place to start before you open the motor up. My car is a great car on the street, you really only notice the effects of the geriatric heads when speeds get above 100mph and I live in a metropolitan city with slow moving highways so I really don't give a rusty fvck. You're not going to see me doing any 140mph pulls on Youtube LOL! Those ****ty E7's actually bottle up decent torque. You won't need bigger injectors until you boost or make much more power and then you'll need to address the fuel delivery as well. Do the basic bolt ons first and then work up to the H/C/I supporting mod stuff as cash allows. Just my two cents...

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Old 11-12-2008, 05:53 AM   #14  
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I've got 1.72's on my stock motor fox and well....aside from not being that big of a diff in power... with stock valve springs your gonna float. I have valve float at 5300 rpm and above.

After reading the "bolt on myths destroyed" stickie in the general 5.0 section... it seems that 1.7 rockers help a bone stock motor gain around 10 hp .... with some intake mods it looks like it actually hurts performance... not really sure how that works but im a newb with airflow.

When i put my intake parts on im taking the 1.7s off...
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Old 11-12-2008, 06:08 AM   #15  
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I've got 1.72's on my stock motor fox and well....aside from not being that big of a diff in power... with stock valve springs your gonna float. I have valve float at 5300 rpm and above.

After reading the "bolt on myths destroyed" stickie in the general 5.0 section... it seems that 1.7 rockers help a bone stock motor gain around 10 hp .... with some intake mods it looks like it actually hurts performance... not really sure how that works but im a newb with airflow.

When i put my intake parts on im taking the 1.7s off...
I put mine on to change the cam lope slightly and to help the 'ole 5.0 from falling on it's *** above 5Krpm's. My ram air settup is said to produce 2-3psi above 60mph (whoohoo I know!) but I did notice a slight diffference, not so much on high end pull but moreso from her falling away when she used to. It was worth the $ IMO. They were cheap and easy and didn't affect my low end grunt...
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