Hey guys been looking at these threads for a while need some advice. I have a Dakota r/t with a 408 short block building now -23 dish piston need advice on a cam and heads , currently have pie magnum EQs level 1 and huges air gap fi intake cam now is comp 5.28-5.36ex and 2.18- 2.24 on a 114lsa mid length headers 1 3/4 4.10 gears and stock 46re trans/convert. Looking for 450-500hp for street driver with a/c what can I do with what I have??
5.9 build
- Thread starter pat d
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Bobzilla
Well-Known Member
Are your heads the older better Australian or New Zealand castings or the current Chinese castings? It will likely make a difference in power potential. If you are not sure how to tell the difference just post a picture of either end of one of your heads.
Have you run the heads? I’m actually contemplating a set of PIE Stage 1’s and Utawesome kegger mods for my 1998 Grand Cherokee.
The new EQ’s have a lot of improvements like a thicker deck and cooling passages, both of which reduce cracking.
The new EQ’s have a lot of improvements like a thicker deck and cooling passages, both of which reduce cracking.
Not sure on the heads truck is in shop getting other work done they have freeze plugs on end if I remember they look real good out of box. go for stage 2 if you going to buy new I got cheap and now I’m in this situation, was going for Hemi swap .
Bobzilla
Well-Known Member
Those are definitely the currently available version cast in China. They do not flow quite as good as the older version, but they should still be a good solid foundation for your build. I will be following along to see how this build progresses, hoping you keep us updated.
Add a 100 shot of GAS, no ring gap worry at that level , $500 gives 100 HP, and a full second in the 1/4 !!
Best bang for the $
Trick Flows are off the shelf proven 500 hp plus heads with reasonable cam and cr, Edelbrocks can probably get there with enough cam but more than likely be under 500 hp unless ported, ported Aluminum speed masters are another option.
Could get yours ported, 500 hp probably a stretch without a lot of cam.
From what I've notice you need around 1.8 cfm per hp with reasonable cam and cr making it 250-280 cfm to make 450-500 hp with like around 10:1 & 240° ish cam.
Could get yours ported, 500 hp probably a stretch without a lot of cam.
From what I've notice you need around 1.8 cfm per hp with reasonable cam and cr making it 250-280 cfm to make 450-500 hp with like around 10:1 & 240° ish cam.
Dan the man
Well-Known Member
These guys hers have a lot of knowledge and experience. I believe that they will be able to help you out. I'm not allowed to commit.
You Need to commit actually.
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