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Old 01-27-2010, 09:18 AM
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Notalent Notalent is offline
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Location: Dallas, Texas/ Long Beach
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Default New 496ci with 781 Heads 560+HP/600+TQ

Just did an engine for a customer and being that its a semi popular build and alot of people like to know ahead of time if there engine will make vacuum or not this would be a good base line.

496ci 9.7.1 Compression
Scat 4340 Forged Rotating assembly
781 Heads with bigger valves and mild porting
Hyd Roller Cam 236/242 @ 50 .620 lift on a 112LSA
Edelbrock Air Gap Intake
Edelbrock Thunder 800cfm carb

Vacuum = 12" @ 1000RPM, 11" @ 950 RPM (take from carb).
1971 Chevelle - 496CI, TH400, 3.73 gears, 3500 Stall

Custom Built Street/Strip or Racing Engines!
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