5.0L (1979-1995) MustangTechnical 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.
Sponsored by Weld Racing
Welcome to Mustang Forums!
Welcome to Mustang Forums.
You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!
Would roller 1.7 rockers make a noticeable gain over stock rockers with my current setup? I'm not asking about worth as everybody has a different view on worth, just will i see and feel a gain in hp/torque.
Ok here is the planned setup: Stock 91 HO lower end and stock cam, GT40P heads with upgraded springs, GT40P intake, 65mm TB, 70mm MAF with 24# tube, 24# injectors, 190 lph fuel pump, CAI, BBK longtubes with offroad h pipe, no smog pump. The car is also running 3:73 gears and a slushbox.
Also if anything is off about this set up let me know. Thanks
This ad is not displayed to registered or logged-in members. Register your free account today and become a member on Mustang Forums!
I noticed a difference when I did mine a few years back. I upgraded the car one part at a time, including the 1.7 Crane Cobra roller rockers, and they made a noticeable difference in both power (positive) and gas mileage (negative). At the time I still had the stock heads, intake and cam in the car, but with aftermarket exhaust.
89 Coupe, 369 big bore, AFR, custom Comp cam, Kooks, 3" exhaust, 11.6 @ 121 mph
04 Cobra, JLT 12" CAI, Magnaflow, Borla, Stifflers, FTBR Rr Susp, MM Frt Susp, 12.4 @ 115 mph
67 Cougar, XR7 GT, 462 FE, 4 spd, Edelbrock heads, PI intake, Global West
They're good for a few extra ponies and a little more loopy idel, but downside is your valve train will wear out 25-50% faster. Most people have to rebuild the valve train around 75,000 miles due to the added wear. Basically as they wear the valves begin to float reducing power.
This forum is owned and operated by Internet Brands, Inc., a Delaware
corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford
Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor