Talk to a performance expert
mon-thurs 9-5 cst
They also fit the many Honda Clone, Tillotson 196, and Ducar 196 Engines. Dual Springs has many advantages over single springs for controlling heavy valve trains especially at higher RPMs. The innerspring acts like a damper for the outer spring as well as a safety net if the outer spring should fail.
We highly recommend using these spring when running more than .300 running lift higher RPMs.