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FWIW I believe the Magnums with the pedestal rocker are considered to be the longest lasting and best performing stock standard performance SB's. Maybe lowest cost and done right?
Most of the durability comes from the EFI. Those engines don't have carburetors washing down cylinder walls with unburned fuel.
I agree totally with you 100% The EFI being the main source of durability for the magnums. Another thing I thought of, when you look at a INDY cylinder head brochure, all of there SB crate motors are magnums.(might be 1 LA that's supercharged) The 360, 408, 415,440 are all Magnum SBs. Is this just because availability of cores?
NO!! It's not a Nova...
72' Demon 340-727-8 3/4 3.55
69' Charger 440-727-8 3/4
78 Powerwagon 318-727
99' Dakota R/T 5.9
74' Scamp (project)
96' Cherokee 4.0 4x4
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