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Cometic head-and-base gasket kit for a 4.250-inch bore with a .045-inch head gasket and .020-inch base. Multi-layer design evens clamp load across the sealing area and requires less clamp load, which helps reduce bore distortion. No sealants or re-torque are required, offering a cleaner installation and reliable sealing for twin-cam engines.
Cometic Mill Tech Twin Cam 4.250inBore H&B Kit .045inH/G & .020inBase
