I am selling my Australian 351 Cleveland block. Casting # XE-192540 These are the 4 bolt main, thick wall, high nickel content blocks cast specifically for racing. Very rare! I heard maybe 300 were cast. Serious inquiries only please. No low ballers please. Due to the very heavy weight, prefer pickup only. If you are seriouely interested, email me, and I can email photos of the casting number and block. Thank-you for looking.