There Is No Replacement For Displacement.
Starting with a Gen VI four bolt main block, GM fills it with forged
pistons, forged 4340 steel connecting rods with 7/16'' bolts, a 1053
forged steel crankshaft and a steel roller camshaft. Then they torque
down a pair of big breathing rectangular port heads with 2.19'' intake
and 1.88'' exhaust valves. With their 118cc combustion chambers yielding
a streetable 8.75 to 1 compression ratio, this engine is ready to thump
on readily available pump premium. Then they top it all off with an
aluminum dual plane intake manifold and dress the engine with a cast
iron water pump, 6 quart oil pan, windage tray, 14'' flexplate and
torsional damper. All you need to do is provide a 750 cfm carburetor,
HEI ignition system, headers with 2'' x 30'' primaries and low
restriction mufflers. Requires an electric fuel pump because the 502 Gen
VI block has no mechanical fuel pump boss.
450 HP @ 5250 RPM, 550 FT.LBS of Torque @ 3500 RPM (Max. Recommended
8.75:1 Compression Ratio
Cast Iron 4-Bolt Main Block
1053 Forged Steel Crankshaft
Forged Aluminum Pistons
4340 Forged Steel Connecting Rods w/ 7/16'' Bolts
Cast Iron 118cc Chamber Cylinder Heads w/ 2.19'' Int./ 1.88'' Exh.
Steel Hydraulic Roller Cam, Lift: .510'' Int./ .540'' Exh., Duration
@ .050: 211° Int./ 230° Exh.
1.7 Ratio Rocker Arms
Aluminum Dual Plane Intake Manifold
8'' High-RPM Torsional Damper
Cast Iron Water Pump