If the cylinder heads are on the engine, you will need to add air pressure to the cylinder to hold the valves in place. Our example is the Craftsman 47089 compression test kit using the 14mm long ...

'Everybody wants to talk about bottom-of-the-page camshafts with calendar-length duration figures and valve lifts approaching 31/44 inch. With all this thinly veiled aggression going on in the ...

Those wound-up pieces of high-tensile steel under your rocker arms work so hard closing your valves over millions of cycles that they could probably use a replacement right about now. We're talking ...

A new tool developed by a professional trucker makes it easier to remove valve cap stems, including the difficult-to-reach stems on inner duals, and also can remove and reinstall valve cores from the ...

Auto magazines are full of 1,000-horsepower LS engine stories teeming with superchargers, turbochargers, intercoolers, massive loads of nitrous, race gas, and all sorts of glamorous equipment. While ...

SAFE & EASY COMPRESSION: The ABN Auto Valve Spring Compressor C Clamp Tool Set Service Kit includes 5 adaptors to correctly fit, install, and remove automotive valve springs VARIOUS APPLICATIONS: ...