• Original casting pattern used for 1936-37, 810/812, Supercharged, Aluminum V8 Lycoming
• Patent number 2010782; Everett G. Fahlman; Cylinder head for internal combustion engine
• Woldman’s Engineering Alloys – Page 205
• Bohnalite X-3 S* Bohn Aluminum & Brass Corp. (Div. of Gulf + Western Mfg. Co.). … 0.75; bal Al. Heat treated: 32,000-50,000 TS; 24,000- 28,000 YS; 0.5-5.0 El ;~80-1 15 HB; For castings, cylinder heads; sand casting alloy, age hardened.
• Factory used original; good condition. $5,000 OBO