Copper Collector Gasket Set with Hardware 3" 3.0" If your standard Bowtie block

If your standard Bowtie block could handle 1500+ HP it would be Speedmaster's H1 engine block

Couple this Hi-Ram intake with the high flowing LS1 style cylinder heads has outstanding potential for naturally aspirated and forced induction applications

An engine with a 4340 billet steel crankshaft will rev faster and cleaner due to the different harmonics produced from the high grade material

Designed for use with 1-1/8" diameter

thick copper material that is not only durable

Copper Collector Gasket Set with Hardware 3" 3.0" If your standard Bowtie blockThese Speedmaster Copper collector gaskets are about as close to blow proof as you can get. They're made from . 043 in. thick copper material that is not only durable, but it also conforms to surface irregularities for a tight seal. Do the job right with Speedmaster Copper collector gaskets. The gaskets are reusable, and hardware is included.