• 1974 Eldorado 500 “5200” block [1, 2, 3, 4, 5, 6] bored 0.030” (507cid) with oil returns smoothed [1, 2].
• Cast 10:1 (w/76cc head) 500 pistons [1].
• Entirely balanced rotating assembly [1].
• ARP rod bolts.
• 472 76cc closed chamber heads (rebuilt and modified) [1].
• Torque Maximizer I camshaft and lifter kit (214° @ .050 intake, 214° @ .050 exhaust, .472 lift on intake, .493 lift on exhaust, 112° lobe separation; 1500 - 5500rpm).
• Rocker system upgraded to MTS VT59 1.70 full support shaft system [1, 2, 3, 4, 5, 6, 7].
• Fabricated aluminum valve covers (PCV and breather by me) [1, 2, 3, 4, 5, 6, 7].
• Edelbrock 2115 intake manifold [1].
• Holley 3150 750cfm carburetor, K&N drop base assembly with X-Stream lid using 14x3 element.
• Holly “Red” electric fuel pump mounted by stock fuel filter, stock pump boss blocked off.
• Exhaust manifolds from early model 472 with no heat riser flap.
• Dual 2.5” pipes from manifolds to single 3” [1] , dumps in factory location after single Flowmaster Super 40-Series muffler [1].
• 1977-1979 425 power steering pump, bracket, and hoses.
• 1977-1979 425 brackets, pulleys, and clutch-less cooling fan with spacer.
• 1977-1979 425 vacuum advance HEI distributor with Borg Warner Nascar (brass) cap, rotor, coil, and wires).
• 1980-1984 368 engine mounts used (425 mounts will work).
• 1980-1984 368 oil pan and pickup tube (425 pan and pickup will work) - 472 cleared FINE, 500 required a few dimples.
• Melling 1977-1984 368/425 Iron oil pump [1].
• Cloyes roller timing chain [1].
• Closed impeller water pump (improved cooling efficiency).
• Autolite A7127-12M alternator (fits 1977-1979 425).
• Dayco 17490 belt used to omit A/C compressor (trial and error to find this belt, and must be installed before water pump pulley).
• 472/500 water neck with 368/425 hose installed backwards to late model Brougham radiator.

Other engine bay info:

• 1969 DeVille power steering cooler [1].
• Late 1970's Eldorado Hyrdoboost system [1, 2, 3] - Removed for brake testing.
• 1979 C3 Corvette Master Cylinder with Wilwood adjustable proportioning valve.
• Exide Orbital battery mounted in trunk.
• MSD 6A Ignition box.
• All brackets, pulleys, power steering pump, timing cover and fan spacer sanded to bare metal and clear coated [1, 2, 3, 4].