Thanks for all comments. As part of rebuild all stock parts are replaced (timing chain, optispark, retainers, lifters, oil pump...). The trick flow kit should give med about 430 HP (engine) on stock 350 LT1. A stroker kit probably means more work on block (make clearance). I have to decide either to stay safe on 350 and be happy with that or get some more lo rew torq with stroker. I already have a tune from from PCM4less for trick flow and 350 cid.. Dont know how good they are to make a new chip for a stroker combination. Also already have Melrose longtube headers and BB-tri flow 3" exhaust (no cats) - and sound is loud but in my opinion as it should be...
Easy questions and difficult answers.. Dont want an engine causing me problems later.

 

they also go vroom.

 

More time spent NOW picking and choosing your parts and making sure you have all bases covered will save you headaches later.

Some rods are profiled so you wont need clearancing with stroker cranks but it can be close.

I would suggest a better timing chain like the LT4 ED or an LT4 set over a 93 chain link.

Ls7 lifter I presume?

 

2 they go boomb!!!
Yes mine did too ! but after an obvious mistake on their part. nature of the beast. I went elsewhere and destroyed their reputation by telling people the truth.

this is really confusing!!!!!why you would coment on my post try in vain to make it look like i dont know what im talking about......say yeh i know a guy who had one work one time but mine blew up? say its the same size? so what !!!!!....it blew up because of someone who made a mistake...im telling you kid they blow up !!!!!! im leaving for the track now i dont have time to argue im just telling the truth too...

 

are you kiding me read this the heads have the same bolt pattern????? talk about irevevant!!!! except for the fact the different there the same!!!!!! oh my god

 

When You are done & ready with 383's & wet sump oil systems for flat out road race use at 140 to 180 mph get a hold of me George.

Its not drag racing I know.

Most don't have a clue whats involved to build 1 to stay together for that type of racing & to win.

Gunny has been around too.
He knows also.

Brian R.

 

As 5abivt notes , stupidest post in years.
Nothing you say makes any sense except for the fact you had bad luck with a 383 engine and think everyone else will too.

Exactly the point.
The differences you rabbit on about have no bearing on the topic the OP asked about;
boring and stroking a 350 SBC

 

Not really Rod.

Points out 383 & following the crowd is not for everyone.

Let George Rant & Rave & Freak out Cussing away.

He blew up 7 383's so far.

#8 is on the way too.

God Damn, Mother ficken, **** sucken, Sun of a bitch, Mother ficken Azz mother ficker.............
Got a head start for you George...........Carry on

 

Dang there Brian, don't you ever sleep? There's no sense in arguing with some folks. I posted way back there, stated the case and just left. We all know someone is wrong here and is trying to make a bad first post into a good last post. That's not going to happen. As I said, there have been more strokers 350 to 383 than any engine in the history of infernal combustion. It must work. I've seen 383's wear out but never go blooom or whatever sound his makes.

I do like Trackman's ingenuity though. Some of his work on cooling may one day benefit us all. I swear, if I lived closer I'd build him an engine for free just to show him that they do work. I'd have to put in a rev limiter though. I'm thinking what......3500 RPM.

 

I have watched around $1,000,000.00 something go boom......LOL

Hillbilly guys like You & Me Gunny have dirt tracks around us in Kentucky & Illinois.

You can watch 383's sbc's with wet sump oil pans attached go BOOM all you want.
I have.............LOL

Those dirt track guys literally run over 1 another to get ahead & win.

I sleep.
About like You.
I have a 13 month old boy that is my daily alarm clock.

5am & up lately.

 

Well congratulations. Now is the time to confuse the little tyke. Why do we spend the first year of a child's life teaching him/her to walk and talk and the next 17 years telling them to sit down and shut up. No wonder our kids are confused.

 

Nicholas my boy likely will kick my *** when he is older.........LOL

Find the keys to the 87 Vert,
70 T/A,
& my other cars.
Claim them as his..........LOL

 

[final word read it again he has an lt1 correct it is considered a small "same size" block but that were the similarities end!!!! way too many problems caused by people who think there the same!!! trust me

 

There is very little that is special about the LT4. Sure they bolted a measly optispark to the front of the cam. I run a rear distributor like a traditional sbc in my LT4. was it hard? NO. Drop it with a hole drilled in the lt4 manifold.

Add a mezziere water pump and you can use ANY SBC single or double roller timing chain. Is the LTX THAT different? NO

It has reverse flow cooling. Big deal. Not hard to machine traditional SBC heads to work with an LTX block. Is it really that special or different? NO

Seriously you need to get lost in this thread. The op asked for stroker input not a cry babys experience with an LT1 who now preaches that all strokers are bad. seriously. Get lost.

 

Wow, just.............. wow!

 

i did the 355 route , stock 350 , .30" over

 

I do know that many people run 383's. They are financially feasible to build, and parts are there, so is the power upgrade.

I don't think many people run them like Trackman and nothing against him, just saying it seems like maybe he has a builder problem or he really runs it hard and finds the builder's problems.

I think the obvious answer here is for street applications the 383's hold up most of the time, but if you plan to race and beat the hell out of it a DART block or something else is the route to go and then stronger internals. Also not saying some guys don't drag race GM 383's here, but Trackman runs long and hard compared to staging and 11-15 seconds full tilt.

Many 350s turned 383 out there, now we should get a poll of how many race them and how many times they broke.

 

OK my 2ct...
If you need to spend much on the crank / rods / pistons, for what ever reason, the 3.75 or 3.8 stroke combo wont cost much if any more. Given a equivalent setup it will make the same power at a lower rpm than a 3.48 stroke or more power at the same rpm. in a street car it will probly rev faster simply because it makes more tork. The longer stroke will increase piston speed, so with the same rod in each setup the longer stroke will break the rod a couple hundred rpm sooner. Making similar power at a lower rpm will allow the use of a cheaper valve train or put less strain on a equal valve train.
bottom line as I see it; If you need to buy pistons, work on the crank and/or rods then a 3.75 or 3.8 stroke is nearly free power.


edit; check crank case as well as crank / rod to cam clearance. Consider a rod such as the scat stroker series when choosing a rotating kit. A small base circle cam should not be nessary but be shure to check.

A quick call to Scat will get you headed in the right direction. They will get you set up with the right part numbers then take their specs to Summit, Jegs, Competition Products ect to load up the VISA card!
I hope this is helpfull and that I presented this clearly.
Dave

btw the GMPP 383s are standard bore w/ 3.8 stroke

 

I love my 383 LT1. Look at my specs below. Notice more torque than HP. Maybe 430hp at the motor. Close to it. This motor was built 6 years ago. It has hydralic rollers and is chipped at 6100 prm. It is near bullet proof. The heads may be similar to yours. They are CNC'd LT1 and flow 276/182 at .600. I run a LT4 hot cam with 1.6 roller rockers. This is a great street and fun track car. I don't race but I do play on open road tracks. Did one this weekend. Lunati makes a good forged rotating assembley for your block. Doesn't cost much different than new GM parts and it is stronger. I have the best small block Chevy I have ever had. I am 66 years old and I have had a lot of SBC and BBC. Your heads will like a 383. You have my vote.