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View Full Version : So i went to get new lifters for the rustang

StangBoy
01-15-2005, 01:59 PM
and it lists roller and non roller

so what is it? :?
BetterDays
01-15-2005, 02:13 PM
What year?
prior to 84, non-roller (ie less expensive)
85+, roller (more expensive)

Experts, please correct if wrong and agree if correct.

Also depends if that is the stock motor, etc...

Ever open it up?
Eric86GT
01-15-2005, 02:22 PM
Roller......

http://www.jegs.com/images/products/2701053016_large.jpg

Nonroller (flat-tappet)

http://www.jegs.com/photos/24981216.jpg
StangBoy
01-15-2005, 03:08 PM
its an 86 GT, stock motor. so its a roller then?
negusm
01-15-2005, 03:10 PM
its an 86 GT, stock motor. so its a roller then?

Yes. 84 and before were non-rollers. 85 autos were non-rollers. 85 manuals were rollers. 86 and up were rollers.

-Mike
StangBoy
01-15-2005, 03:16 PM
its an 86 GT, stock motor. so its a roller then?

Yes. 84 and before were non-rollers. 85 autos were non-rollers. 85 manuals were rollers. 86 and up were rollers.

-Mikethank you
MurPHy
01-15-2005, 05:32 PM
Wait a minute. I'm confused now. What about solid and hydraulic? Are the roller lifters hydraulic, and the flat-tappets solid?
rbohm
01-15-2005, 05:35 PM
Wait a minute. I'm confused now. What about solid and hydraulic? Are the roller lifters hydraulic, and the flat-tappets solid?

8) flat tappet and roller lifters can be either solid or hydraulic.
MurPHy
01-15-2005, 09:29 PM
Wait a minute. I'm confused now. What about solid and hydraulic? Are the roller lifters hydraulic, and the flat-tappets solid?

8) flat tappet and roller lifters can be either solid or hydraulic.

Well, I just learned something. :)
Eric86GT
01-15-2005, 09:56 PM
Wait a minute. I'm confused now. What about solid and hydraulic? Are the roller lifters hydraulic, and the flat-tappets solid?

8) flat tappet and roller lifters can be either solid or hydraulic.

Yep, hydraulics use oil pressure to keep them pumped up to take up any slack in the valvetrain. Solids are always the same length, so the valve train has to be precisely adjusted to eliminate noise and the valves not making maximum lift (too loose) and make sure the valves don't stay open when they should be closed. (too tight)