DemonGT

have a 1991 RS tbi 305..want to swap to a tbi 350...seen this motor on summit racing and was wondering if all the tbi stuff will swap over to it and if the motor will work? also wondering how performance will be with the tbi? also should i run a aftermarket tbi intake..if so what one?? and ill need a knock sensor and some other kind of sensor and thats it for the swap right?

link to motor:
http://store.summitracing.com/partde...0&autoview=sku

P.S. new to camaros....sorry if i seem "out of the loop"

five7kid

iTrader: (14)

It will work. It is "older school" flat tappet cam, 2-piece rear main seal, perimeter bolt valve covers. The heads aren't anything to write home about.

As I've mentioned in other threads, my brother got a rebuilt 350 from these guys http://www.rebuilt-auto-engines.com/...30105457173.95 . He put it in a TBI truck, and is very happy with it. Note it has a roller cam and the "good" TPI heads (make sure to specify 083 castings). You'd have to use your tin and little things like rear main seal adapter, but that's not a big deal. Ran him right at $1700 to his door w/shipping/forklift fee and w/o returning the core. If you really think you need a 4-bolt main, that's also available for a higher core cost.

You'll need a 350 knock sensor. Full exhaust upgrades a must. Check out the TBI forum for typical modifications needed when going to a 350.

five7kid

iTrader: (14)

And, they're in your neighborhood...

DemonGT

thanks alot...that definitly seems like a better deal on that motor...i was wondering if i or...if people usually reuse the stock intake or if you usually buy a aftermarket tbi intake?? and then you just reuse the accessorys and oil pan ect from the 305?

DemonGT

oh yea...that motor you posted a link to..what kind of HP numbers is that capable of?

five7kid

iTrader: (14)

Depending upon the cam and what else you do, and how you rate it (that 290 HP is flywheel gross, with the engine not powering any assessories like the water pump or alternator, with open headers, and carb; while the HP figures associated with our cars, your LO3 170 HP, for instance, is flywheel net, with the engine powering alternator & water pump, air intake & exhaust as installed in the car, etc.). But, heads-up with that GM crate, well over 300.

ShiftyCapone

iTrader: (7)

I would see if you can find a low mileage shortblock from a local junk yard. See if you can find an L98 shortblock, Caprice LO5 (350 TBI), or a vortec truck shortblock (recomended). You can feasable get a 350 vortec motor which comes with a decent cam and great heads. Vortec intakes are expensive but you could get both the motor and the intake for under $700 (if not cheaper). I would avoid any TBI or truck replacement motors on the fact that they come with lack luster heads and an even lamer cam. For the same money you can be ahead of the game. Five7's link isn't a bad motor for the price. You can get decent flow numbers from 193 heads at low lifts when ported. I would really look for a roller motor though. You may even want to look at a new L98 shortblock that is sold through sgoggin dickey for around $1100 or so. You could then choose whatever heads you want and go from there.

DemonGT

iv never heard of sgoggin dickey ..what is it...i thought the motor he listed was a roller cam motor? isnt there some where that sells shortblocks or long blocks with performance type heads on them? i know when i did my engine swap i didnt get a motor from a rebuild place or ford...it was from a seperate company that builds motors ect...cost more i guess

the budget is 3-4K to spend...looken to just swap in the 350 and have a decent cam and heads on it that will get it to at least 300HP..but want to do it in one shot...dont want to put a 350 in with crap heads and have to swap them out later....

DemonGT

and if i got one from a junk yard what exactly am i looken for?? type of vehical..and year? do i want just the shortblock or are there some i can use the heads off of to?

im new to camaros so i dont know what L05 is or means or L98 is ...??

five7kid

iTrader: (14)

Scoggin Dickey, a dealer in Texas. www.SDPC2000.com

The low-end crate engines don't have roller lifter cams. The SDPC "Caprice" crate does, but it still has poor heads.

LO5 is a 350 version of the LO3 TBI. It was offered in full sized sedans and light trucks, but not f-bodies. L98 is a TPI 350 offered in f-bodies and Vettes.

Several places offer performance shortblocks and heads. SDPC has quite a few offerings.

DemonGT

any thoughts on this motor
http://www.sdpc2000.com/catalog/120/...e-Assembly.htm

im still a bit confused as to what to do about the intake??

five7kid

iTrader: (14)

Ah, the good ol' 350 HO.

Vortec-specific intake manifold, either TBI or carb w/adapter. Exhaust upgrades, some prom tuning, etc.

theMachinist

i swaped out my 305 tbi for 350 everything bolted right up, the only thing different was the block, and .040 pistons, o yeah i had to get new injectors, but other than that it runs great hardly any problems.

DemonGT

so the motor i listed has a roller cam and would be alright?

if i got a junk yard motor what woud be the best vehcials to look for or ask for??

theMachinist- where did you get your motor? you didnt need a chip? what heads/intake are you using?

five7kid

iTrader: (14)

The crate 350 HO does not have a roller lifter cam. However, the block is machined to accept the factory roller cam setup.

The best junk yard vehicle to look for is one that has a 350. Use the shortblock, most likely you'll toss the heads but you may get lucky.

theMachinist

well i just used the same heads, intake, computer. and the 350 i used is just a 2 bolt block, from 76 it was somthing we just had sitting in our garage, like i said i just bought bigger injectors for the throttle body, i didnt change the chip and it runs like a champ.

SchwarzCamaroRS

i got that motor from them, great torque, but hp is a little lacking... ive got some TPI 350 heads and an LT1 cam that are going to wake that puppy up soon, total for the motor, new parts, incl. shipping was under 1500 bucks... i got it while it was on special a year back though, i think just the motor is 1500 now... if i could do it over again, id build a better one... or i would just buy a ZZ4-350 or ZZ4-383.. they are 5-6k but wow... they are lil powerhouses... for 6k im sure a better motor could be built, but if you dont have any building experience, its a lil tough

DemonGT

i looked and i dont see the SDPC "Caprice" motor

SchwarzCamaroRS

http://www.sdpc2000.com/catalog/123/...-L0557KNA4.htm its this one

DemonGT

so what mods would you guys suggest to that motor to make it a decent motor..just heads....what would be a good head for a budget....

ShiftyCapone

iTrader: (7)

On a budget you can't beat vortec heads. If you can't afford the expensive nature of the vortec intakes than look for a set of L98 heads or world product heads. Depending on your compression you could even run 305 (081 or 416) heads with great success.

DemonGT

i seen vortec heads in summit..are the ones your talken bout the $1299 heads?

five7kid

iTrader: (14)

Looks like they've re-done their listings again. SchwarzCamaroRS linked the closest thing they have now - and it may be remanufactured, not necessarily a new engine. And, if remanufactured, it'll have a flat tappet cam, not a roller.

Another one bites the dust...

SchwarzCamaroRS

i believe its new, mine was new with the roller setup

DemonGT

well....heck.....did i mention this is my girlfreinds car?? mm..anyway..she wants a motor that would most likely just drop in...meaning she dosnt want to buy and install new or different heads and then mess with pushrods,lifters and rocker arms ect....just take off the pan off the current motor and reuse the accessories ect...said a different intake she dosnt care about..not a big deal....now she is geting interested in my car..and is starting to to talk of selling the camaro next summer...and looken for a mustang...mmm...and i dont want that..haha...yea im a mustang guy..but oddly i dont want her to have one...hard to explain....

anyway...so im really trying to find a ..well pretty much a long block that is what she wants...decent heads with a roller setup that only needs some parts from her current motor to swap over and then it would drop in...

five7kid

iTrader: (14)

When did you get it?

Until recently, the only thing the link talked about was a new engine. Now, remanufactured is in the mix, apparently.

lowe137

im doing a conversion from a 305 to a 350... i have an 86 fire bird... what is the diffrence from the 86 and 87 and up blocks.. i want a roller cam but will the block match... i like the prices of the rebuild company but i wont use the heads.. just want the short block... the 86 is diffrent from the 87 and up... not sure if the 87 will work..

five7kid

iTrader: (14)

An '87 block will go under '86 heads just fine. That's what I'm up to.