Originally Posted by irwin
ok im going to give my oppinion on this subject. i have limited dealings with turbos or superchargers but from what i understand the bottom end of the na motors is the weak link, so my though process goes towards using the bottom end out of a srt dont know if this is possible or not, iknow there are some differences between the 2 but i do believe the block will bolt up to the manual trans (hddp a lil help please). so my idea would be to get a complete srt long block or complete motor who cares, you can always sell off the other parts, bolt the na junk back up top and have a 20 psi bottom end ( i do believe thats wht ive seen some of the srts running) but at what point would it just make more sense to take that srt motor and run a stand alone??? i'm waiting to see what happens to hddp an latana tx i want the power but don't want to waste my money, and i want to retain my manual tranny, oh and anyone seen a stage 2 clutch cause that would be a major need in doing something of this sort?
I believe the bottom ends of the NA and AMG motor are the same, exept for the rotating assembly. I think both engines use forged connecting rods, but the AMG motor has completely different pistons, and a forged crank. yet I could be wrong, have you seen the AMG lower block? does it have a girdle or something? the NA block has 4 bolt mains from what I've seen in pictures on the site here.
just remmember doing the SRT6 or V8 swap will probably cost you $10,000. so you might as well pay Kleenman $10,000 and have them ship you their N/A supercharger upgrade. it makes 300hp and is the easiest conversion of all. If you get crazy later down the road you can take off the S/C and convert it to a twin turbo set up. keep the same pressure but the drag reduction might gain you another 40-50 hp
I personally would think it to be unwise to run any kind of alluminum block as high as 20psi. the machine work would be exspensive, your going to have to O-ring the heads. The smartest way of making power is to go with the v8 motors. keep it simple and normally aspirated for the street. you can always throw power adders on later.