Join Date: Nov 2002
Location: SouthEastern PA
Hi. I think you have 1.6 ratio rockers ... but I'm not sure. The 89-97 Thunderbirds have a 1.73 ratio.
There is some room to increase or decrease your ratio ... many people with the later V6 go from 1.73 to 1.8. That gives more effective lift with the same cam. So, you would probably be safe with the 1.7 ratio either way ... see what I mean?
I searched the Internet for the exact ratio of your rockers, but couldn't find it. You may be able to get the info from a Ford dealer. Or, if you call the manufacturer of the roller rockers, they may be able to guide you to the best product for your car.
I hope this helps!
P.S. - I like the Fox-body cars, too. Just in case you didn't notice, the main focus of this site is the MN12 cars ... the 89-97 Thunderbird and Cougar. There is probably a forum out there with more information specifically about the Fox Thunderbirds, but I don't know any, other than Coolcats.net.
Owner, 1990 Thunderbird SC, white w/ gray cloth