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Ieatcamaros · 03-09-2005, 09:59 PM

Take off one head and put play-dough or putty of some kind on top of one of the pistons. Then put the head back on (with the gasket) and the rocker arms for each valve of the cylinder you put the putty on. Rotate the engine with a socket until both valves have opened and closed. Then take it all back down and measure the thickness of the play-dough where the valves left an imprint. Of course you will need to know the lift of the cam you checked it with so you know how much farther you can go. An eighth inch clearance is a good rule of thumb.

With 1.6 rockers the b303 cam has .480" lift. With 1.7 rockers, it has .510" lift.

03-09-2005, 09:59 PM	#1
Ieatcamaros Domestic Rice really sucks! Join Date: Apr 2002 Location: KY Posts: 973	Re: More Horse?? Take off one head and put play-dough or putty of some kind on top of one of the pistons. Then put the head back on (with the gasket) and the rocker arms for each valve of the cylinder you put the putty on. Rotate the engine with a socket until both valves have opened and closed. Then take it all back down and measure the thickness of the play-dough where the valves left an imprint. Of course you will need to know the lift of the cam you checked it with so you know how much farther you can go. An eighth inch clearance is a good rule of thumb. With 1.6 rockers the b303 cam has .480" lift. With 1.7 rockers, it has .510" lift. __________________ The sig says it all.