ozziesironmanoffroad

curious, why does everyone go with a chevy 350 when the 327 is a better motor? im debating droppin a 327 in my yota just to say ive done it. wont be happening for a couple years, but id like to get all the info on it that i can. whats so different from this swap than a 350? ive also been told by many people who have done the swap that the 327 will bolt up directly to my transmission. any thoughts?

olharleyman

I have debated this swap myself I have a 68 vette 327 with 202 camel hump heads and 375 hp from the factory and as far as I know you will still need an adapter to the trans according to DOWNEY OFF ROAD anyway. You will also have to get there clutch kit 10 1/2" and starter kit for it just like the 350 as for the auto I am not to sure since I checked only on the 5 speed set up.

The biggest advantage to the 327 is it will turn 10k rpm where the 350 will only turn 8,500 or so before going boom but i am sure you already know that. The other advantage is 350 parts are everywhere for cheap the 327 parts are a little harder to find but not to hard and the 350 was a step up from the 327 and put into almost every form of Chevy from the early 70's till today. The crank and stroke are the only differences I can think of between the two to get to the 350 from the 327.

I am not to up on the new Chevy motor's but someone once told me that the 5.3 I believe is the equivalent of the 327 but I am not sure of the liter conversion but know that there is a newer form of the 327 in some of the 90's Caprice and some of the smaller trucks 1/2 ton and 3/4 tons I believe but they are not as hp minded as the 60's-70's 327's.

V8 toy

Start saving you money bro! pull the trans while your at it! 5 or 600$ for the adapter plate to the 4 wheel drive unit,tip for ya buy everything first..
GOOD LUCK!
And realy do all your homework before you start this project its a big one $$$$$$$$

ozziesironmanoffroad

that one i know... lol. thanks. and olharleyman, isnt the 327 a better motor than the 350?

olharleyman

I think so because you can get so much more rmp out of it and rpm = hp without blowing it up. Now i just got off the phone with Downey and they say that there is a lot of work involved in the v8 swap and can run big bucks minus the cost of the motor one thing they say is an issue is moving the core support and trans has to be moved new drive line lengths front and rear and possible firewall mods to fit the rear mounted distributor.

The bell housing will have to be changed and it runs $455 then the clutch kit is $300 motor mounts $127 and the starter depending on the flywheel can run up to $300 and if you are going to use the newer one (mine being a 68) vss has to be gotten and reprogrammed.

The Vortec 4.3 is sounding better to me if I go Chevy may just find another 3.4 and go that route after all but I have a line on a 4.3 running for $100 and after all invested into 22re rebuild it comes out to be close to the same as 4.3 cost wise........what ta do what ta do

gilby4runner

OHM's point about rpms is good. The 350 has been the work horse of GM for many years. More people use them due to the over abudance of. Both are really good engines. On the other hand the V8 might be a little overkill for the toyota. Sure many do it but is it really that much more better than putting in the 4.3? We have 4x4 trucks (small ones at that). Are you going to be towing some ungodly large item? Do you want to pay for the gas? Just some thoughts.

redvette

From personal experiance, the 327 throws rods at high rpm's more so than the 350's. Also 327s are cast iron versus the later model 350s or 5.7l being alum.

okie81

The ol 327's were big block slayers, but the 327 has a shorter stroke (but same bore) than the 350 so you're not going to get the low-end torque numbers as easy, which is vital when you're wheeling.

Ever consider a 383 stroker? Tree-stump pulling torque!

ozziesironmanoffroad

i thought the 327 was a high torque motor unlike the 350, which was built for HP... hmmm

RevNL

All other things constant, a 350 will have more low end torque and a 327 will have more top end horsepower. Shorter stroke on the 327:

327: 4.000 in × 3.25 in
350: 4.000 in × 3.48 in

However, there are so many other differences between a 1969 Chevy 327 and a 1980 Chevy 350. The high compression and long duration large overlap cam from the '60s 327 were killed by emission standards and unleaded gasoline. You can put all that back onto a 350 if you don't mind buying high test fuel and failing emissions tests.

Also:
- Both are externally identical. Same dimensions, bolt patterns, etc.
- Both are cast iron blocks. There were no factory aluminum 350's. Some had aluminum heads, though.

Oh, and is it overkill? Anything more than a 22R is overkill, which is half the fun.

ozziesironmanoffroad

so ur saying the 3.0 is overkill...? lol.
point taken. thanks

KONASTAR

I loved my 22R and it did well for me... it was'nt until i decided to pull a loaded trailer behind my truck.
The setup just totally overwhelmed my little 22R & i had all those goodies any toyota truck could have.
And i was'nt about to go down that road and try to harness a 1000 horses for 12 grand from the 22R either, when i could easily get good HP & torque from a stock SBC motor for way less money.
And thoughts of a new V-8 Tundra was'nt in my budget either.

A SBC 327 now resides between the frame rails of my 85 p/u.

Mike
____________________________

85 Toyota p/u 4X4 & mathing trailer (another 85 cut in half)
Built SBC 327 .040 hypereutetic pistons, eagle rods
HV pump, milodon pan, Comp Cams hydraulic roller cam, roller lifters, roller rockers,
GM performance fast burn aluminum heads, port matched, S/S 2.02 int, S/S 1.94 ex
Edelbrock airgap, Edelbrock 750 AVS carb,
MSD 6AL w/rev control, MSD pro dist., MSD wires & blaster 2 coil.

TH350, B&M 2100 stall, red alto clutches & steelies,
reprogramed forward manual valve body, high press pump,
deep alum pan, B&M sport shifter.

Divorced New Process 202, twinstick
Tom Woods custom driveshafts, 1-ton 1350 joints
Narrowed rear Dana 60, 35 spline yukon axles, Detriot locker, Dynatrac cover, 4:88's, custom fab race track bar, rear disc brakes.
Narrowed front Dana 44 HD, High strength Moser axles, Ected Limited slip/locker, 4:88's, CTM joints, Stage 8 X-locks,
High steer., PSC hydraulic steer assist., light racing bump stops, Dynatrac cover, limiting straps.

Reinforced toyota frame with 1/4" plated (inside both framerails) front to rear for strength,
custom fabricated engine & transmission crossmembers, additional fabricated crossmembers & gussets to the frame.

Custom 4" cowl induction hood, 6" superlift springs, 3" body, line lock front & rear, wilwood adjustable rear brake proportioning valve.

Rock sliders, custom rollcage still in the works

ffryno13

my buddie just finished his 327 swap he had a hell of a time getting the distributer to clear the fire wall. we ended up cutting the heater out of the way. but its strong running motor. and he is running 39.5 swampers with 4.10s. good luck i hope it pays of for you.

ozziesironmanoffroad

it will be awhile, definitely... need to find a place to do it, plus the funds, plus someone that knows how to weld... and a place in arizona, so i wont have to smog it....
thanks though im looking into it

silverbullet830

if you go with a newer model ls1 engine you don't have to worry about a distributor. even the truck engines. 99 and up silverado/sierra v8s, either the 4.8 or the 5.3 are both DIS. i don't remember the specs on the 4.8 but the 5.3 is 285hp and 325tq at the flywheel. with a cam, intake manifold, headers, injectors, maybe a big TB and a good tune i'm sure you can get close to 400hp. hell if you can find a ls2 engine (6.0L from the gto) they make 400hp/400tq already. i think the stock 4.8 or 5.3 would be plenty of power, but the potential is there to make more. its all about how much you want to spend and what you want to do with it. i'd love to do a v8 swap. my 2nd gen 4runner weighs what? 4300lbs? my dads 01 ext cab silverado is 4650lbs curb weight. 5.3 sounds like a good fit to me.

Team420

I have considered a chevy 327 or 350 swap for a while.... thing is tho.... what do ya really do with all that power???? The front end isnt meant for it...even with a sfa, the truck is waaaaayyy too light for it( i sometimes have a hrad time keeping mine planted with the 3.slow) and the frames will twist if not supported properly.... seems to mee... a heap would be a way better candidate for a v8....our little rigs were designed for 4cyls....

86Toyrunna

IMO 327 is a wicked street car motor, good for a night hunting trip for bigblocks. My step brothers dad built a 71 camaro with a 327.. roughly a 450hp car and when they finaly did get it to hook up it turned like a 12.3 in the quarter on pump gas. I guess it would be nice to have a 327 in something that is going to be used to haul a$$ like in the desert or in the sand, somewhere when your gonna wanna be turning high rpm for a extended peroid of time.. other then that i think id just 350.. i played with doing a early small block swap into my old project 91 pick up but with no body lift trying to get the distributor to clear was a nightmare.. before it got finished i had scrap the project and part it out. i think if i did it again with a domestic swap.. it would either be 4.3 vortec or a LS1.. but honestly id say screw the domestic idea.. go with a 1UZ

Team420

exactly what I was thinking!!

Adam F

What do you do with all that power? You haul ass!

If you cant keep the front end planted, then you need to re-work your suspension.

Frame twist? On a Toyota? Yea right! Its a fully boxed frame, double walled from the cab forward. Its NOT going to twist. Maybe it could crack, but thats not going to happen with just a mild 350. Maybe if you have a built 500+ HP and you beat on it. Treat it well and you shouldnt have problems. Have you ever seen the frames on Chevys? They are thin wall C channel. Toyota frames are beefier than those!

Better off in a heep? Are you serious? Your saying a jeep is heavier duty than a Toyota????

Adam F

Why dont you guys take your hating into another forum? This is a DOMESTIC SWAP forum. For DOMESTIC SWAPS. Stop trying to convince people otherwise.