Hi all, despite being my first post, I've been an avid G8 fan. I've read every TSB, and even got a chuckle out of Mark Reuss once talking about (okay, pleading for) CNG G8s in a chance encounter. I'm finally in a position to buy one.
Anyways, I know talk of LLT swaps has been dismissed in the past. Since those threads, GM added the LLT as an engine option on the Caprice PPV. The PPV's ECM pegs it at 302 horsepower and 30 mpg highway. This is what I wanted from a 2010 G8. Thank you Presdential Auto Task Force... I digress.
But I love the G8. And, I can't find a Caprice PPV LLT for under $25k.
You've probably figured out my plan. Get a high-mileage G8 at a bargain. Wait for the G8's LY7 to die, and swap in the LLT using PPV's setup, and swap in any parts that differ between the two.
There are potential roadblocks, of course:
* The ECM differences (if any... and really, there may few if any) between Caprice PPV and G8
** I am buying a '09.5 with the updated DIC, so hopefully there's less risk of that being an issue
* Transmission and TCM differences
* Possible engine mounting differences between LY7 and LLT
* Scarce part supply for Caprice PPV parts stateside to do the swap
* I'm in California, CARB loves to ruin people's days/months/years even when they're helping the environment with a more efficient engine
That all said, I'm optimistic, and I'd love to hear thoughts on the swap. I'm hoping I can pull the trigger on a G8 V6 and get it to 300k without a transmission or engine swap, but I'm trying to make the worst-case scenario on the eventual engine replacement be a realistic 300 hp, 30 mpg G8 too.
After all, who would put a replacement LY7 in a G8 if we could get something a bit better for very little more? I'm surprised L76 swaps haven't been spec'ed out, hopefully this swap is a bit more viable.
Anyways, I know talk of LLT swaps has been dismissed in the past. Since those threads, GM added the LLT as an engine option on the Caprice PPV. The PPV's ECM pegs it at 302 horsepower and 30 mpg highway. This is what I wanted from a 2010 G8. Thank you Presdential Auto Task Force... I digress.
But I love the G8. And, I can't find a Caprice PPV LLT for under $25k.
You've probably figured out my plan. Get a high-mileage G8 at a bargain. Wait for the G8's LY7 to die, and swap in the LLT using PPV's setup, and swap in any parts that differ between the two.
There are potential roadblocks, of course:
* The ECM differences (if any... and really, there may few if any) between Caprice PPV and G8
** I am buying a '09.5 with the updated DIC, so hopefully there's less risk of that being an issue
* Transmission and TCM differences
* Possible engine mounting differences between LY7 and LLT
* Scarce part supply for Caprice PPV parts stateside to do the swap
* I'm in California, CARB loves to ruin people's days/months/years even when they're helping the environment with a more efficient engine
That all said, I'm optimistic, and I'd love to hear thoughts on the swap. I'm hoping I can pull the trigger on a G8 V6 and get it to 300k without a transmission or engine swap, but I'm trying to make the worst-case scenario on the eventual engine replacement be a realistic 300 hp, 30 mpg G8 too.
After all, who would put a replacement LY7 in a G8 if we could get something a bit better for very little more? I'm surprised L76 swaps haven't been spec'ed out, hopefully this swap is a bit more viable.