From what I have read the 6.1 and 6.4's have forged cranks. But do any of the 5.7's? Looking to possibly build a boosted hemi and if I can just get rods and listings and not a crank that would help out the wallet. I tried searching on here but couldn't find any info. I would love to have at least a 6.1 but those are too much $ still!

6.1 crank works in the 5.7,you can find those for $200 used in good condition. The reluctor is different for the crank sensor.

I have one for sale, but it needs to be turned down



justin

Are the cranks the same stroke? If I'm not mistaken the 5.7 is 3.58?

Yes they are

Spill the good hemi info guys before he puts an LS in his Road Runner!!

How about a new 4.050 crank?About $800, I think Molner makes some with 2.00 rod journals so you can use SBC rods, shelf pistons. Granted, it is more expensive, but if the rods are cheaper (SBC Hbeams) it might soften the cost some. There are a number of stroker pistons out there for some good 5.7 combos. I found a 3.888 stroke crank at Lofgrens at a good price, plus I bought the rods out of his Drag Pac motor which will give me about a 6.3 Hemi. I am not sure if he has any left, though.

Depends how much power you want to make, but the 6.1L crank is a good choice. I've talked to a few high HP engine builders that are using them (HHP,BES,etc...). I told them that I wanted to make 1000hp and they told me no problem on a boosted 6.1L stock crank.

I'm just starting going down this road. 6.1L crank, 03~08 block/heads, stock rockers, stock non-MDS lifters, and there are some new non-mopar drag pack intakes being cast.

80mm turbo should be able to make 1000hp pretty easy/reliably.

I guess I'm of the different crowd, for $800 or less, you can get a better crank than that of the stock crank, especially with priority oiling, eliminating the cross drilled crank oiling concerns of the stock piece. Plus, you get the option of a stroke change.

SO the 6.1 cranks are drilled same as the 5.7's?