Often used as a term of derision by ricers for domestic V8 engines that are "overhead valve" designs with the cam inside the engine block as opposed to the cylinder heads.
Despite being a pushrod engine, the 5.0 has been modified to rev as high as 7000RPM and still pull strong at that speed.
A teenage slapper commonly found wheeling a Mamas and Papas round the grim council estates of the north. Will ultimately graduate to the position of breeding machine.