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Author Topic:   Small Block Chevy - 1.5 vs 1.6 Roller Rocker
Dirt Freak

Total posts: 248
posted February 05, 2002 10:19 AM
What's the difference between 1.5 and 1.6 rockers? Do 1.6's require any other changes?

Dirt Freak

Total posts: 201
posted February 05, 2002 04:43 PM UIN: 27426975
we run 1.5's on exhaust, and 1.6 on intake. allows us to dump alittle more fuel in. watch clearance on valves.


Dirt Maniac

Total posts: 128
posted February 05, 2002 09:47 PM
Need to either drill out pushrod holes in head and run guide plates, or slot them.
As far as lift, just as an example, if you have a cam with .300 lift, 1.5 rockers would give you .450 at valve, 1.6's would give you .480 at valve.

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