heads
#1
heads
hey. so i had a quick question about different types of cams. i have a 85 chevy 350... i was told it has flat roller cams? and that the vortecs built later on have hydraulic roller cams... whats the difference there? and what do i have to do to convert it if i swap vortec heads for my current heads?
thanks,
moth423
thanks,
moth423
#2
your 85 should be a non roller motor. the vortecs are roller style. the 85 is just a typical flat tappet hydraulic lifter motor. you would need a new roller cam, roller lifters, the lifter retainers, pushrods for the vortec motor. check with summit racing, jegs and such, as you should be able to get all this in a kit.
the difference in roller vs flat is where the lifter contacts the cam at. your 85 is flat tappet style, meaning it is flat where cam hits it. rollers have a wheel basically, so when cam hits it, it's hitting the wheel of the lifter. less friction, more power.
the difference in roller vs flat is where the lifter contacts the cam at. your 85 is flat tappet style, meaning it is flat where cam hits it. rollers have a wheel basically, so when cam hits it, it's hitting the wheel of the lifter. less friction, more power.
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