Note: Low mounted factory LS A/C needs relocated when running a UMI tubular k-member, we recommend an A/C relocation kit from www.kwikperf.com. K-member was designed around the LS1 oil pan and also works with the Holley 302 oil pan. Other oil pans may not clear. P/N 2404 k-member can also be used with a factory SBC engine by not installing the included LSX motor mount stands.