Product Description Precision Machine .001 bronze intake/exhaust valve guide is made of Ampco 45. Guide will accept .600" lift. V-Twin Manufacturing Ampco 45 .001 Intake/Exhaust Valve Guide at RevZilla Browse all RevZilla deals $27.99 In Stock at RevZilla Price verified today Buy Now at RevZilla Secure checkout Easy returns or compare prices Amazon eBay Product Details Brand V-Twin Manufacturing Size OS Condition New MPN 11-0951 V-Twin Manufacturing