Aluminum casted cylinders with centrifugally spun cast-iron liners provide excellent thermal conductivity
Cylinders honed to match pistons
Bore sizes from 3 7/8" to 4 1/8" (107" kits require case boring)
Compression ratio of 10.5:1 on either kit
Includes a flange mount manifold, Cometic MLS gasket kit and Ross Racing Piston kit
Available in natural or black finish
Made in the U.S.A.
NOTE: Top End kits accept stock rocker arms; for better rocker arm alignment on the valves when using high lift cams, use Delkron's +.030" billet rocker arm supports, PART #2009-9924.
NOTE: Some machining required for use with stock rocker boxes.