furious70
Well-Known Member
I don't have a running 5.7 with the 6.4 cam but have the pieces. hotroddave on moparts has done it a byunch of times including in trucks and he likes it.
392 vs 6.4 take out prices vary a lot - you might find a truck 6.4 for 3500-4500 but 392's seem to be more 6-7000 as I've tracked off and on, vs $1500-2500 for truck 5.7 +09. I'm turbocharging so I don't need to spend the money on cubes.
392's come with sticks, 6.4's don't, not sure about any differences in cranks
I have not done this, just read about it, here is some info with photos:
https://www.forabodiesonly.com/mopar/threads/pilot-bearing-for-5-7-hemi-crank.207817/
Man I am really looking forward to this build!!!
I like the kits that Indy sell that hide the coils, and have the black valve covers, make it look similar to the gen 2!
Mancini Racing has engine mount kits for aprox $150, they allow use of stock k frame and engine mounts, they require TTi headers.
Schumacher creative services is among some other options.
I'm pretty some guys on moparts have already done it if not on here.
other reference
https://www.knowyourparts.com/technical-resources/engine/57l-hemi-anatomy/
Yes it sucks so bad that (Mopar)speed cost so much, but even a 5,7 will be GREAT fun!!!!
If you feel a 6.4 may be worth the money, try a take out engine, you can find them for about the price of a crate 5.7 or a touch less. I am sure these are things you are finding out for yourself.
If you have the time, try and drive a new 6.4 car from a friend or go to dealer and play like you may want to buy.
This may help sway you, into going for the 6.4 or the 5.7 may be plenty.
Although, that was a BAD idea for me, LOL, as I saw how much more power the 6.4 had over the 5.7.
The other thing is with a manual transmission and your 5.7 Hemi , it will be a monster!
I am guilty, as most of us are of getting part/HP fever when building up a project.
In the first project out line you pick just what you need to make it happen, and by the 4th or 5th revised list you have added every fancy, go fast goodie under the sun, and the project tripled in price, and is now out of my budget!!
If you go by factory HP rating a 440 was 375HP, and the 5.7 gen3 is 383HP, so if looking at it like that, you cant loose!!
My issue with my 69 Charger, is not the HP, its the instant torque, the big blocks have, and that low rpm snap your head back, throttle stab I love.(in stock form the 383 has more torque at lower rpm, then the 5.7 Hemi, even thought the Hemi has about 80 more HP!!)
I am not trying to drive around at 90MPH every where, all day anymore, doing the speed limit on back roads is fine for me now, I just want to get to that limit, quick!!!