I was checking out Keith Black pistons… and I found the following:
Listed for the following application… Chevy 350ci Stock-Type Pistons for 1969-78 Trucks, 1969-70 Cars, 1990-91 Corvette
350ci Stock-Type Pistons, Use w/5.7'' Rods, .030'' Overbore
· Piston Dia.: 4.030''
· Piston Top: Flat Top, 2-Valve Reliefs
· Comp Ratio: 10.9:1 w/58cc Heads, 8.9:1 w/76cc Heads
· Rings: 1/16'', 1/16'', 3/16''
· Priced as Each, Sold as Set
My question is… why would they be only for those applications? I am looking for some 30 over flat tops for my 76cc heads, and my block is a 4 bolt manufactured from 80-85.
From this description, I cannot see why the application is limited.