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Re: Advice on Bad Chevy Motor
Clay,
"Silent but extremely deadly" is a pretty tall order. Performance engines tend to be mechanically "noisy". A blower make s a ton of noise all by itself.
How important is handling? If it's high on the list, a well done 383 would be my "vote". Strong torque and tough stuff, I believe it to be superior to the 400 SB. The big block simply is too heavy for good handling in a 1st gen F-body. 400 is a "weak" block (350 "4-bolt" is MUCH tougher). 400 can make serious power, but all the necessary preparations for a "stock block" make it heavier and reduces it's ability to keep "cool", already an issue with the siamesed cylinders.
ProCharger can be an effective blower system with reduced noise and reduced maintainence. Keep your compression under 9.5:1 with iron heads or 10.2:1 with aluminum. This will make it easier to keep it running "right" on pump gas.
Tell us more about exactly what you want the engine to do, and we can be more specific.
Jim
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