> Date: Mon, 11 May 1998 15:45:48 -0500 From: James
> Henry <James_Henry@willbros.com> To:
> dakota-truck@buffnet.net Subject: DML: Magnum V8's Reply-to:
> dakota-truck@buffnet.net
> Do the late model magnum 318/360 use roller cams? Do they have
> roller rocker arms? Do they have forged, hyper eutectic, or cast
> pistons?
>
> I'm trying to find out how durable these engines are and if they
> would stand up to big NOS or Boost. The CR of 8.9:1 would lend
> itself to big boost.
>
> These engines really seem to die off after 4000 rpm. Has anyone
> ever had the stock intake extrude honed to see if it would help
> the motor breath better? How about extrude honing the stock
> exhaust m> -james
>
> '98 RC R/T
>
With roller rockers and new springs I can fly to 6000 rpm with no
problem. Finally hit the MP SBEC 6200 rev limiter which is something
I could never get close to before. I think the biggest factor is the
springs. Man the Mopar Performance springs are hugh compared to the
stock ones and the stock ones can only travel about 2/3rds of thier
height because the bottom 2 1/2 coils are touching, therefore valve
float at high rpm.
Hope this helps
Alan...
George West, TX
>
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