Cadillac (331, 365) Valve Cover Spacers 1" ... SOLD IN SETS (Two Spacers) Made in the U.S.A. from 100% U.S.A. Billet Aluminum * Stud Kit not included with 1" spacers - look in Stud Kits for your specific application. Buy Now

Cadillac (331, 365) Valve Cover Spacers 1/2" ... Includes stainless steel bolts and washers  SOLD IN SETS (Two Spacers) Made in the U.S.A. from 100% U.S.A. Billet Aluminum Buy Now

Cadillac (331, 365) Valve Cover Spacers / Adjusters ... This adaptor Moves both Valve Covers up 1/2" and Toward the Intake of the engine 3/8"  to allow more room for aftermarket valve train components Includes stainless steel bolts and washers  SOLD IN SETS (Two Adjusters) Made in the U.S.A. from 100% U.S.A. Billet Aluminum Buy Now

Cadillac (331, 365) Valve Cover Spacers 3/8" ... Includes stainless steel bolts and washers  SOLD IN SETS (Two Spacers) Made in the U.S.A. from 100% U.S.A. Billet Aluminum Buy Now

Cadillac (390, 429) 1963-1967 VALVE COVER SPACERS 1/2" ... Includes stainless steel bolts and washers  SOLD IN SETS (Two Spacers) Made in the U.S.A. from 100% U.S.A. Billet Aluminum Buy Now

Cadillac (390, 429) 1963-1967 Valve Cover Spacers / Adjusters ... This adaptor Moves both Valve Covers up 1/2" and Toward the Intake of the engine 3/8"  to allow more room for aftermarket valve train components Includes stainless steel bolts and washers  SOLD IN SETS (Two Adjusters) Made in the U.S.A. from 100% U.S.A. Billet Aluminum Buy Now

Cadillac (472, 500) Valve Cover Spacers 1" With Evacuation / Oil Fill Ports ... These Spacers are engineered with an additional port on the rear intake manifold side  of the head on each side of the motor taped to take a 3/8 pipe fittings to be used for Evacuation / Oil Fill Ports SOLD IN SETS (Two Spacers) Made in the U.S.A. from 100% U.S.A. Billet Aluminum * Stud Kit not included with 1" spacers - look in Stud Kits for your specific application. Buy Now

Cadillac (472, 500) Valve Cover Spacers 1" ... SOLD IN SETS (Two Spacers) Made in the U.S.A. from 100% U.S.A. Billet Aluminum * Stud Kit not included with 1" spacers - look in Stud Kits for your specific application. Buy Now

Cadillac (472, 500) Valve Cover Spacers 1/2" ... Includes stainless steel bolts and washers  SOLD IN SETS (Two Spacers) Made in the U.S.A. from 100% U.S.A. Billet Aluminum Buy Now

Cadillac (472, 500) Valve Cover Spacers 3/8" ... Includes stainless steel bolts and washers  SOLD IN SETS (Two Spacers) Made in the U.S.A. from 100% U.S.A. Billet Aluminum Buy Now