Quote:
Originally Posted by Cmicasa the Great XvX
the OHV stigma... for some reason despite the engine's contemporary configuration, superior HP and fuel efficiency and low maintenance... GM still allows peoples idiotic perceptions... caused by even more idiotic Media, to influence their use of this engine company wide as the V8 of choice. They have tested successfully Direct-Injection in the Small-Block as well as HCCI.
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OHC vs OHV Weight... SIZE
People often fail to see in the Liters vs Liters argument is WEIGHT and SIZE... specifically when engines are "dressed..." which is really the only way to run them anyway.. For example...
In a comparison somewhere between the weight of the LS7 7.0L, LSA 6.2L S/C versus the Ford 5.4L S/C... the LS7 was lighter. In fact, if I remember correctly the LSA weighed in at approx 490lbs...including the addition of a SuperCharger ... the LS7... 458 pounds, while the Supercharged 5.4L in the GT500 I could swear weighs about 740lbs... |
Generally speaking, I agree that the CSB is underappreciated by some. But GM cant really do much to change the perception of these engines. They have more important things to do than go on a PR campaign for the small block. I supposed they could advertise that the 430 hp Corvette (manual) gets better highway fuel economy than a V6 Accord coupe (manual).
Weight, I thought the LSA weighs more than that. I think the LS9 is 530 lbs and I doubt the LSA is a full 40 lbs less. I don't know enough about the weight of the different components between the two engines to know which should be heavier. Anyway I'm pretty sure that the LS7 is closer to 440 lbs. I have no clue about the 5.4L, but 740 lbs sounds about right for a DOHC supercharged iron block, which is the heaviest configuration that you can have for a V8.