Nothing wrong with that plan.

All Performer intakes have EGR, and it's completely internal on the car version so you don't have to rig up an external tube to the passenger exhaust manifold. And just so you know...the stock 5.8 EGR tube isn't long enough to reach the valve when it's mounted on the Eddy truck intake so you'll need a custom tube made.


Potentially.. but at what rpm? The only graph I see is for the complete Performer engine package that includes the truck intake, performer heads, cam, TB, and shorty headers. All that produces a grand total of about 70ft/lbs more which is pretty lousy considering the cost of all those parts, you can get as much total TQ gain from a cam and longtubes on a stock motor and it'll produce more of that TQ at lower rpms.

 

30-80 ft/lb over stock depending on RPM, only when coupled with their heads, cam, headers, TB and exhaust. Geez, doesn't seem like the 5.8 version of these truck manifolds do much of anything to warrant the price tag.

This was not the case with my 5.0L which seemed to benefit from the long runner design on the Eddy truck intake. It got faster when I added the upper&lower to my K&N, longtubes, and exhaust, with stock e7s. Go figure, they say the 5.8 stock manifold is the worse of the two stock truck lowers, but the 5.8 Eddy truck does nothing for power, but the Eddy 5.0 does??

 

I don't know about the 5.8 eddy intake, but the 5.0 eddy truck intake works good for me , good power from 2000 to 5800 rpm.....Lew

 

okay, so the trickflow r series upper intake with a bbk 75mm throttle body would suit my needs? i wont need any different fuel rails? everything with the egr will be fine?

 

Whopping 34 ft/lbs? Doesn't seem too whopping for the $600 it costs to get it. I'm not trying to knock 'em or build em' up or anything; I bought both the 5.0 and 5.8 version, just decided that I'd rather go with a gt40 setup for my 351 swap, which flows better for about the same $ and is infamous for great torque production.

"Potentially.. but at what rpm?"

It says they make that 34ft/lb over stock at 3500rpm, on the side of the box for the #3881 5.8 truck kit. It doesn't show a graph or tell you if that's with a throttle body, etc. If I had to guess it's probably not much more than 10-15 ft/lb better than stock from 2-3k without other add-ons.


mike460: I was under the impression that the TFSR intake was a much larger volume runner intake than the gt40 lower, and wasn't suitable for use in a relatively stock truck 351. I know of guys that run that manifold on blown or stroked setups, in the Lightning community, but I'm surprised it works very well at all in a non-race/high rpm application with those freeway gears you got.

 

It does work pretty good, but I also have a pretty decent sized Lunati cam (51025 - 224/232 degrees duration @ 0.050, .535/.544 lift), Edelbrock Performer RPM heads (60229 P/N IIRC), headers, MSD ignition, 30 lb/hr injectors, and the intake. It is a stock short block, but everything on top is good. If you are gonna stay stock-ish, I think your plan to go with a GT40 intake would be best.

I am looking forward to a gear swap though.....been collecting parts, all I have left is the install kit....