Valve check?

[the Ferret]

Don't know about cars..hardly ever drive them, but Honda has a history from the mid 80's -early 2000's of using hydraulic valves on some of it's motorcycles

The 84-86 Honda CB 700S had hydraulic valves (and shaft drive), about the same hp as the CB1100 and revved at least 1500 rpms higher than the CB 1100 with peak hp coming in at 10,000 rpms

The Honda CB700SC is a motorcycle produced by Honda from 1984 to 1986 and more commonly known as the Nighthawk 700S. It could reach a top speed of 147 mph (236 km/h). Max torque was 44.99 ft/lbs (61.0 Nm) @ 8000 RPM. Claimed horsepower was 78.32 HP (58.4 KW) @ 10000 RPM.

83-85 650 SC Nighthawk also had hydraulic valves ...and shaft drive

In 1982, the Nighthawk replaced the Custom of the previous years and featured a re-designed tank and side covers. In 1983-1985 a new DOHC engine replaced the SOHC engine used from 1979-1982. The new engine had hydraulic valve lash adjusters and was rubber mounted. This year also saw the move from chain drive to shaft-drive for this model.
Honda CB650SC
1983 Honda 650 Nighthawk.jpg
Manufacturer Honda
Also called Nighthawk 650
Production 1982–1985
Class Standard
Engine 656 cc (40.0 cu in) DOHC, air/oil-cooled inline four
Power 72 hp (54 kW) at 10,000 rpm

The CB 750 Nightawk 1989-2003 (Flynrider has one of these...and I had a 2000 model)
Nighthawk 750

1992 Honda Nighthawk 750 Also has hydraulic valves
From 1982 through 2003, with the exception of several years, Honda produced a CB750 known as the Nighthawk 750. Early models were designated the CB750SC Nighthawk while later models were simply known as the Nighthawk 750. The Nighthawk 750SC had a 4-stroke engine with a 5-speed manual transmission, chain drive, and front disc and rear drum brakes.
Power 51 kW (68 hp) @ 8500 rpm

My 2000 CB750 Nighthawk