Will the TPI work with a 383 I want to build a motor that has alot of TQ for my S-10 blazer. Here is my parts list
Vortec heads
Vortec TPI intake manifold
GM LT4 Hot cam kit with 1.6 rockers
Stroker kit
msd
lol right now my mind is blank so what is so more things to make my 350 TPI run.

 

i dont think TPI works with vortech heads, id look into that, but i could be wrong


EDIT : didnt see the part where it said u have vortech TPI intake

 

Scoggin Dicky makes a baseplate for TPI that works with Vortec heads. While you are at it, port and polish the upper plenum and you may want to look at the runners that SC has as well. They will flow alot more air than the stock runners will.

 

Ditch the vortecs unless you intend to keep the SDCP manifold forever. At this time, SDCP are they only ones who make a TPI manifold that will fit the vortecs. Get some better aluminum heads that accept any manifold and any intake system you want.

 

So you dont think vortec heads is the best way to go. Just about every mag I look in they are putting vortec heads on there 350. I just want to build a high output 350TPI. So what is the best set up as for as parts.

 

Yes and no. If you don't intend to change anything about the intake system. You will have to go carb or use the Scoggy Dickin piece and that is that.

 

the tpi system is too small for a 350, much less a 383. it was actually designed for the 305 but was rushed into use on the 350 when GM realized that the 350 was still a popular engine, which is why it "gives up" at about 4800rpms on the 350 engines, because it was simply designed for a smaller engine. because of this, in order to keep cost down, i've been trying to designed a 350 engine using the stock system, or slightly modified system, to get extreme levels of torque rather than changing the intake just to get good horsepower at high RPMs. just last night i used that LT4 hot cam and the TPI system on my desktop dyno and came up with a nice setup that got 475 ft/lbs of torque at 2500 rpms!!!! that's BEASTLY for a 350, but it's not what im looking for in an engine for my camaro because the torque curve drops off too early for a street car. however, such torque would be very useful on a vehicle that is used for towing or another application that requires lots of low end torque.
if youd like more information on that setup drop me a line on AOL or AIM. my screen name is NFHinVA

 

GM TPI system, no but other TPI style setups, yes.

 

If the TPI want flow that good so will a TBI work. What do you think

 

?????? What are you trying to say?

 

Why not just use some more conventional heads and a better intake to get the best of both worlds?

 

So your gonna have to spend about 700+ on the vortec heads cause you will need them to be able to handle the higher lift cam. The skogin dickey manifold is around 300 right. So you are knocking on the door of the cost of AFR heads. Just a thought.

As far as a torque motor. A guy here in town is putting almost 400 ft-lbs down at the rear whells with a TPI 350 with vortec heads and a zz4 cam. The TPI pulsating effect does produce torque, no doubt. Seems like it was taylor made for applications like 4x4s.

 

The TPI for trucks has always been my thought. Oh, and last I checked, the Scoggin Dickey manifold is more like $400.

 

Currently I am musing with changing over to the HSR at the end of this year. I can do that because I don't have vortec heads. That is why I don't like those heads. They are a decent head but you are limited to one and only one manifold. If your needs change, you are stuck. Plus the weight and heat dissipation issue also comes into play. You can run more compression on Aluminum heads.

 

why the change aklim? The superram not living up to what you thought it was?

If it's ever for sale in the future let me know.