Full set of (8) flat, adjustable, 2-piece, guide platesFor 3/8" diameter pushrods and 7/16" Rocker StudsFits Chevy 262-400 c.i.d. Small BlockDesigned for use on cylinder heads with relocated intake portsEngineered using stereo lithography Techniques for an accurate fitAble to be welded after final adjustmentContoured and clearanced for head boltsHardened and black oxide finished