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-   -   Magnum 408 Stroker rebuild (https://moparforums.com/forums/f81/magnum-408-stroker-rebuild-20985/)

Stroked98Ram 12-28-2017 01:23 PM

Magnum 408 Stroker rebuild
 
Alright mopar fans, i'm new here and looking for a little advice. I currently have a mild 408 stroker in my 98' Ram 2500, but I think there is a lot of power left untapped. It's somewhat a daily driver / tow rig / weekend toy.

The current build consists of:
4in Eagle crank(forged) and I-beam rods
9:1 keith black pistons (forged Aluminum)
Hughes Air-gap intake
34lb/hr injectors
F&B 2x52x55 throttle body
Comp 20-602-9 cam
Stock heads with some minor porting
Custom hemifever SCT tune

Currently looking at upgrading to:
Eddy Aluminum heads with port work
Eddy 1.6:1 roller rockers
Hughes SER2226ALN-10 cam

Have to verify if the eddy springs will handle the hughes cam.

Any thoughts, suggestions, recommendations, experiences would be greatly appreciated.

RacerHog 12-28-2017 08:11 PM

Look at maybe bumping up the compression just a tad.... :)

Stroked98Ram 12-29-2017 10:45 AM

Yes, gotta talk to the machinist and see if I can deck the heads to jump compression or if i'll need new pistons. shooting for 10:1 to 10.5:1 still needs to be pump gas friendly.

TVLynn 12-29-2017 07:40 PM

Several of the head mfg offer heads in different chamber sizes Look into that before replacing pistons

xaza 01-04-2018 04:50 AM

You might be happier getting your tune from FlyinRyan. I have heard several others in my other forum switch and be extremely happy. Last I knew he requires you to install a data logger, this requires an additional O2 sensor bung to be welded into exhaust(at least on the one I got). I have a HemiFever tune on my truck that I took to the track and switched between performance and stock and ran exactly the same times. I have had the data logger waiting and when it is installed I will be switching.
FlyinRyan
https://www.frptuning.com/


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