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0311htp Frugal12 Z

A valve spring compressor is used to install the springs. Air is pumped into the cylinder to hold the valves up while you perform the swap. Otherwise you stand the chance of dropping a valve in which case you'll need to remove the cylinder head to fix it.
1989 Pontiac Firebird Formula TPI Head Work - Rocking and Rolling

 A valve spring compressor is used to install the springs. Air is pumped into the cylinder to hold the valves up while you perform the swap. Otherwise you stand the chance of dropping a valve in which case you'll need to remove the cylinder head to fix it.  View Related Article

 

 

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