Quote:
Originally Posted by bennylava
Sounds like you'd want to get the one that came after the LM7... iirc there is a 330hp/350tq 5.3L. But it may not be an LS, it may be an LT engine.
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That's the 2014-2018 L83 Gen V 5.3L with DFI and AFM. It's still an LS engine just newer design.
Direct Fuel Injection is excellent for power and fuel economy. However... AFM or DOD, whatever you want to call it, is bad juju. AFM engines tend to have lifter failures that do a fair amount of internal engine damage. GM didn't learn anything from the Cadillac 4-6-8 engine debacle.
Installing a Gen V in place of a Gen III is non trivial.
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1959 M35A2 LDT465-1D SOLD
1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8
RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...
Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.