Quote:
Originally Posted by Idaho2018GTPremium
I'm not sure if you're just referring to the block casting itself, or the short block, or the long block. That said, the LT1 and LT4 blocks are similar, but the LT4 has additional pressure relieving holes in the lifter valleys to help allow for better oil draining. I'm not sure what other minute differences there are, but I'm sure there are others.
Practically everything that bolts up to the block itself, however, as I'm sure you're aware, is upgraded or improved over the LT1, so making the LT4 short block or long block into a standard LT1 would be too expensive. For example, the forged LT4 crank is stronger than the forged LT1 crank (which fails when subjected to extreme tests at LT4 power levels). The LT4 heads are Rotocast 656T6 alumimum - a stronger casting method and a stronger material itself.
Of course, there's many other differences in the long blocks as well.
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Yes, I was thinking short block. Some money could be saved to pay for better stuff in all V8 Camaros by unifying the process. It would be interesting to see the cost difference verus the two builds. And of course suppliers would have to keep up. It is probably not practical. I was not aware of the thrust bearing problem on big builds. But yea Chevy if you act on this crazy LOL idea fix that bearing too.
I wonder if the LT4 short block is heavier?