[STD Bore 4.125 ]
This listing is for (8) Speed Pro Hyper eutectic Coated Skirt Pistons compatible with Chevrolet 400 cid small block V-8 1970-80 - 4.125" bore (at STANDARD) Flat top with 4-valve reliefs. Available in your choice of sizes. Click size needed before adding to cart!. Good for street/strip or light race. 5/64" 5/64" 3/16" ring grooves. .927" pin diam. Stock 3.750" stroke. PRESS FIT RODS ONLY! Stock 5.565" length rods.