evilemokid94

iTrader: (6)

My buddy just bought a 96 suburban with the 350 vortech in it and offered it to me for the great price of $300. Runs like a top and is string. Will this work in my car? I plan on converting it to an lt1 intake but I need to make sure it will fit and work

BlackenedBird

iTrader: (5)

The LT1 intake will not fit the Vortech heads. There are very few intakes that do fit the Vortech heads.

evilemokid94

iTrader: (6)

Well in sure I can find an intake that's tune port or if I need to I'll change the heads

vetteoz

iTrader: (13)

LT1 doesn't fit std SBC heads either without mods



Summit only have about 70 choices
http://www.summitracing.com/search/M...keyword=intake

evilemokid94

iTrader: (6)

I Can always find lt1 heads and intake. Unless the vortex heads are just that good, but I want a fuel injected intake. Not tbi, tpi

vetteoz

iTrader: (13)

No need to
Use the SDPC TPI base for Vortec heads
http://sdparts.com/category/sdpc-tpi-vortec-baseplate

or buy a HSR for Vortec heads
http://www.summitracing.com/parts/WND-7542/

vetteoz

iTrader: (13)

LT1 heads won't fit on a reg SBC block ( inc Vortec) without a lot of machine work.
You only modify the LT1 intake to suit earlier heads
See
http://www.s10wildside.com/wildside/lt1induction.htm
http://forums.corvetteforum.com/c4-t...or-an-l98.html

Vortecs are a cast iron version of the LT1 heads
"the most efficient mass-produced small-block Chevy cylinder head ever created."
"The best-flowing small-block castings ever installed by GM on the assembly line"
Read
http://www.chevyhiperformance.com/ho...458/index.html

BlackenedBird

iTrader: (5)

Well, he asked about FI & those are all carb intakes (i didn't bother to look through all 70 of your search results, but very much doubt that i need to) and you've already posted about the ONE Vortec TPI so yeah.....One = VERY FEW.

vetteoz

iTrader: (13)

So with short runner intake options
HSR Vortec , the Edelbrock Proflow Vortec or a converted LT1 intake,
or long runner options
the FIRST Vortec intake.
or the SDPC TPI Vortec base which gets you stock TPI , big tube runners like SLP's or even a Super Ram
or single plane
Holley EFI Vortec intake
he has plenty of MPFI choices on Vortec heads.

Not a lot different from stock head choices?

BlackenedBird

iTrader: (5)

Blah...Blah...Blah....Typical you.

I've read your past posts ON TGO & am not playing your pissing match game.

Unsubscribing

vetteoz

iTrader: (13)

Doesn't help OP posting inaccurate or incomplete info

evilemokid94

iTrader: (6)

****, so i cant easily convert this into an lt? well looks like im on the hunt again, do the vortechs flow better than an lt? would that 96 engine fit without alot of problems like a normal engine or lt?

evilemokid94

iTrader: (6)

just found this info on wiki

5700
[edit] Generation I

The Vortec 5700 L31 is a V8 truck engine. Displacement is 5.7 L. It is the last production Generation I small-block from Chevrolet. The cylinder heads feature combustion chambers and intake ports very similar to those of the LT1 V8, but without the reverse-flow cooling. As such, the L31 head is compatible with all older small-blocks, and is a very popular upgrade. It offers the performance of more expensive heads, at a much lower cost. It does, however, require a specific intake manifold (a Vortec head has 8 bolts attaching the intake manifold as opposed to the traditional twelve bolts per head). The L31 was replaced by the 5.3 L 5300 LM7. The 2002 model year was the final year for the L31 5.7 L small block V-8 whose origins date back to 1955. The Vortec 5700 produces 255 hp (191 kW) to 350 hp (261 kW) at 4600 rpm and 330 ft-lbf (448 N•m) to 350 ft-lbf (475 N•m) of torque at 2800 rpm. It is currently being produced as a crate engine for marine applications and automotive hobbyists as the "ramjet 350" with minor modifications.

vetteoz

iTrader: (13)

Refer post #7.
Vortec are some of the best stock heads around ; very popular because they are relatively cheap and flow good.
You already have a set on the '96 engine; guys pay $300+ just for the Vortec heads

LT1 intake conversion was popular before the other TPI alternative intake choices listed above became available.
Few do it now because there are better options at a reasonable price
( if you have to pay someone to rework the LT1 intake to suit )

Vortec engine is going to fit same as any other SBC you choose.
What you decide to run for induction is the harder part
For MPFI you need computer and wiring to suit 86 - 92 TPI car

evilemokid94

iTrader: (6)

See this is what's bugging me because iv always had my heart set on an lt1 after helping a buddy( same buddy with the 96 suburban) put an lt into his camaro. But now iv got this vortech sittin in front of me and idk which is a better engine to chose

vetteoz

iTrader: (13)

Bird in the hand or bird in the bush?
You have a complete running Vortec in front of you , will you get as good a deal on a LT1?

Read what is required for a LT1 swap
https://www.thirdgen.org/forums/engi...questions.html

evilemokid94

iTrader: (6)

Trust me iv got that lt1 thread almost memorized and i can get an lt1 with everything on it, wiring harness, computer, transmission and the motor mounts for under $500

vetteoz

iTrader: (13)

So the original question should have been;$300 Vortec engine vs $500 complete LT1?

tylercamaro

iTrader: (1)

vortec heads have 8? ports where as regular heads have 16. or something like that it currently escapes me. lt1 intake will defnitely not work. itd be dumb to try

tylercamaro

iTrader: (1)

also lt1 heads dont work on a sbc block.

vetteoz

iTrader: (13)

Just repeating what was already stated in post #7 above

But it has been done by 3rd Gen members
https://www.thirdgen.org/forums/fabr...n-project.html
https://www.thirdgen.org/forums/tpi/...eads-gen1.html

travis401

iTrader: (1)

are you refering to bolt holes? the vortech heads have 8 bolt holes for the intake, other gen 1 heads have 12. the lt1 intake can be made to fit on a gen 1 sbc with a few modifications, you can get lt1 intakes for $50. so if you can rework the intake yourself, its an viable option. of you cant then it makes more sense to just get an intake thatll be a direct bolt on for the vortec heads.

id personally shy away from the lt1 engines. the optisparks have well documented failures and the aftermarket isnt as big on them. a lot of parts are standard gen 1 parts, but some are lt1/lt4 specific. id run the gen 1 with vortec heads and get a stealth ram for a few hundred and run it off a stock 350tpi computer/harness, since youre starting with a v6.

as stated the lt1 heads are based on the vortec heads. they are essentially just a slightly modified alum version. they can be made to fit on a gen1, but it requires welding in some plugs for some coolant ports since theyre a reverse flow head.

evilemokid94

iTrader: (6)

but if i get the vortex, i cant run any different heads or intake, id have to run just vortex wouldnt i?

vetteoz

iTrader: (13)

Vortec engine is only a "VORTEC" because of the heads.

Once the heads are gone it is just another regular SBC ( 1 pce RMS ' 87 + ) shortblock
that will take any SBC heads ( except LT1 heads ) you want to fit
And if you install reg SBC heads then you can use any reg SBC intake
LT1 intake still need mods to fit reg heads as detailed above

travis401

iTrader: (1)

the block and rotating assembly on a 96-99 vortec engine is the same as every other gen 1 sbc with a 1peice rear main seal. you can fit vortec heads on any gen 1 sbc without modifications, they just bolt on like every other seat of heads. they just require a vortec specific intake because of the raised runners and different bolt pattern. heres a pic of a vortec head (its aftermarket head and has both the vortec bolt pattern and the 87+ bolt pattern) with a cut away 87+ sbc intake on it. you can see the difference in the runner design as well as the different bolt patterns.

fireburdluvr85

could always use the shortblock and modify the wiring to run sefi on your tpi? thats what im doing.....

travis401

iTrader: (1)

the OP is starting with a v6, so none of the fuel injection system can swap over to the v8.

evilemokid94

iTrader: (6)

Nothing but my harness lol. Decided to just let the vortech go. When I go get my lt1 I'm pulling the entire drive train, ie engine, tranny, harness, computer, aluminum driveshaft, and posi rear end anyways so that way would be cheaper and easier for me than just getting the 350 engine, having to find a tranny, a way to control the tranhy, a harness, radiator and all the litte things you know? It would be harder I thibk

tylercamaro

iTrader: (1)

umm........... you can use the same tranny you have, i mean if you think swapping a standard sbc is hard then you have no idea what your gonna get into with an lt1. and even thats a little easier than an lsx

travis401

iTrader: (1)

the v6 trans wont bolt to the v8, so hes right on that aspect. on the v6 harness being reused, yes its possible,but would require a lot of reworking to get it to work on a v8. itd be easier to just replace it.

an lt1 swap is about the same difficulty as a sbc swap. you just have more wires and hoses to route. but if you get the engine, trans ecm and harness all from the same donor car it makes things easier.

an lsx swap is a different beast entirely.

evilemokid94

iTrader: (6)

lol trust me guys i know exactly what im getting into lol. iv done an lt swap once on a thirdgen, thats why i love them. but im sending my harness to be reworked by pocket, both the lt and my v6 harness, he said he could do it so i trust him. and i could do an ls swap if i wanted for the same price i could do my lt but i just dont like all the extras that the ls makes you do, and to me the lt sounds meaner but like i said thats just me though. it would take more time and hunting to try to peice together that 350 sbc where my lt1 is all right there, even the intake where i can have it ported since i like that intake anyways

aurum_duck

iTrader: (2)

i'm in the middle of this swap right now going to a VORTEC FIRST TPI system and just finished cleaning the buildup and installing a new oil pump on the long block. If anybody wants any part off the old original 99 vortec intake complete (1500 suburban 350), pm me and pay for shipping and you can have it.

anyway, quick questions...

which oil pan is best or will fit?? the l31 5700's pan or the original 91 camaro 5.7 pan??

is what was left behind a reusable oil pan gasket?? how do i know and how do I clean/prepare that thing for reuse??

Using 24lbs injectors and the FIRST system and planning on tuning the memcal regardless--what is my best slide in stick for these heads without doing valve-train work?? Any FIRST vortec people out there care to lend a recommendation for a camshaft that isnt too crazy-- i currently have a cheap torque converter installed but have a vigilante in the box set to 2800 stall. I dont want a crazy ground thumper and looking more for awesome power and a daily driver. how important is it that I install that high dollar sum' gun converter?? my tranny was just refreshed as well, and it has 3.23's out back.

Which flexplate do I utilize?? the oem for the 5700vortec is still on it and rusty...

lastly, how do you know what angle to put the oil pickup tube at?? or is it simply put it low and push up with the pan when installing?? i havent checked that out yet, off to do some youtubing. whats the best technique for installing that tube?? is there a tool to press it in??

wish there was a walkthrough like the ls1 swaps get.

obviously it's my first overhaul. nothing like the smell of scaly oil crust...

tylercamaro

iTrader: (1)

no no im just saying a sbc swap is so simple its stupid, lt1 swap is a little more dificult. he just mentioned he needed a whole new harness but you could get by using the v6 one to control the trans.