at the parts store they asked if i had flat or roller lifters, and since i have an '84 naturally i said flat, but since it's a reman engine it could be anything. i think I can measure the pushrods (84=9.754 in, 85-86=8.3996 in, 87-88=8.299 in) to be more sure. but what are roller lifters? i remember solid and hydraulic lifters from the old days, not "flat" and "roller".
thanks!

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'84 2m4 se, a work in progress http://www.mtsu.edu/~mkr2c/fiero.htm

"Flat" lifters are cylindrical in shape with a flat bottom, where they contact the camshaft. "Roller" lifters have a roller, or wheel, instead of a flat bottom. This allows for much quicker "ramp up", which in turn will allow for better flow (as simply as I can put it). You have to have a camshaft designed for each type of lifter. You can't run a flat tappet (lifter) on a roller cam, and vice-versa. Hope this helps. BTW, you do have a flat tappet camshaft in your car.

The conventional solid and hydraulic lifters you're familiar with are "flat" lifters. Roller lifters have a wheel on the bottom that rides on the cam, like these: http://store.summitracing.com/partdetail.asp?part=13729

To make matters more complicated, roller lifters can be either solid or hydraulic, just like flat lifters.

Clear as mud?

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Doug Chase
'88 Fiero Formula 5-spd (autocrosser)
'88 Fiero GT 5-spd (daily driver)
'85 Fiero GT 5-spd (rally car)
Custom roll cage fabrication available
Custom exhaust fabrication available

abundantly clear, thankyou very much! big "+" for you both.