Proform Magnetic Deck Bridge SPBM4 a VVT spring compressor

a VVT spring compressor

Engine and Performance Recommendations for this cylinder head: Serious street perfornmance

but time consuming procedure of setting air pressure by going back and forth between the air hose and the pressure gauge is no longer necessary

1991-1993 Chevrolet Caprice

Chevrolet 4

Proform Magnetic Deck Bridge SPBM4 a VVT spring compressorThis will go over cylinder bores up to 4 1 2". This is used to check piston to deck clearance, and it is magnetic so it holds firmly in place. Dial indicator 66962 is sold separately. PROFORM invites racers to experience the strength, innovation, and power behind the PROFORM brand. PROFORM Parts (Specialty Auto Parts U. S. A., Inc.) is a leader in the High Performance Automotive Aftermarket by engineering and manufacturing creative products from