Butters "Winter Upgrades". . Starting a Little Early

Dantra said

It's all subject to sources I suppose. I can't imagine running a. 0005 lol.

Here's a different pdf, stating right there with 5.7 specs. They're all the same journals, which is 2.55 something.

Oh.. Something to add about the Manley crank is that it uses 2" rod journals. Chevy bearing, more or less... Narrowed with the H. Gives it better rod to block ckearance

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True, source is important. I have a 2011-14 Challenger manual and it lists 0.0009-0.002 main journal clearance for the 6.4 as well. The first image was from a manual that was listed as for a '15-18 Charger.

Sticks in my head that the oil requirements for a 6.4 were different than a 5.7, too. When I had my Challenger, seems like the dealership service writer made an offhand comment that an oil change for a SP was much more expensive than for my R/T. The '15-18 Charger manual lists 5W-20 for the 5.7 and Pennzoil Ultra 0W-40 for the 6.2 and 6.4. So when I saw different clearances for the 5.7 compared to the 6.4 I didn't look further.

The '11-14 manual doesn't even list an oil viscosity for the 6.4, only the 5.7 (5W20) and 6.1 (Pennzoil Platinum European Formula 5W-40) even though the 6.1 wasn't offered in 2011. Note that despite the different oil requirements, the main journal clearances were the same for the 5.7 and 6.1 in the '11-14 manual.

And while the manuals I have say "Factory Service Manual", they feel under developed to be from the factory. So no idea how accurate they are.