Guess this is it

[foxrider251]

hey guys my 98 kon threw the cylinder 8 rod the other day and due to my living situation im not too sure if i can keep er to throw a new engine in eventually due to nowhere to keep it for the meantime. so at least for now this is bye it was fun and thanks for all the the help i got in the little while i was here. my next truck is quite likely gonna be an 05 durtymax so no im not defecting to ford or dodge haha

 

[Donnie Yukonie]

Sorry to hear that man , Good luck . Hope to see you back again

 

[Gzes]

That sucks but good luck bro. Id just get a junkyard engine and slap it in. If its no good then pull and rebuild. Easy if you do it yourself

 

[foxrider251]

wellll ive been giving it some thought and i think for the price of getting another truck i might as well throw a 383 stroker in the ***** then adapt in a used 4L80E to handle the power...opinions?

 

[Chevrolado]

I was once considering that I couldnt afford an OBS.. I had to go newer. But then I realized a brand new 350 or 383 built and dropped in is cheaper than a newer truck anyway, PLUS I get to keep driving an OBS.. Im glad you've re-considered. I like this new way of thinking you have..
Dooooo it....

 

[foxrider251]

yeah i mean even if i throw a fresh 350 block in with a full edlebrock top end if i build it right i should be pushing 400 horse, but then ill have to pull the tranny too and do heavy duty clutches and shift kits which isnt too big of a deal

 

[SunlitComet]

and how do you think you can get 400 hp out of the vortec 350?

 

[foxrider251]

well my parts guy priced me out a brand new 350 ** block with vortec heads rated at 351hp now if i put an edlbrock intake manifold in there, do msd ignition and coil, and transfer over my cold air intake and throttle body spacer also my true duals with high flow cats i should be sitting around 380 at least...400 was just kinda a rough figure

 

[_Dylan_]

Lol, can't make power without fuel...which is why people don't like the vortec 350 central fuel injection.

Carb swap and a stand alone transmission controller if you are serious about making some big power out of it. Or a mercruiser multiport intake manifold and run all the LS motor goodies on it.

I'd just throw a 383 kit in it and send your pcm off to black bear and have them tune it.

 

[foxrider251]

yeah dylan im leaning more toward the 383, my buddy has a 383 block for me anyways. and all i need to do is send my computer away to get reprogrammed then itll run it?

 

[SunlitComet]

yeah edelbrock intake with a vortec fuel system aint happening. and a tb spacer ? HA!

 

[foxrider251]

Yes i realize this now, im just gonna go with the 383 and swap the head over from my vortec. Now ffs dont tear me apart for this but from what ive been seeing it appears easier to adapt the vortec fuel delivery system and get the computer re tuned to run the 383. I dont know if any of you have done this swap before but if you have any info or tips would be greatly appreciated. I also feel like im about to get in shit for going into detailed engine discussion in general disscusion

 

[Matt06Yukon]

Your asking for more problems which equal more money. I agree it'll probably be much cheaper to fix the Tahoe than buy a new truck, especially a used Duramax. But you'd probably be better to build another Vortec 350, maybe pop some goodies like roller rockers and headers on it with a tune and call it a day. If everyone says the injectors can't handle much more power than its probably not worth it. A fresh 350 will no matter what run better than what you've had.

 

[foxrider251]

you do have a good point matt and i do love the 350 theres absolutely nothing wrong with them but ive always wanted to try a 383 and this seems like the pefrect time to do one seeing as how theres no rush or anything like that i can take my time and do it right.

 

[Matt06Yukon]

Yes but the fuel system is kinda set where its at. Everyone seems to think its limits aren't much higher than the stock setup. This is just what rumor, perhaps its not completely true. In that case, by all means. Just trying to steer you in a practical direction. The 4L60e should be able to handle anything around that hp anyways too. Unless its tired.

 

[foxrider251]

yeah thanks anyways but im pretty set on the 383, only problem is trying to figure out how im gonna get more fuel into that beast :/ someone has had to have run into this problem before

 

[992door]

Bowtiefreak is running a 383 in his 2 door still on stock fuel pump I believe but I think he said somewhere it was right at the limit of what the fuel system can handle. Any more and more fuel is required.

 

[SunlitComet]

the FI system can handle a 383 even tuned to deliver more fuel to said engine. would not hurt to make sure you got good pressure from your existing pump.

 

[foxrider251]

yeah im talking to phone man on this being that hes been down this road before and he said the stock fuel system will run it just fine as well as the computer. and my pump should have good pressure its brand new lol