Edelbrock Exhaust Valve Guide - BBC Perf /RPM

Manganese-bronze valve guide (one each) for Performer & Performer RPM heads, except as noted. Edelbrock Exhaust Valve Guide-BBC Perf./RPM The Edelbrock #60985 E-Tec Cylinder Heads are replacements for 302, 327, 350 & 400 SB Chevy engines with Vortec-style manifolds. They feature an LT1-style raised runner intake port design for increased air-flow and ultimate performance. Chevrolet:Big-Block Mark IV:396 (6.5L)-502 (8.2L)